From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Fri, 7 Jan 2011 03:12:21 +0000 (+0000)
Subject: Change version.
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0b1680d84ab336f5cced6c8e2d888d9ecd4b4cd3;p=dealii-svn.git

Change version.

git-svn-id: https://svn.dealii.org/branches/releases/Branch-7-0@23147 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/configure b/deal.II/configure
index 1ba4c81653..1b061b7275 100755
--- a/deal.II/configure
+++ b/deal.II/configure
@@ -1,21 +1,25 @@
 #! /bin/sh
 # From configure.in Revision: 23045 .
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.63 for deal.II 6.4.pre.
+# Generated by GNU Autoconf 2.65 for deal.II 7.0.0.
 #
 # Report bugs to <dealii@dealii.org>.
 #
+#
 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
+# Inc.
+#
+#
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
-## --------------------- ##
-## M4sh Initialization.  ##
-## --------------------- ##
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
@@ -23,23 +27,15 @@ if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
 else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
 esac
-
 fi
 
 
-
-
-# PATH needs CR
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
-as_cr_alnum=$as_cr_Letters$as_cr_digits
-
 as_nl='
 '
 export as_nl
@@ -47,7 +43,13 @@ export as_nl
 as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-if (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
   as_echo='printf %s\n'
   as_echo_n='printf %s'
 else
@@ -58,7 +60,7 @@ else
     as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
     as_echo_n_body='eval
       arg=$1;
-      case $arg in
+      case $arg in #(
       *"$as_nl"*)
 	expr "X$arg" : "X\\(.*\\)$as_nl";
 	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
@@ -81,13 +83,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
   }
 fi
 
-# Support unset when possible.
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
-  as_unset=unset
-else
-  as_unset=false
-fi
-
 
 # IFS
 # We need space, tab and new line, in precisely that order.  Quoting is
@@ -97,15 +92,15 @@ fi
 IFS=" ""	$as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
-case $0 in
+case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
-done
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
 IFS=$as_save_IFS
 
      ;;
@@ -117,12 +112,16 @@ if test "x$as_myself" = x; then
 fi
 if test ! -f "$as_myself"; then
   $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  { (exit 1); exit 1; }
+  exit 1
 fi
 
-# Work around bugs in pre-3.0 UWIN ksh.
-for as_var in ENV MAIL MAILPATH
-do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
 done
 PS1='$ '
 PS2='> '
@@ -134,7 +133,249 @@ export LC_ALL
 LANGUAGE=C
 export LANGUAGE
 
-# Required to use basename.
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+      if test "x$CONFIG_SHELL" != x; then :
+  # We cannot yet assume a decent shell, so we have to provide a
+	# neutralization value for shells without unset; and this also
+	# works around shells that cannot unset nonexistent variables.
+	BASH_ENV=/dev/null
+	ENV=/dev/null
+	(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+	export CONFIG_SHELL
+	exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"}
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org and dealii@dealii.org
+$0: about your system, including any error possibly output
+$0: before this message. Then install a modern shell, or
+$0: manually run the script under such a shell if you do
+$0: have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+# as_fn_error ERROR [LINENO LOG_FD]
+# ---------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with status $?, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$?; test $as_status -eq 0 && as_status=1
+  if test "$3"; then
+    as_lineno=${as_lineno-"$2"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $1" >&$3
+  fi
+  $as_echo "$as_me: error: $1" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
 if expr a : '\(a\)' >/dev/null 2>&1 &&
    test "X`expr 00001 : '.*\(...\)'`" = X001; then
   as_expr=expr
@@ -148,8 +389,12 @@ else
   as_basename=false
 fi
 
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
 
-# Name of the executable.
 as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
@@ -169,412 +414,124 @@ $as_echo X/"$0" |
 	  }
 	  s/.*/./; q'`
 
-# CDPATH.
-$as_unset CDPATH
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
 
 
-if test "x$CONFIG_SHELL" = x; then
-  if (eval ":") 2>/dev/null; then
-  as_have_required=yes
-else
-  as_have_required=no
-fi
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
-  if test $as_have_required = yes &&	 (eval ":
-(as_func_return () {
-  (exit \$1)
-}
-as_func_success () {
-  as_func_return 0
-}
-as_func_failure () {
-  as_func_return 1
-}
-as_func_ret_success () {
-  return 0
-}
-as_func_ret_failure () {
-  return 1
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
 }
 
-exitcode=0
-if as_func_success; then
-  :
-else
-  exitcode=1
-  echo as_func_success failed.
-fi
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
 
-if as_func_failure; then
-  exitcode=1
-  echo as_func_failure succeeded.
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
 fi
-
-if as_func_ret_success; then
-  :
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -p'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -p'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -p'
+  fi
 else
-  exitcode=1
-  echo as_func_ret_success failed.
+  as_ln_s='cp -p'
 fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
 
-if as_func_ret_failure; then
-  exitcode=1
-  echo as_func_ret_failure succeeded.
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
 fi
 
-if ( set x; as_func_ret_success y && test x = \"\$1\" ); then
-  :
+if test -x / >/dev/null 2>&1; then
+  as_test_x='test -x'
 else
-  exitcode=1
-  echo positional parameters were not saved.
+  if ls -dL / >/dev/null 2>&1; then
+    as_ls_L_option=L
+  else
+    as_ls_L_option=
+  fi
+  as_test_x='
+    eval sh -c '\''
+      if test -d "$1"; then
+	test -d "$1/.";
+      else
+	case $1 in #(
+	-*)set "./$1";;
+	esac;
+	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+	???[sx]*):;;*)false;;esac;fi
+    '\'' sh
+  '
 fi
+as_executable_p=$as_test_x
 
-test \$exitcode = 0) || { (exit 1); exit 1; }
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
 
-(
-  as_lineno_1=\$LINENO
-  as_lineno_2=\$LINENO
-  test \"x\$as_lineno_1\" != \"x\$as_lineno_2\" &&
-  test \"x\`expr \$as_lineno_1 + 1\`\" = \"x\$as_lineno_2\") || { (exit 1); exit 1; }
-") 2> /dev/null; then
-  :
-else
-  as_candidate_shells=
-    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  case $as_dir in
-	 /*)
-	   for as_base in sh bash ksh sh5; do
-	     as_candidate_shells="$as_candidate_shells $as_dir/$as_base"
-	   done;;
-       esac
-done
-IFS=$as_save_IFS
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
 
 
-      for as_shell in $as_candidate_shells $SHELL; do
-	 # Try only shells that exist, to save several forks.
-	 if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		{ ("$as_shell") 2> /dev/null <<\_ASEOF
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
-esac
-
-fi
-
-
-:
-_ASEOF
-}; then
-  CONFIG_SHELL=$as_shell
-	       as_have_required=yes
-	       if { "$as_shell" 2> /dev/null <<\_ASEOF
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
-esac
-
-fi
-
-
-:
-(as_func_return () {
-  (exit $1)
-}
-as_func_success () {
-  as_func_return 0
-}
-as_func_failure () {
-  as_func_return 1
-}
-as_func_ret_success () {
-  return 0
-}
-as_func_ret_failure () {
-  return 1
-}
-
-exitcode=0
-if as_func_success; then
-  :
-else
-  exitcode=1
-  echo as_func_success failed.
-fi
-
-if as_func_failure; then
-  exitcode=1
-  echo as_func_failure succeeded.
-fi
-
-if as_func_ret_success; then
-  :
-else
-  exitcode=1
-  echo as_func_ret_success failed.
-fi
-
-if as_func_ret_failure; then
-  exitcode=1
-  echo as_func_ret_failure succeeded.
-fi
-
-if ( set x; as_func_ret_success y && test x = "$1" ); then
-  :
-else
-  exitcode=1
-  echo positional parameters were not saved.
-fi
-
-test $exitcode = 0) || { (exit 1); exit 1; }
-
-(
-  as_lineno_1=$LINENO
-  as_lineno_2=$LINENO
-  test "x$as_lineno_1" != "x$as_lineno_2" &&
-  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2") || { (exit 1); exit 1; }
-
-_ASEOF
-}; then
-  break
-fi
-
-fi
-
-      done
-
-      if test "x$CONFIG_SHELL" != x; then
-  for as_var in BASH_ENV ENV
-	do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
-	done
-	export CONFIG_SHELL
-	exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"}
-fi
-
-
-    if test $as_have_required = no; then
-  echo This script requires a shell more modern than all the
-      echo shells that I found on your system.  Please install a
-      echo modern shell, or manually run the script under such a
-      echo shell if you do have one.
-      { (exit 1); exit 1; }
-fi
-
-
-fi
-
-fi
-
-
-
-(eval "as_func_return () {
-  (exit \$1)
-}
-as_func_success () {
-  as_func_return 0
-}
-as_func_failure () {
-  as_func_return 1
-}
-as_func_ret_success () {
-  return 0
-}
-as_func_ret_failure () {
-  return 1
-}
-
-exitcode=0
-if as_func_success; then
-  :
-else
-  exitcode=1
-  echo as_func_success failed.
-fi
-
-if as_func_failure; then
-  exitcode=1
-  echo as_func_failure succeeded.
-fi
-
-if as_func_ret_success; then
-  :
-else
-  exitcode=1
-  echo as_func_ret_success failed.
-fi
-
-if as_func_ret_failure; then
-  exitcode=1
-  echo as_func_ret_failure succeeded.
-fi
-
-if ( set x; as_func_ret_success y && test x = \"\$1\" ); then
-  :
-else
-  exitcode=1
-  echo positional parameters were not saved.
-fi
-
-test \$exitcode = 0") || {
-  echo No shell found that supports shell functions.
-  echo Please tell bug-autoconf@gnu.org about your system,
-  echo including any error possibly output before this message.
-  echo This can help us improve future autoconf versions.
-  echo Configuration will now proceed without shell functions.
-}
-
-
-
-  as_lineno_1=$LINENO
-  as_lineno_2=$LINENO
-  test "x$as_lineno_1" != "x$as_lineno_2" &&
-  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2" || {
-
-  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
-  # uniformly replaced by the line number.  The first 'sed' inserts a
-  # line-number line after each line using $LINENO; the second 'sed'
-  # does the real work.  The second script uses 'N' to pair each
-  # line-number line with the line containing $LINENO, and appends
-  # trailing '-' during substitution so that $LINENO is not a special
-  # case at line end.
-  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
-  # scripts with optimization help from Paolo Bonzini.  Blame Lee
-  # E. McMahon (1931-1989) for sed's syntax.  :-)
-  sed -n '
-    p
-    /[$]LINENO/=
-  ' <$as_myself |
-    sed '
-      s/[$]LINENO.*/&-/
-      t lineno
-      b
-      :lineno
-      N
-      :loop
-      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
-      t loop
-      s/-\n.*//
-    ' >$as_me.lineno &&
-  chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
-   { (exit 1); exit 1; }; }
-
-  # Don't try to exec as it changes $[0], causing all sort of problems
-  # (the dirname of $[0] is not the place where we might find the
-  # original and so on.  Autoconf is especially sensitive to this).
-  . "./$as_me.lineno"
-  # Exit status is that of the last command.
-  exit
-}
-
-
-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
-  as_dirname=dirname
-else
-  as_dirname=false
-fi
-
-ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in
--n*)
-  case `echo 'x\c'` in
-  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  *)   ECHO_C='\c';;
-  esac;;
-*)
-  ECHO_N='-n';;
-esac
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-rm -f conf$$ conf$$.exe conf$$.file
-if test -d conf$$.dir; then
-  rm -f conf$$.dir/conf$$.file
-else
-  rm -f conf$$.dir
-  mkdir conf$$.dir 2>/dev/null
-fi
-if (echo >conf$$.file) 2>/dev/null; then
-  if ln -s conf$$.file conf$$ 2>/dev/null; then
-    as_ln_s='ln -s'
-    # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -p'.
-    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-      as_ln_s='cp -p'
-  elif ln conf$$.file conf$$ 2>/dev/null; then
-    as_ln_s=ln
-  else
-    as_ln_s='cp -p'
-  fi
-else
-  as_ln_s='cp -p'
-fi
-rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
-rmdir conf$$.dir 2>/dev/null
-
-if mkdir -p . 2>/dev/null; then
-  as_mkdir_p=:
-else
-  test -d ./-p && rmdir ./-p
-  as_mkdir_p=false
-fi
-
-if test -x / >/dev/null 2>&1; then
-  as_test_x='test -x'
-else
-  if ls -dL / >/dev/null 2>&1; then
-    as_ls_L_option=L
-  else
-    as_ls_L_option=
-  fi
-  as_test_x='
-    eval sh -c '\''
-      if test -d "$1"; then
-	test -d "$1/.";
-      else
-	case $1 in
-	-*)set "./$1";;
-	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in
-	???[sx]*):;;*)false;;esac;fi
-    '\'' sh
-  '
-fi
-as_executable_p=$as_test_x
-
-# Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
-
-# Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
-
-
-
-exec 7<&0 </dev/null 6>&1
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
 
 # Name of the host.
 # hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
@@ -592,14 +549,14 @@ cross_compiling=no
 subdirs=
 MFLAGS=
 MAKEFLAGS=
-SHELL=${CONFIG_SHELL-/bin/sh}
 
 # Identity of this package.
 PACKAGE_NAME='deal.II'
 PACKAGE_TARNAME='deal.II'
-PACKAGE_VERSION='6.4.pre'
-PACKAGE_STRING='deal.II 6.4.pre'
+PACKAGE_VERSION='7.0.0'
+PACKAGE_STRING='deal.II 7.0.0'
 PACKAGE_BUGREPORT='dealii@dealii.org'
+PACKAGE_URL=''
 
 ac_default_prefix=`pwd`
 ac_func_list=
@@ -797,6 +754,7 @@ bindir
 program_transform_name
 prefix
 exec_prefix
+PACKAGE_URL
 PACKAGE_BUGREPORT
 PACKAGE_STRING
 PACKAGE_VERSION
@@ -959,8 +917,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid feature name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error "invalid feature name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -986,8 +943,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid feature name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error "invalid feature name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1191,8 +1147,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid package name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error "invalid package name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1208,8 +1163,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid package name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error "invalid package name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1239,17 +1193,17 @@ do
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) { $as_echo "$as_me: error: unrecognized option: $ac_option
-Try \`$0 --help' for more information." >&2
-   { (exit 1); exit 1; }; }
+  -*) as_fn_error "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information."
     ;;
 
   *=*)
     ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
     # Reject names that are not valid shell variable names.
-    expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid variable name: $ac_envvar" >&2
-   { (exit 1); exit 1; }; }
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error "invalid variable name: \`$ac_envvar'" ;;
+    esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
 
@@ -1266,15 +1220,13 @@ done
 
 if test -n "$ac_prev"; then
   ac_option=--`echo $ac_prev | sed 's/_/-/g'`
-  { $as_echo "$as_me: error: missing argument to $ac_option" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error "missing argument to $ac_option"
 fi
 
 if test -n "$ac_unrecognized_opts"; then
   case $enable_option_checking in
     no) ;;
-    fatal) { $as_echo "$as_me: error: unrecognized options: $ac_unrecognized_opts" >&2
-   { (exit 1); exit 1; }; } ;;
+    fatal) as_fn_error "unrecognized options: $ac_unrecognized_opts" ;;
     *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
   esac
 fi
@@ -1297,8 +1249,7 @@ do
     [\\/$]* | ?:[\\/]* )  continue;;
     NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
   esac
-  { $as_echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
 # There might be people who depend on the old broken behavior: `$host'
@@ -1328,11 +1279,9 @@ test "$silent" = yes && exec 6>/dev/null
 ac_pwd=`pwd` && test -n "$ac_pwd" &&
 ac_ls_di=`ls -di .` &&
 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
-  { $as_echo "$as_me: error: working directory cannot be determined" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error "working directory cannot be determined"
 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
-  { $as_echo "$as_me: error: pwd does not report name of working directory" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error "pwd does not report name of working directory"
 
 
 # Find the source files, if location was not specified.
@@ -1371,13 +1320,11 @@ else
 fi
 if test ! -r "$srcdir/$ac_unique_file"; then
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
-  { $as_echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot find sources ($ac_unique_file) in $srcdir"
 fi
 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
 ac_abs_confdir=`(
-	cd "$srcdir" && test -r "./$ac_unique_file" || { $as_echo "$as_me: error: $ac_msg" >&2
-   { (exit 1); exit 1; }; }
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error "$ac_msg"
 	pwd)`
 # When building in place, set srcdir=.
 if test "$ac_abs_confdir" = "$ac_pwd"; then
@@ -1403,7 +1350,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures deal.II 6.4.pre to adapt to many kinds of systems.
+\`configure' configures deal.II 7.0.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1469,7 +1416,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of deal.II 6.4.pre:";;
+     short | recursive ) echo "Configuration of deal.II 7.0.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1607,7 +1554,7 @@ Some influential environment variables:
   LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
               nonstandard directory <lib dir>
   LIBS        libraries to pass to the linker, e.g. -l<library>
-  CPPFLAGS    C/C++/Objective C preprocessor flags, e.g. -I<include dir> if
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
               you have headers in a nonstandard directory <include dir>
   CXX         C++ compiler command
   CXXFLAGS    C++ compiler flags
@@ -1679,59 +1626,454 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-deal.II configure 6.4.pre
-generated by GNU Autoconf 2.63
+deal.II configure 7.0.0
+generated by GNU Autoconf 2.65
 
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+Copyright (C) 2009 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
   exit
 fi
-cat >config.log <<_ACEOF
-This file contains any messages produced by compilers while
-running configure, to aid debugging if configure makes a mistake.
-
-It was created by deal.II $as_me 6.4.pre, which was
-generated by GNU Autoconf 2.63.  Invocation command line was
 
-  $ $0 $@
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
 
-_ACEOF
-exec 5>>config.log
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
 {
-cat <<_ASUNAME
-## --------- ##
-## Platform. ##
-## --------- ##
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
 
-hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
-uname -m = `(uname -m) 2>/dev/null || echo unknown`
-uname -r = `(uname -r) 2>/dev/null || echo unknown`
-uname -s = `(uname -s) 2>/dev/null || echo unknown`
-uname -v = `(uname -v) 2>/dev/null || echo unknown`
+	ac_retval=1
+fi
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  as_fn_set_status $ac_retval
 
-/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
-/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+} # ac_fn_c_try_compile
 
-/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
-/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
-/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
-/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
-/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
-/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
-/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+# ac_fn_cxx_try_compile LINENO
+# ----------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
 
-_ASUNAME
+	ac_retval=1
+fi
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  as_fn_set_status $ac_retval
 
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+} # ac_fn_cxx_try_compile
+
+# ac_fn_cxx_try_link LINENO
+# -------------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_link
+
+# ac_fn_cxx_try_run LINENO
+# ------------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_cxx_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_run
+
+# ac_fn_cxx_check_func LINENO FUNC VAR
+# ------------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_cxx_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+
+} # ac_fn_cxx_check_func
+
+# ac_fn_cxx_check_header_compile LINENO HEADER VAR INCLUDES
+# ---------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_cxx_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+
+} # ac_fn_cxx_check_header_compile
+
+# ac_fn_cxx_try_cpp LINENO
+# ------------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } >/dev/null && {
+	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_cpp
+
+# ac_fn_cxx_check_header_mongrel LINENO HEADER VAR INCLUDES
+# ---------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_cxx_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+( cat <<\_ASBOX
+## -------------------------------- ##
+## Report this to dealii@dealii.org ##
+## -------------------------------- ##
+_ASBOX
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+
+} # ac_fn_cxx_check_header_mongrel
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by deal.II $as_me 7.0.0, which was
+generated by GNU Autoconf 2.65.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  $as_echo "PATH: $as_dir"
-done
+    $as_echo "PATH: $as_dir"
+  done
 IFS=$as_save_IFS
 
 } >&5
@@ -1768,9 +2110,9 @@ do
       ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     case $ac_pass in
-    1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
     2)
-      ac_configure_args1="$ac_configure_args1 '$ac_arg'"
+      as_fn_append ac_configure_args1 " '$ac_arg'"
       if test $ac_must_keep_next = true; then
 	ac_must_keep_next=false # Got value, back to normal.
       else
@@ -1786,13 +2128,13 @@ do
 	  -* ) ac_must_keep_next=true ;;
 	esac
       fi
-      ac_configure_args="$ac_configure_args '$ac_arg'"
+      as_fn_append ac_configure_args " '$ac_arg'"
       ;;
     esac
   done
 done
-$as_unset ac_configure_args0 || test "${ac_configure_args0+set}" != set || { ac_configure_args0=; export ac_configure_args0; }
-$as_unset ac_configure_args1 || test "${ac_configure_args1+set}" != set || { ac_configure_args1=; export ac_configure_args1; }
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
 
 # When interrupted or exit'd, cleanup temporary files, and complete
 # config.log.  We remove comments because anyway the quotes in there
@@ -1817,13 +2159,13 @@ _ASBOX
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:$LINENO: WARNING: cache variable $ac_var contains a newline" >&5
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
 $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
       BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
-      *) $as_unset $ac_var ;;
+      *) { eval $ac_var=; unset $ac_var;} ;;
       esac ;;
     esac
   done
@@ -1895,39 +2237,41 @@ _ASBOX
     exit $exit_status
 ' 0
 for ac_signal in 1 2 13 15; do
-  trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
 done
 ac_signal=0
 
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -f -r conftest* confdefs.h
 
+$as_echo "/* confdefs.h */" > confdefs.h
+
 # Predefined preprocessor variables.
 
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_NAME "$PACKAGE_NAME"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_TARNAME "$PACKAGE_TARNAME"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_VERSION "$PACKAGE_VERSION"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_STRING "$PACKAGE_STRING"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
 _ACEOF
 
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
 
 # Let the site file select an alternate cache file if it wants to.
 # Prefer an explicitly selected file to automatically selected ones.
@@ -1945,8 +2289,8 @@ fi
 for ac_site_file in "$ac_site_file1" "$ac_site_file2"
 do
   test "x$ac_site_file" = xNONE && continue
-  if test -r "$ac_site_file"; then
-    { $as_echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
 $as_echo "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file"
@@ -1954,9 +2298,9 @@ $as_echo "$as_me: loading site script $ac_site_file" >&6;}
 done
 
 
-ac_func_list="$ac_func_list gethostname"
-ac_func_list="$ac_func_list getpid"
-ac_header_list="$ac_header_list sys/syscall.h"
+as_fn_append ac_func_list " gethostname"
+as_fn_append ac_func_list " getpid"
+as_fn_append ac_header_list " sys/syscall.h"
 # Check that the precious variables saved in the cache have kept the same
 # value.
 ac_cache_corrupted=false
@@ -1967,11 +2311,11 @@ for ac_var in $ac_precious_vars; do
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { $as_echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
 $as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { $as_echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
 $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
@@ -1981,17 +2325,17 @@ $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
 	ac_old_val_w=`echo x $ac_old_val`
 	ac_new_val_w=`echo x $ac_new_val`
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { $as_echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
 $as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { $as_echo "$as_me:$LINENO: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
 $as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ $as_echo "$as_me:$LINENO:   former value:  \`$ac_old_val'" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
 $as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ $as_echo "$as_me:$LINENO:   current value: \`$ac_new_val'" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
 $as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
       fi;;
   esac
@@ -2003,43 +2347,20 @@ $as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
     esac
     case " $ac_configure_args " in
       *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
-      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
     esac
   fi
 done
 if $ac_cache_corrupted; then
-  { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-  { $as_echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
 $as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
-  { { $as_echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
-$as_echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
 fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -2058,24 +2379,16 @@ ac_config_headers="$ac_config_headers include/deal.II/base/config.h"
 
 ac_aux_dir=
 for ac_dir in contrib/config "$srcdir"/contrib/config; do
-  if test -f "$ac_dir/install-sh"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/install-sh -c"
-    break
-  elif test -f "$ac_dir/install.sh"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/install.sh -c"
-    break
-  elif test -f "$ac_dir/shtool"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/shtool install -c"
-    break
-  fi
+  for ac_t in install-sh install.sh shtool; do
+    if test -f "$ac_dir/$ac_t"; then
+      ac_aux_dir=$ac_dir
+      ac_install_sh="$ac_aux_dir/$ac_t -c"
+      break 2
+    fi
+  done
 done
 if test -z "$ac_aux_dir"; then
-  { { $as_echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in contrib/config \"$srcdir\"/contrib/config" >&5
-$as_echo "$as_me: error: cannot find install-sh or install.sh in contrib/config \"$srcdir\"/contrib/config" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot find install-sh, install.sh, or shtool in contrib/config \"$srcdir\"/contrib/config" "$LINENO" 5
 fi
 
 # These three variables are undocumented and unsupported,
@@ -2113,7 +2426,7 @@ cat >>confdefs.h <<_ACEOF
 #define DEAL_II_PATH "$DEAL_II_PATH"
 _ACEOF
 
-{ $as_echo "$as_me:$LINENO: result: Configuring deal.II version $PACKAGE_VERSION" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Configuring deal.II version $PACKAGE_VERSION" >&5
 $as_echo "Configuring deal.II version $PACKAGE_VERSION" >&6; }
 
 
@@ -2124,35 +2437,27 @@ DEAL2_DIR="$DEAL_II_PATH"
 
 # Make sure we can run config.sub.
 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
-  { { $as_echo "$as_me:$LINENO: error: cannot run $SHELL $ac_aux_dir/config.sub" >&5
-$as_echo "$as_me: error: cannot run $SHELL $ac_aux_dir/config.sub" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
 
-{ $as_echo "$as_me:$LINENO: checking build system type" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
 $as_echo_n "checking build system type... " >&6; }
-if test "${ac_cv_build+set}" = set; then
+if test "${ac_cv_build+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
   ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
 test "x$ac_build_alias" = x &&
-  { { $as_echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
-$as_echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot guess build type; you must specify one" "$LINENO" 5
 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
-  { { $as_echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&5
-$as_echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_build" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
 $as_echo "$ac_cv_build" >&6; }
 case $ac_cv_build in
 *-*-*) ;;
-*) { { $as_echo "$as_me:$LINENO: error: invalid value of canonical build" >&5
-$as_echo "$as_me: error: invalid value of canonical build" >&2;}
-   { (exit 1); exit 1; }; };;
+*) as_fn_error "invalid value of canonical build" "$LINENO" 5;;
 esac
 build=$ac_cv_build
 ac_save_IFS=$IFS; IFS='-'
@@ -2168,28 +2473,24 @@ IFS=$ac_save_IFS
 case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
 
 
-{ $as_echo "$as_me:$LINENO: checking host system type" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
 $as_echo_n "checking host system type... " >&6; }
-if test "${ac_cv_host+set}" = set; then
+if test "${ac_cv_host+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
   ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
-    { { $as_echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&5
-$as_echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
 fi
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_host" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
 $as_echo "$ac_cv_host" >&6; }
 case $ac_cv_host in
 *-*-*) ;;
-*) { { $as_echo "$as_me:$LINENO: error: invalid value of canonical host" >&5
-$as_echo "$as_me: error: invalid value of canonical host" >&2;}
-   { (exit 1); exit 1; }; };;
+*) as_fn_error "invalid value of canonical host" "$LINENO" 5;;
 esac
 host=$ac_cv_host
 ac_save_IFS=$IFS; IFS='-'
@@ -2205,28 +2506,24 @@ IFS=$ac_save_IFS
 case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
 
 
-{ $as_echo "$as_me:$LINENO: checking target system type" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking target system type" >&5
 $as_echo_n "checking target system type... " >&6; }
-if test "${ac_cv_target+set}" = set; then
+if test "${ac_cv_target+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test "x$target_alias" = x; then
   ac_cv_target=$ac_cv_host
 else
   ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
-    { { $as_echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $target_alias failed" >&5
-$as_echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $target_alias failed" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "$SHELL $ac_aux_dir/config.sub $target_alias failed" "$LINENO" 5
 fi
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_target" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_target" >&5
 $as_echo "$ac_cv_target" >&6; }
 case $ac_cv_target in
 *-*-*) ;;
-*) { { $as_echo "$as_me:$LINENO: error: invalid value of canonical target" >&5
-$as_echo "$as_me: error: invalid value of canonical target" >&2;}
-   { (exit 1); exit 1; }; };;
+*) as_fn_error "invalid value of canonical target" "$LINENO" 5;;
 esac
 target=$ac_cv_target
 ac_save_IFS=$IFS; IFS='-'
@@ -2261,24 +2558,24 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 
 
-{ $as_echo "$as_me:$LINENO: result: " >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
 $as_echo "" >&6; }
-{ $as_echo "$as_me:$LINENO: result: ---------------- configuring C/C++ compilers ----------------" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ---------------- configuring C/C++ compilers ----------------" >&5
 $as_echo "---------------- configuring C/C++ compilers ----------------" >&6; }
 
 
 # Check whether --enable-mpi was given.
-if test "${enable_mpi+set}" = set; then
+if test "${enable_mpi+set}" = set; then :
   enableval=$enable_mpi;
-	  { $as_echo "$as_me:$LINENO: checking whether to explicitly use MPI" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to explicitly use MPI" >&5
 $as_echo_n "checking whether to explicitly use MPI... " >&6; }
 	  if test "x$enableval" = "xyes" ; then
-	    { $as_echo "$as_me:$LINENO: result: yes" >&5
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	    if test "x$CXX" = "x" ; then CXX=mpiCC ; fi
 	    if test "x$CC" = "x" ; then CC=mpicc ; fi
 	  else
-	    { $as_echo "$as_me:$LINENO: result: no" >&5
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 	  fi
 fi
@@ -2293,9 +2590,9 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2306,24 +2603,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2333,9 +2630,9 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -2346,24 +2643,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_ac_ct_CC="gcc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
 $as_echo "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2372,7 +2669,7 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
@@ -2386,9 +2683,9 @@ if test -z "$CC"; then
           if test -n "$ac_tool_prefix"; then
     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2399,24 +2696,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2426,9 +2723,9 @@ fi
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2440,18 +2737,18 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
        ac_prog_rejected=yes
        continue
      fi
     ac_cv_prog_CC="cc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 if test $ac_prog_rejected = yes; then
@@ -2470,10 +2767,10 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2485,9 +2782,9 @@ if test -z "$CC"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2498,24 +2795,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2529,9 +2826,9 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -2542,24 +2839,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
 $as_echo "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2572,7 +2869,7 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
@@ -2583,57 +2880,37 @@ fi
 fi
 
 
-test -z "$CC" && { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: no acceptable C compiler found in \$PATH
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+as_fn_error "no acceptable C compiler found in \$PATH
+See \`config.log' for more details." "$LINENO" 5; }
 
 # Provide some information about the compiler.
-$as_echo "$as_me:$LINENO: checking for C compiler version" >&5
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
-{ (ac_try="$ac_compiler --version >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler --version >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -v >&5"
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -v >&5") 2>&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -V >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -V >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
 
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2649,8 +2926,8 @@ ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-{ $as_echo "$as_me:$LINENO: checking for C compiler default output file name" >&5
-$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
 ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
 
 # The possible output files:
@@ -2666,17 +2943,17 @@ do
 done
 rm -f $ac_rmfiles
 
-if { (ac_try="$ac_link_default"
+if { { ac_try="$ac_link_default"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
   (eval "$ac_link_default") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
   # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
 # So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
@@ -2693,7 +2970,7 @@ do
 	# certainly right.
 	break;;
     *.* )
-        if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
 	then :; else
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
@@ -2712,84 +2989,42 @@ test "$ac_cv_exeext" = no && ac_cv_exeext=
 else
   ac_file=''
 fi
-
-{ $as_echo "$as_me:$LINENO: result: $ac_file" >&5
-$as_echo "$ac_file" >&6; }
-if test -z "$ac_file"; then
-  $as_echo "$as_me: failed program was:" >&5
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: C compiler cannot create executables
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: C compiler cannot create executables
-See \`config.log' for more details." >&2;}
-   { (exit 77); exit 77; }; }; }
+{ as_fn_set_status 77
+as_fn_error "C compiler cannot create executables
+See \`config.log' for more details." "$LINENO" 5; }; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
 fi
-
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
 ac_exeext=$ac_cv_exeext
 
-# Check that the compiler produces executables we can run.  If not, either
-# the compiler is broken, or we cross compile.
-{ $as_echo "$as_me:$LINENO: checking whether the C compiler works" >&5
-$as_echo_n "checking whether the C compiler works... " >&6; }
-# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
-# If not cross compiling, check that we can run a simple program.
-if test "$cross_compiling" != yes; then
-  if { ac_try='./$ac_file'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-    cross_compiling=no
-  else
-    if test "$cross_compiling" = maybe; then
-	cross_compiling=yes
-    else
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
-    fi
-  fi
-fi
-{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
 rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
 ac_clean_files=$ac_clean_files_save
-# Check that the compiler produces executables we can run.  If not, either
-# the compiler is broken, or we cross compile.
-{ $as_echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
-$as_echo_n "checking whether we are cross compiling... " >&6; }
-{ $as_echo "$as_me:$LINENO: result: $cross_compiling" >&5
-$as_echo "$cross_compiling" >&6; }
-
-{ $as_echo "$as_me:$LINENO: checking for suffix of executables" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
 $as_echo_n "checking for suffix of executables... " >&6; }
-if { (ac_try="$ac_link"
+if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
   # If both `conftest.exe' and `conftest' are `present' (well, observable)
 # catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
 # work properly (i.e., refer to `conftest.exe'), while it won't with
@@ -2804,32 +3039,83 @@ for ac_file in conftest.exe conftest conftest.*; do
   esac
 done
 else
-  { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+as_fn_error "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details." "$LINENO" 5; }
 fi
-
-rm -f conftest$ac_cv_exeext
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
 $as_echo "$ac_cv_exeext" >&6; }
 
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
 ac_exeext=$EXEEXT
-{ $as_echo "$as_me:$LINENO: checking for suffix of object files" >&5
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details." "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 $as_echo_n "checking for suffix of object files... " >&6; }
-if test "${ac_cv_objext+set}" = set; then
+if test "${ac_cv_objext+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2841,17 +3127,17 @@ main ()
 }
 _ACEOF
 rm -f conftest.o conftest.obj
-if { (ac_try="$ac_compile"
+if { { ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
   for ac_file in conftest.o conftest.obj conftest.*; do
   test -f "$ac_file" || continue;
   case $ac_file in
@@ -2864,31 +3150,23 @@ else
   $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot compute suffix of object files: cannot compile
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+as_fn_error "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details." "$LINENO" 5; }
 fi
-
 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
 $as_echo "$ac_cv_objext" >&6; }
 OBJEXT=$ac_cv_objext
 ac_objext=$OBJEXT
-{ $as_echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
 $as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if test "${ac_cv_c_compiler_gnu+set}" = set; then
+if test "${ac_cv_c_compiler_gnu+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2902,37 +3180,16 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_compiler_gnu=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_compiler_gnu=no
+  ac_compiler_gnu=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
 $as_echo "$ac_cv_c_compiler_gnu" >&6; }
 if test $ac_compiler_gnu = yes; then
   GCC=yes
@@ -2941,20 +3198,16 @@ else
 fi
 ac_test_CFLAGS=${CFLAGS+set}
 ac_save_CFLAGS=$CFLAGS
-{ $as_echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 $as_echo_n "checking whether $CC accepts -g... " >&6; }
-if test "${ac_cv_prog_cc_g+set}" = set; then
+if test "${ac_cv_prog_cc_g+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
-   cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2965,35 +3218,11 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_g=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	CFLAGS=""
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3004,36 +3233,12 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_compile "$LINENO"; then :
 
-	ac_c_werror_flag=$ac_save_c_werror_flag
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
-	 cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3044,42 +3249,17 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_g=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    ac_c_werror_flag=$ac_save_c_werror_flag
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
 $as_echo "$ac_cv_prog_cc_g" >&6; }
 if test "$ac_test_CFLAGS" = set; then
   CFLAGS=$ac_save_CFLAGS
@@ -3096,18 +3276,14 @@ else
     CFLAGS=
   fi
 fi
-{ $as_echo "$as_me:$LINENO: checking for $CC option to accept ISO C89" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
 $as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if test "${ac_cv_prog_cc_c89+set}" = set; then
+if test "${ac_cv_prog_cc_c89+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_prog_cc_c89=no
 ac_save_CC=$CC
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdarg.h>
 #include <stdio.h>
@@ -3164,32 +3340,9 @@ for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
 	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 do
   CC="$ac_save_CC $ac_arg"
-  rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+  if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_c89=$ac_arg
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
@@ -3200,17 +3353,19 @@ fi
 # AC_CACHE_VAL
 case "x$ac_cv_prog_cc_c89" in
   x)
-    { $as_echo "$as_me:$LINENO: result: none needed" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 $as_echo "none needed" >&6; } ;;
   xno)
-    { $as_echo "$as_me:$LINENO: result: unsupported" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 $as_echo "unsupported" >&6; } ;;
   *)
     CC="$CC $ac_cv_prog_cc_c89"
-    { $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_c89" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
 $as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
 esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
 
+fi
 
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -3234,9 +3389,9 @@ CFLAGS="$OLDCFLAGS"
 
   # Extract the first word of "$testprog", so it can be a program name with args.
 set dummy $testprog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_CC+set}" = set; then
+if test "${ac_cv_path_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $CC in
@@ -3249,14 +3404,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_CC="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -3264,10 +3419,10 @@ esac
 fi
 CC=$ac_cv_path_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -3290,9 +3445,9 @@ if test -z "$CXX"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CXX+set}" = set; then
+if test "${ac_cv_prog_CXX+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CXX"; then
@@ -3303,24 +3458,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CXX=$ac_cv_prog_CXX
 if test -n "$CXX"; then
-  { $as_echo "$as_me:$LINENO: result: $CXX" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
 $as_echo "$CXX" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -3334,9 +3489,9 @@ if test -z "$CXX"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
+if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CXX"; then
@@ -3347,24 +3502,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_ac_ct_CXX="$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
 if test -n "$ac_ct_CXX"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
 $as_echo "$ac_ct_CXX" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -3377,7 +3532,7 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
@@ -3388,53 +3543,36 @@ fi
   fi
 fi
 # Provide some information about the compiler.
-$as_echo "$as_me:$LINENO: checking for C++ compiler version" >&5
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
-{ (ac_try="$ac_compiler --version >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler --version >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -v >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -v >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -V >&5"
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -V >&5") 2>&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
 
-{ $as_echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
 $as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
-if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
+if test "${ac_cv_cxx_compiler_gnu+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3448,37 +3586,16 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_compiler_gnu=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_compiler_gnu=no
+  ac_compiler_gnu=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
 $as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
 if test $ac_compiler_gnu = yes; then
   GXX=yes
@@ -3487,20 +3604,16 @@ else
 fi
 ac_test_CXXFLAGS=${CXXFLAGS+set}
 ac_save_CXXFLAGS=$CXXFLAGS
-{ $as_echo "$as_me:$LINENO: checking whether $CXX accepts -g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
 $as_echo_n "checking whether $CXX accepts -g... " >&6; }
-if test "${ac_cv_prog_cxx_g+set}" = set; then
+if test "${ac_cv_prog_cxx_g+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_save_cxx_werror_flag=$ac_cxx_werror_flag
    ac_cxx_werror_flag=yes
    ac_cv_prog_cxx_g=no
    CXXFLAGS="-g"
-   cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3511,35 +3624,11 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_prog_cxx_g=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	CXXFLAGS=""
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  CXXFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3550,36 +3639,12 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+else
+  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
 	 CXXFLAGS="-g"
-	 cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3590,42 +3655,17 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_prog_cxx_g=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    ac_cxx_werror_flag=$ac_save_cxx_werror_flag
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cxx_g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
 $as_echo "$ac_cv_prog_cxx_g" >&6; }
 if test "$ac_test_CXXFLAGS" = set; then
   CXXFLAGS=$ac_save_CXXFLAGS
@@ -3664,9 +3704,9 @@ CXXFLAGS="$OLDCXXFLAGS"
 
   # Extract the first word of "$testprog", so it can be a program name with args.
 set dummy $testprog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_CXX+set}" = set; then
+if test "${ac_cv_path_CXX+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $CXX in
@@ -3679,14 +3719,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_CXX="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -3694,10 +3734,10 @@ esac
 fi
 CXX=$ac_cv_path_CXX
 if test -n "$CXX"; then
-  { $as_echo "$as_me:$LINENO: result: $CXX" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
 $as_echo "$CXX" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -3728,7 +3768,7 @@ fi
     GXX_VERSION=gcc`echo $full_version | perl -pi -e 's/(\d\.\d).*/\1/g;'`
     GXX_VERSION_DETAILED=gcc$full_version
 
-    { $as_echo "$as_me:$LINENO: result: C++ compiler is $GXX_VERSION (subversion $GXX_VERSION_DETAILED)" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is $GXX_VERSION (subversion $GXX_VERSION_DETAILED)" >&5
 $as_echo "C++ compiler is $GXX_VERSION (subversion $GXX_VERSION_DETAILED)" >&6; }
 
 
@@ -3736,7 +3776,7 @@ $as_echo "C++ compiler is $GXX_VERSION (subversion $GXX_VERSION_DETAILED)" >&6;
 
                     is_ibm_xlc="`($CXX -qversion 2>&1) | grep IBM`"
     if test "x$is_ibm_xlc" != "x"  ; then
-                        { $as_echo "$as_me:$LINENO: result: C++ compiler is IBM xlC" >&5
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is IBM xlC" >&5
 $as_echo "C++ compiler is IBM xlC" >&6; }
       GXX_BRAND=IBM
       GXX_VERSION=ibm_xlc
@@ -3748,37 +3788,33 @@ $as_echo "C++ compiler is IBM xlC" >&6; }
         GXX_BRAND=MIPSpro
         case "$mips_pro" in
           *7.0* | *7.1* | *7.2* | *7.3*)
-                                    { $as_echo "$as_me:$LINENO: result: C++ compiler is $mips_pro" >&5
+                                    { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is $mips_pro" >&5
 $as_echo "C++ compiler is $mips_pro" >&6; }
-            { { $as_echo "$as_me:$LINENO: error: This compiler is not supported" >&5
-$as_echo "$as_me: error: This compiler is not supported" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "This compiler is not supported" "$LINENO" 5
             GXX_VERSION=MIPSpro7.3
             GXX_VERSION_DETAILED="$GXX_VERSION"
             ;;
           *7.4)
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is MIPSpro compiler 7.4" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is MIPSpro compiler 7.4" >&5
 $as_echo "C++ compiler is MIPSpro compiler 7.4" >&6; }
-            { { $as_echo "$as_me:$LINENO: error: This compiler is not supported. Use MIPSPro compiler 7.4x" >&5
-$as_echo "$as_me: error: This compiler is not supported. Use MIPSPro compiler 7.4x" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "This compiler is not supported. Use MIPSPro compiler 7.4x" "$LINENO" 5
             GXX_VERSION=MIPSpro7.4
             GXX_VERSION_DETAILED="$GXX_VERSION"
             ;;
           *7.41* | *7.42* | *7.43* | *7.44*)
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is MIPSpro compiler 7.4x" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is MIPSpro compiler 7.4x" >&5
 $as_echo "C++ compiler is MIPSpro compiler 7.4x" >&6; }
             GXX_VERSION=MIPSpro7.4x
             GXX_VERSION_DETAILED="$GXX_VERSION"
             ;;
           *"7.5"*)
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is MIPSpro compiler 7.5" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is MIPSpro compiler 7.5" >&5
 $as_echo "C++ compiler is MIPSpro compiler 7.5" >&6; }
             GXX_VERSION=MIPSpro7.5
             GXX_VERSION_DETAILED="$GXX_VERSION"
             ;;
           *)
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is unknown version but accepted MIPSpro compiler version" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is unknown version but accepted MIPSpro compiler version" >&5
 $as_echo "C++ compiler is unknown version but accepted MIPSpro compiler version" >&6; }
             GXX_VERSION=MIPSpro-other
             GXX_VERSION_DETAILED="$GXX_VERSION"
@@ -3803,39 +3839,39 @@ $as_echo "C++ compiler is unknown version but accepted MIPSpro compiler version"
 	  version10="`echo $version_string | grep 'Version 10'`"
 	  version11="`echo $version_string | grep 'Version 11'`"
           if test "x$version5" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is icc-5" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is icc-5" >&5
 $as_echo "C++ compiler is icc-5" >&6; }
             GXX_VERSION=intel_icc5
           else if test "x$version6" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is icc-6" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is icc-6" >&5
 $as_echo "C++ compiler is icc-6" >&6; }
             GXX_VERSION=intel_icc6
           else if test "x$version7" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is icc-7" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is icc-7" >&5
 $as_echo "C++ compiler is icc-7" >&6; }
             GXX_VERSION=intel_icc7
           else if test "x$version8" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is icc-8" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is icc-8" >&5
 $as_echo "C++ compiler is icc-8" >&6; }
             GXX_VERSION=intel_icc8
           else if test "x$version9" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is icc-9" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is icc-9" >&5
 $as_echo "C++ compiler is icc-9" >&6; }
             GXX_VERSION=intel_icc9
           else if test "x$version10" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is icc-10" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is icc-10" >&5
 $as_echo "C++ compiler is icc-10" >&6; }
             GXX_VERSION=intel_icc10
           else if test "x$version11" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is icc-11" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is icc-11" >&5
 $as_echo "C++ compiler is icc-11" >&6; }
             GXX_VERSION=intel_icc11
           else if test "x$version12" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is icc-12" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is icc-12" >&5
 $as_echo "C++ compiler is icc-12" >&6; }
             GXX_VERSION=intel_icc12
           else
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is icc" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is icc" >&5
 $as_echo "C++ compiler is icc" >&6; }
             GXX_VERSION=intel_icc
           fi fi fi fi fi fi fi fi
@@ -3844,7 +3880,7 @@ $as_echo "C++ compiler is icc" >&6; }
 
                     is_dec_cxx="`($CXX -V 2>&1) | grep 'Compaq C++'`"
           if test "x$is_dec_cxx" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C++ compiler is Compaq-cxx" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is Compaq-cxx" >&5
 $as_echo "C++ compiler is Compaq-cxx" >&6; }
             GXX_BRAND=Compaq
             GXX_VERSION=compaq_cxx
@@ -3854,7 +3890,7 @@ $as_echo "C++ compiler is Compaq-cxx" >&6; }
       	                is_sun_cc_1="`($CXX -V 2>&1) | grep 'Sun WorkShop'`"
             is_sun_cc_2="`($CXX -V 2>&1) | grep 'Sun C++'`"
             if test "x$is_sun_cc_1$is_sun_cc_2" != "x" ; then
-              { $as_echo "$as_me:$LINENO: result: C++ compiler is Sun Workshop compiler" >&5
+              { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is Sun Workshop compiler" >&5
 $as_echo "C++ compiler is Sun Workshop compiler" >&6; }
               GXX_BRAND=SunWorkshop
               GXX_VERSION=sun_workshop
@@ -3863,7 +3899,7 @@ $as_echo "C++ compiler is Sun Workshop compiler" >&6; }
 
   	                    is_sun_forte_cc="`($CXX -V 2>&1) | grep 'Forte'`"
               if test "x$is_sun_forte_cc" != "x" ; then
-                { $as_echo "$as_me:$LINENO: result: C++ compiler is Sun Forte compiler" >&5
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is Sun Forte compiler" >&5
 $as_echo "C++ compiler is Sun Forte compiler" >&6; }
                 GXX_BRAND=SunForte
                 GXX_VERSION=sun_forte
@@ -3877,13 +3913,13 @@ $as_echo "C++ compiler is Sun Forte compiler" >&6; }
 		  GXX_BRAND=PortlandGroup
     		  GXX_VERSION=pgCC`echo $full_version | perl -pi -e 's/(\d\.\d).*/\1/g;'`
     		  GXX_VERSION_DETAILED=pgCC"$full_version"
-  	          { $as_echo "$as_me:$LINENO: result: C++ compiler is Portland Group C++ $full_version" >&5
+  	          { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is Portland Group C++ $full_version" >&5
 $as_echo "C++ compiler is Portland Group C++ $full_version" >&6; }
                 else
 
   	            	          is_aCC="`($CXX -V 2>&1) | grep 'aCC'`"
   	          if test "x$is_aCC" != "x" ; then
-  	            { $as_echo "$as_me:$LINENO: result: C++ compiler is HP aCC" >&5
+  	            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is HP aCC" >&5
 $as_echo "C++ compiler is HP aCC" >&6; }
   	            GXX_BRAND=HP
                     GXX_VERSION=hp_aCC
@@ -3892,7 +3928,7 @@ $as_echo "C++ compiler is HP aCC" >&6; }
 
   	              	            is_bcc="`($CXX -h 2>&1) | grep 'Borland'`"
   	            if test "x$is_bcc" != "x" ; then
-  	              { $as_echo "$as_me:$LINENO: result: C++ compiler is Borland C++" >&5
+  	              { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is Borland C++" >&5
 $as_echo "C++ compiler is Borland C++" >&6; }
   	              GXX_BRAND=Borland
 		      GXX_VERSION=borland_bcc
@@ -3902,7 +3938,7 @@ $as_echo "C++ compiler is Borland C++" >&6; }
   	              		      	              	 	      	              	                                                                                  	              is_kai_cc="`($CXX --version 2>&1) | grep 'KAI C++'`"
   	              is_kai_cc="$is_kai_cc`($CXX -v 2>&1) | grep /KCC/`"
   	              if test "x$is_kai_cc" != "x" ; then
-  	                { $as_echo "$as_me:$LINENO: result: C++ compiler is KAI C++" >&5
+  	                { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is KAI C++" >&5
 $as_echo "C++ compiler is KAI C++" >&6; }
   	                GXX_BRAND=KAI
 			GXX_VERSION=kai_cc
@@ -3911,13 +3947,13 @@ $as_echo "C++ compiler is KAI C++" >&6; }
 
                                                 is_pathscale="`($CXX -v 2>&1) | grep PathScale`"
                         if test "x$is_pathscale" != "x" ; then
-                          { $as_echo "$as_me:$LINENO: result: C++ compiler is PathScale C++" >&5
+                          { $as_echo "$as_me:${as_lineno-$LINENO}: result: C++ compiler is PathScale C++" >&5
 $as_echo "C++ compiler is PathScale C++" >&6; }
   	                  GXX_BRAND=PathScale
 			  GXX_VERSION=pathscale_cc
    	                  GXX_VERSION_DETAILED="$GXX_VERSION"
                         else
-                                                    { $as_echo "$as_me:$LINENO: result: Unrecognized C++ compiler -- Try to go ahead and get help from dealii@dealii.org" >&5
+                                                    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Unrecognized C++ compiler -- Try to go ahead and get help from dealii@dealii.org" >&5
 $as_echo "Unrecognized C++ compiler -- Try to go ahead and get help from dealii@dealii.org" >&6; }
                           GXX_BRAND=Unknown
 			  GXX_VERSION=unknown_cc
@@ -3937,13 +3973,9 @@ $as_echo "Unrecognized C++ compiler -- Try to go ahead and get help from dealii@
 
 
 
-  { $as_echo "$as_me:$LINENO: checking if the compiler is built for MPI" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the compiler is built for MPI" >&5
 $as_echo_n "checking if the compiler is built for MPI... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
           #include <mpi.h>
@@ -3958,52 +3990,25 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
 
-          { $as_echo "$as_me:$LINENO: result: yes" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_COMPILER_SUPPORTS_MPI 1
-_ACEOF
+$as_echo "#define DEAL_II_COMPILER_SUPPORTS_MPI 1" >>confdefs.h
 
 
 	  DEAL_II_COMPILER_SUPPORTS_MPI=1
           DEAL_II_USE_MPI=yes
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-          { $as_echo "$as_me:$LINENO: result: no" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 
 
       if test "x$CXXFLAGSG" = "x" ; then
@@ -4026,13 +4031,9 @@ rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
         OLD_CXXFLAGS="$CXXFLAGS"
     CXXFLAGS=-std=c++0x
 
-    { $as_echo "$as_me:$LINENO: checking whether compiler has a flag to support C++1x" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler has a flag to support C++1x" >&5
 $as_echo_n "checking whether compiler has a flag to support C++1x... " >&6; }
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4043,40 +4044,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-         { $as_echo "$as_me:$LINENO: result: yes" >&5
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
          test_cxx1x=yes
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-         { $as_echo "$as_me:$LINENO: result: no" >&5
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
          test_cxx1x=no
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     CXXFLAGS="${OLD_CXXFLAGS}"
 
@@ -4087,13 +4067,9 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
   all_cxx1x_available=yes
 
-  { $as_echo "$as_me:$LINENO: checking for std::array" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::array" >&5
 $as_echo_n "checking for std::array... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <array>
 int
@@ -4104,44 +4080,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-   { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	 { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }; all_cxx1x_available=no
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking for std::condition_variable" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::condition_variable" >&5
 $as_echo_n "checking for std::condition_variable... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <condition_variable>
 int
@@ -4152,44 +4103,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-   { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	 { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }; all_cxx1x_available=no
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking for std::function and std::bind" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::function and std::bind" >&5
 $as_echo_n "checking for std::function and std::bind... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <functional>
         void f(int, double);
@@ -4202,44 +4128,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-   { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	 { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }; all_cxx1x_available=no
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-    { $as_echo "$as_me:$LINENO: checking for std::bind works with rvalues" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::bind works with rvalues" >&5
 $as_echo_n "checking for std::bind works with rvalues... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <functional>
         void f(int);
@@ -4253,44 +4154,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-   { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	 { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }; all_cxx1x_available=no
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking for std::shared_ptr" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::shared_ptr" >&5
 $as_echo_n "checking for std::shared_ptr... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <memory>
 int
@@ -4301,44 +4177,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-   { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	 { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }; all_cxx1x_available=no
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking for std::thread" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::thread" >&5
 $as_echo_n "checking for std::thread... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <thread>
         void f(int);
@@ -4350,105 +4201,46 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-   { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	 { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }; all_cxx1x_available=no
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-        { $as_echo "$as_me:$LINENO: checking whether std::thread actually works" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether std::thread actually works" >&5
 $as_echo_n "checking whether std::thread actually works... " >&6; }
-  if test "$cross_compiling" = yes; then
-  { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: cannot run test program while cross compiling
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot run test program while cross compiling
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+as_fn_error "cannot run test program while cross compiling
+See \`config.log' for more details." "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <thread>
         void f(int) {}
         int main() { std::thread t(f,1); t.join(); }
 _ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-   { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_run "$LINENO"; then :
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-$as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
- { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }; all_cxx1x_available=no
 
 fi
-rm -rf conftest.dSYM
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
 
-
-  { $as_echo "$as_me:$LINENO: checking for std::mutex" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::mutex" >&5
 $as_echo_n "checking for std::mutex... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <mutex>
 int
@@ -4459,44 +4251,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-   { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	 { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }; all_cxx1x_available=no
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking for std::tuple" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::tuple" >&5
 $as_echo_n "checking for std::tuple... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <tuple>
 int
@@ -4507,68 +4274,41 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-   { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	 { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }; all_cxx1x_available=no
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
   CXXFLAGS="${OLD_CXXFLAGS}"
 
-  { $as_echo "$as_me:$LINENO: checking whether C++1x support is complete enough" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++1x support is complete enough" >&5
 $as_echo_n "checking whether C++1x support is complete enough... " >&6; }
   if test "x$all_cxx1x_available" = "xyes" ; then
-    { $as_echo "$as_me:$LINENO: result: yes" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
     CXXFLAGSG="$CXXFLAGSG "-std=c++0x""
     CXXFLAGSO="$CXXFLAGSO "-std=c++0x""
 
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_CAN_USE_CXX1X 1
-_ACEOF
+$as_echo "#define DEAL_II_CAN_USE_CXX1X 1" >>confdefs.h
 
   else
-    { $as_echo "$as_me:$LINENO: result: no" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
   fi
 
     fi
 
                     CXXFLAGS="-Wreturn-type -Werror"
-    { $as_echo "$as_me:$LINENO: checking whether qualifiers in return types lead to a warning" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether qualifiers in return types lead to a warning" >&5
 $as_echo_n "checking whether qualifiers in return types lead to a warning... " >&6; }
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
             const double foo() { return 1.; }
@@ -4581,39 +4321,18 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-            { $as_echo "$as_me:$LINENO: result: no" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-            { $as_echo "$as_me:$LINENO: result: yes" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
             CXXFLAGSG="$CXXFLAGSG -Wno-return-type"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
                     case "$target" in
@@ -4648,7 +4367,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     esac
 
 
-  { $as_echo "$as_me:$LINENO: checking for std::advance warning" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::advance warning" >&5
 $as_echo_n "checking for std::advance warning... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -4657,11 +4376,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG -Werror"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <map>
@@ -4679,41 +4394,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	  	  { $as_echo "$as_me:$LINENO: result: no" >&5
+	  	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
           DEAL_II_ADVANCE_WARNING=no
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	  { $as_echo "$as_me:$LINENO: result: yes" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
           DEAL_II_ADVANCE_WARNING=yes
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
     if test "x$DEAL_II_ADVANCE_WARNING" = "xyes" ; then
@@ -4721,14 +4415,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     fi
 
     if test "x$DEAL_II_USE_MPI" = "xyes" ; then
-      { $as_echo "$as_me:$LINENO: checking whether MPI headers have unused parameters" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether MPI headers have unused parameters" >&5
 $as_echo_n "checking whether MPI headers have unused parameters... " >&6; }
       CXXFLAGS="-Wunused-parameter -Werror"
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
           #include <mpi.h>
@@ -4741,40 +4431,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-  	  { $as_echo "$as_me:$LINENO: result: no" >&5
+  	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-          { $as_echo "$as_me:$LINENO: result: yes" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
           CXXFLAGSG="$CXXFLAGSG -Wno-unused-parameter"
           CXXFLAGSO="$CXXFLAGSO -Wno-unused-parameter"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     fi
 
@@ -4783,13 +4452,9 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
         OLD_CXXFLAGS="$CXXFLAGS"
         CXXFLAGS=-Wno-long-double
 
-        { $as_echo "$as_me:$LINENO: checking whether we can use -Wno-long-double" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we can use -Wno-long-double" >&5
 $as_echo_n "checking whether we can use -Wno-long-double... " >&6; }
-        cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4800,40 +4465,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-            { $as_echo "$as_me:$LINENO: result: yes" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	    CXXFLAGSG="$CXXFLAGSG -Wno-long-double"
 	    CXXFLAGSO="$CXXFLAGSO -Wno-long-double"
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-            { $as_echo "$as_me:$LINENO: result: no" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
         if test "`/usr/sbin/sysctl -n hw.optional.x86_64`" = "1" ; then
@@ -4847,14 +4491,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
         ;;
 
                               *dec-osf*)
-        { $as_echo "$as_me:$LINENO: checking for preprocessor warning with cuserid" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for preprocessor warning with cuserid" >&5
 $as_echo_n "checking for preprocessor warning with cuserid... " >&6; }
 	CXXFLAGS="$CXXFLAGSG -Werror"
-	cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #	    include <stdio.h>
@@ -4868,40 +4508,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-            { $as_echo "$as_me:$LINENO: result: no" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-            { $as_echo "$as_me:$LINENO: result: yes" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
             CXXFLAGSG="$CXXFLAGSG -Wp,-w"
             CXXFLAGSO="$CXXFLAGSO -Wp,-w"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
         ;;
     esac
@@ -4970,7 +4589,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
           esac
 
 
-  { $as_echo "$as_me:$LINENO: checking whether -wd1572 is allowed" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -wd1572 is allowed" >&5
 $as_echo_n "checking whether -wd1572 is allowed... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -4979,11 +4598,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG -wd1572"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4994,39 +4609,18 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	CXXFLAGSG="$CXXFLAGSG -wd1572"
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
@@ -5084,13 +4678,9 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
           LDFLAGSPIC="-G"
 
 	  	  CXXFLAGS="$CXXFLAGSG -library=stlport4"
-	  { $as_echo "$as_me:$LINENO: checking whether -library=stlport4 works" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -library=stlport4 works" >&5
 $as_echo_n "checking whether -library=stlport4 works... " >&6; }
-	  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+	  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 
@@ -5104,40 +4694,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-              { $as_echo "$as_me:$LINENO: result: yes" >&5
+              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
               CXXFLAGSG="$CXXFLAGSG -library=stlport4"
               CXXFLAGSO="$CXXFLAGSO -library=stlport4"
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-              { $as_echo "$as_me:$LINENO: result: no" >&5
+              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
  	  ;;
 
@@ -5165,11 +4734,9 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
           CXXFLAGSO="$CXXFLAGSO -q -O2"
           CXXFLAGSPIC=""
           LDFLAGSPIC=""
-          { { $as_echo "$as_me:$LINENO: error: Attention! deal.II is not known to work with Borland C++!
-		If you intend to port it to Borland C++" >&5
-$as_echo "$as_me: error: Attention! deal.II is not known to work with Borland C++!
-		If you intend to port it to Borland C++" >&2;}
-   { (exit please remove this message from aclocal.m4 and call autoconf and configure. If you do not understand this); exit please remove this message from aclocal.m4 and call autoconf and configure. If you do not understand this; }; }
+          { as_fn_set_status please remove this message from aclocal.m4 and call autoconf and configure. If you do not understand this
+as_fn_error "Attention! deal.II is not known to work with Borland C++!
+		If you intend to port it to Borland C++" "$LINENO" 5; }
           ;;
 
       pathscale_cc)
@@ -5180,7 +4747,7 @@ $as_echo "$as_me: error: Attention! deal.II is not known to work with Borland C+
       *)
 	  CXXFLAGSG="$CXXFLAGSG -DDEBUG"
 	  CXXFLAGSO="$CXXFLAGSO -O2"
-          { $as_echo "$as_me:$LINENO: result: Unknown C++ compiler - using generic options" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: Unknown C++ compiler - using generic options" >&5
 $as_echo "Unknown C++ compiler - using generic options" >&6; }
           ;;
     esac
@@ -5190,14 +4757,10 @@ $as_echo "Unknown C++ compiler - using generic options" >&6; }
   if test "$GXX" = yes ; then
     case "$target" in
               alpha*-osf*)
-           { $as_echo "$as_me:$LINENO: checking whether -ggdb works for long symbols" >&5
+           { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -ggdb works for long symbols" >&5
 $as_echo_n "checking whether -ggdb works for long symbols... " >&6; }
            CXXFLAGS="-ggdb $CXXFLAGSG"
-           cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #               include <string>
@@ -5225,52 +4788,27 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
                CXXFLAGSG="-ggdb $CXXFLAGSG"
-               { $as_echo "$as_me:$LINENO: result: yes" >&5
+               { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
                CXXFLAGSG="-gstabs $CXXFLAGSG"
-               { $as_echo "$as_me:$LINENO: result: no -- using -gstabs instead" >&5
+               { $as_echo "$as_me:${as_lineno-$LINENO}: result: no -- using -gstabs instead" >&5
 $as_echo "no -- using -gstabs instead" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
            ;;
 
                                           *)
-           { $as_echo "$as_me:$LINENO: checking whether -ggdb works" >&5
+           { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -ggdb works" >&5
 $as_echo_n "checking whether -ggdb works... " >&6; }
            CXXFLAGS="-ggdb $CXXFLAGSG"
-	   cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -5281,40 +4819,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
                CXXFLAGSG="-ggdb $CXXFLAGSG"
-               { $as_echo "$as_me:$LINENO: result: yes" >&5
+               { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
                CXXFLAGSG="-g $CXXFLAGSG"
-               { $as_echo "$as_me:$LINENO: result: no -- using -g instead" >&5
+               { $as_echo "$as_me:${as_lineno-$LINENO}: result: no -- using -g instead" >&5
 $as_echo "no -- using -g instead" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
            ;;
     esac
@@ -5360,13 +4877,13 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     full_version=`echo "$CC_VERSION_STRING" | perl -pi -e 's/.*version (\d\.\d\.\d).*/\1/g;'`
     CC_VERSION=gcc`echo $full_version | perl -pi -e 's/(\d\.\d).*/\1/g;'`
 
-    { $as_echo "$as_me:$LINENO: result: C compiler is $CC_VERSION" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is $CC_VERSION" >&5
 $as_echo "C compiler is $CC_VERSION" >&6; }
   else
 
                     is_ibm_xlc="`($CC 2>&1) | egrep 'VisualAge C|C Set ++|C for AIX Compiler'`"
     if test "x$is_ibm_xlc" != "x"  ; then
-                        { $as_echo "$as_me:$LINENO: result: C compiler is IBM xlC" >&5
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is IBM xlC" >&5
 $as_echo "C compiler is IBM xlC" >&6; }
       CC_VERSION=ibm_xlc
     else
@@ -5375,33 +4892,29 @@ $as_echo "C compiler is IBM xlC" >&6; }
       if test "x$mips_pro" != "x" ; then
         case "$mips_pro" in
           *7.0* | *7.1* | *7.2* | *7.3*)
-                                    { $as_echo "$as_me:$LINENO: result: C compiler is $mips_pro" >&5
+                                    { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is $mips_pro" >&5
 $as_echo "C compiler is $mips_pro" >&6; }
-            { { $as_echo "$as_me:$LINENO: error: This compiler is not supported" >&5
-$as_echo "$as_me: error: This compiler is not supported" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "This compiler is not supported" "$LINENO" 5
             CC_VERSION=MIPSpro7.3
             ;;
           *7.4)
-            { $as_echo "$as_me:$LINENO: result: C compiler is MIPSpro compiler 7.4" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is MIPSpro compiler 7.4" >&5
 $as_echo "C compiler is MIPSpro compiler 7.4" >&6; }
-            { { $as_echo "$as_me:$LINENO: error: This compiler is not supported. Use MIPSPro compiler 7.4x" >&5
-$as_echo "$as_me: error: This compiler is not supported. Use MIPSPro compiler 7.4x" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "This compiler is not supported. Use MIPSPro compiler 7.4x" "$LINENO" 5
             CC_VERSION=MIPSpro7.4
             ;;
           *7.41* | *7.42* | *7.43* | *7.44*)
-            { $as_echo "$as_me:$LINENO: result: C compiler is MIPSpro compiler 7.4x" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is MIPSpro compiler 7.4x" >&5
 $as_echo "C compiler is MIPSpro compiler 7.4x" >&6; }
             CC_VERSION=MIPSpro7.4x
             ;;
           *"7.5"*)
-            { $as_echo "$as_me:$LINENO: result: C compiler is MIPSpro compiler 7.5" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is MIPSpro compiler 7.5" >&5
 $as_echo "C compiler is MIPSpro compiler 7.5" >&6; }
             CC_VERSION=MIPSpro7.5
             ;;
           *)
-            { $as_echo "$as_me:$LINENO: result: C compiler is unknown version but accepted MIPSpro compiler version" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is unknown version but accepted MIPSpro compiler version" >&5
 $as_echo "C compiler is unknown version but accepted MIPSpro compiler version" >&6; }
             CC_VERSION=MIPSpro-other
             ;;
@@ -5424,31 +4937,31 @@ $as_echo "C compiler is unknown version but accepted MIPSpro compiler version" >
 	  version9="`echo $version_string | grep 'Version 9'`"
 	  version10="`echo $version_string | grep 'Version 10'`"
           if test "x$version5" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C compiler is icc-5" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is icc-5" >&5
 $as_echo "C compiler is icc-5" >&6; }
             CC_VERSION=intel_icc5
           else if test "x$version6" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C compiler is icc-6" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is icc-6" >&5
 $as_echo "C compiler is icc-6" >&6; }
             CC_VERSION=intel_icc6
           else if test "x$version7" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C compiler is icc-7" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is icc-7" >&5
 $as_echo "C compiler is icc-7" >&6; }
             CC_VERSION=intel_icc7
           else if test "x$version8" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C compiler is icc-8" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is icc-8" >&5
 $as_echo "C compiler is icc-8" >&6; }
             CC_VERSION=intel_icc8
           else if test "x$version9" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C compiler is icc-9" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is icc-9" >&5
 $as_echo "C compiler is icc-9" >&6; }
             CC_VERSION=intel_icc9
           else if test "x$version10" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C compiler is icc-10" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is icc-10" >&5
 $as_echo "C compiler is icc-10" >&6; }
             CC_VERSION=intel_icc10
           else
-            { $as_echo "$as_me:$LINENO: result: C compiler is icc" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is icc" >&5
 $as_echo "C compiler is icc" >&6; }
             CC_VERSION=intel_icc
           fi fi fi fi fi fi
@@ -5456,14 +4969,14 @@ $as_echo "C compiler is icc" >&6; }
 
                     is_dec_cxx="`($CC -V 2>&1) | grep 'Compaq C'`"
           if test "x$is_dec_cxx" != "x" ; then
-            { $as_echo "$as_me:$LINENO: result: C compiler is Compaq cxx" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is Compaq cxx" >&5
 $as_echo "C compiler is Compaq cxx" >&6; }
             CC_VERSION=compaq_cxx
           else
 
       	                is_sun_cc="`($CC -V 2>&1) | grep 'Sun WorkShop'`"
             if test "x$is_sun_cc" != "x" ; then
-              { $as_echo "$as_me:$LINENO: result: C compiler is Sun Workshop compiler" >&5
+              { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is Sun Workshop compiler" >&5
 $as_echo "C compiler is Sun Workshop compiler" >&6; }
               CC_VERSION=sun_workshop
             else
@@ -5471,7 +4984,7 @@ $as_echo "C compiler is Sun Workshop compiler" >&6; }
   	                    is_sun_forte_cc="`($CC -V 2>&1) | grep 'Forte'`"
               is_sun_cc="`($CC -V 2>&1) | grep 'Sun C'`"
               if test "x$is_sun_forte_cc$is_sun_cc" != "x" ; then
-                { $as_echo "$as_me:$LINENO: result: C compiler is Sun C compiler" >&5
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is Sun C compiler" >&5
 $as_echo "C compiler is Sun C compiler" >&6; }
                 CC_VERSION=sun_cc
               else
@@ -5481,20 +4994,20 @@ $as_echo "C compiler is Sun C compiler" >&6; }
 		  CC_VERSION_STRING=`($CC -V 2>&1) | grep "^pgcc"`
                   full_version=`echo "$CC_VERSION_STRING" | perl -pi -e 's/.*pgcc\s+(\S+).*/\1/g;'`
     		  CC_VERSION=pgcc`echo $full_version | perl -pi -e 's/(\d\.\d).*/\1/g;'`
-  	          { $as_echo "$as_me:$LINENO: result: C compiler is Portland Group C $full_version" >&5
+  	          { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is Portland Group C $full_version" >&5
 $as_echo "C compiler is Portland Group C $full_version" >&6; }
   	        else
 
   	            	          is_aCC="`($CC -V 2>&1) | grep 'aCC'`"
   	          if test "x$is_aCC" != "x" ; then
-  	            { $as_echo "$as_me:$LINENO: result: C compiler is HP aCC" >&5
+  	            { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is HP aCC" >&5
 $as_echo "C compiler is HP aCC" >&6; }
   	            CC_VERSION=hp_aCC
   	          else
 
   	              	            is_bcc="`($CC -h 2>&1) | grep 'Borland'`"
   	            if test "x$is_bcc" != "x" ; then
-  	              { $as_echo "$as_me:$LINENO: result: C compiler is Borland C" >&5
+  	              { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is Borland C" >&5
 $as_echo "C compiler is Borland C" >&6; }
   	              CC_VERSION=borland_bcc
   	            else
@@ -5502,12 +5015,12 @@ $as_echo "C compiler is Borland C" >&6; }
   	              		      	              	 	      	              	                                                                                  	              is_kai_cc="`($CC --version 2>&1) | grep 'KAI C'`"
   	              is_kai_cc="$is_kai_cc`($CC -v 2>&1) | grep /KCC/`"
   	              if test "x$is_kai_cc" != "x" ; then
-  	                { $as_echo "$as_me:$LINENO: result: C compiler is KAI C" >&5
+  	                { $as_echo "$as_me:${as_lineno-$LINENO}: result: C compiler is KAI C" >&5
 $as_echo "C compiler is KAI C" >&6; }
   	                CC_VERSION=kai_cc
   	              else
 
-                                                { $as_echo "$as_me:$LINENO: result: Unrecognized compiler -- still trying" >&5
+                                                { $as_echo "$as_me:${as_lineno-$LINENO}: result: Unrecognized compiler -- still trying" >&5
 $as_echo "Unrecognized compiler -- still trying" >&6; }
 			CC_VERSION=unknown_cc
                       fi
@@ -5607,7 +5120,7 @@ $as_echo "Unrecognized compiler -- still trying" >&6; }
 	  esac
 
 
-  { $as_echo "$as_me:$LINENO: checking whether -wd1572 is allowed for the C compiler" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -wd1572 is allowed for the C compiler" >&5
 $as_echo_n "checking whether -wd1572 is allowed for the C compiler... " >&6; }
   ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -5617,11 +5130,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
   OLDCFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -wd1572"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -5632,40 +5141,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
 
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 		CFLAGS="$OLDCFLAGS"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
@@ -5678,7 +5166,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
           ;;
 
       *)
-          { $as_echo "$as_me:$LINENO: result: Unknown C compiler - using generic options" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: Unknown C compiler - using generic options" >&5
 $as_echo "Unknown C compiler - using generic options" >&6; }
 	  CFLAGSO="$CFLAGSO -O2"
           ;;
@@ -5694,7 +5182,7 @@ $as_echo "Unknown C compiler - using generic options" >&6; }
 
 
   # Check whether --enable-threads was given.
-if test "${enable_threads+set}" = set; then
+if test "${enable_threads+set}" = set; then :
   enableval=$enable_threads;
       enablethreads="$enableval"
 
@@ -5716,9 +5204,7 @@ fi
   if test "$enablethreads" = yes ; then
         case "$target" in
       *cygwin* )
-        { { $as_echo "$as_me:$LINENO: error: Multithreading is not supported on CygWin" >&5
-$as_echo "$as_me: error: Multithreading is not supported on CygWin" >&2;}
-   { (exit 1); exit 1; }; }
+        as_fn_error "Multithreading is not supported on CygWin" "$LINENO" 5
         ;;
     esac
 
@@ -5729,7 +5215,7 @@ $as_echo "$as_me: error: Multithreading is not supported on CygWin" >&2;}
 			;;
 
     *)
-    		{ $as_echo "$as_me:$LINENO: checking for platform specific thread flags" >&5
+    		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for platform specific thread flags" >&5
 $as_echo_n "checking for platform specific thread flags... " >&6; }
   	ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -5765,19 +5251,17 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
   	done
 
   	if test "$thread_flag" = invalid_last_entry ; then
-	  { $as_echo "$as_me:$LINENO: result: no flag found!" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no flag found!" >&5
 $as_echo "no flag found!" >&6; }
-	  { { $as_echo "$as_me:$LINENO: error: Could not determine multithreading flag for this platform. Aborting!" >&5
-$as_echo "$as_me: error: Could not determine multithreading flag for this platform. Aborting!" >&2;}
-   { (exit 1); exit 1; }; }
+	  as_fn_error "Could not determine multithreading flag for this platform. Aborting!" "$LINENO" 5
   	fi
-  	{ $as_echo "$as_me:$LINENO: result: -$thread_flag" >&5
+  	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: -$thread_flag" >&5
 $as_echo "-$thread_flag" >&6; }
 	;;
   esac
 
 
-  { $as_echo "$as_me:$LINENO: checking for platform specific multi-threading defines" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for platform specific multi-threading defines" >&5
 $as_echo_n "checking for platform specific multi-threading defines... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -5786,11 +5270,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #       if !defined (_REENTRANT) && !defined (_THREAD_SAFE)
@@ -5808,40 +5288,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: not necessary" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: not necessary" >&5
 $as_echo "not necessary" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	{ $as_echo "$as_me:$LINENO: result: -D_REENTRANT -D_THREAD_SAFE" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: -D_REENTRANT -D_THREAD_SAFE" >&5
 $as_echo "-D_REENTRANT -D_THREAD_SAFE" >&6; }
 	CXXFLAGSG="$CXXFLAGSG -D_REENTRANT -D_THREAD_SAFE"
 	CXXFLAGSO="$CXXFLAGSO -D_REENTRANT -D_THREAD_SAFE"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
@@ -5868,16 +5327,14 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 	    ;;
 
 	*)
-            { { $as_echo "$as_me:$LINENO: error: No threading compiler options for this C++ compiler specified at present" >&5
-$as_echo "$as_me: error: No threading compiler options for this C++ compiler specified at present" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "No threading compiler options for this C++ compiler specified at present" "$LINENO" 5
             exit 1
 	    ;;
       esac
     fi
 
 
-  { $as_echo "$as_me:$LINENO: checking for posix thread functions" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for posix thread functions" >&5
 $as_echo_n "checking for posix thread functions... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -5886,11 +5343,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #	include <pthread.h>
@@ -5907,42 +5360,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: ok" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	{ { $as_echo "$as_me:$LINENO: error: not found" >&5
-$as_echo "$as_me: error: not found" >&2;}
-   { (exit 1); exit 1; }; }
+	as_fn_error "not found" "$LINENO" 5
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking for posix thread mutex functions" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for posix thread mutex functions" >&5
 $as_echo_n "checking for posix thread mutex functions... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -5950,11 +5380,7 @@ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #	include <pthread.h>
@@ -5973,42 +5399,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: ok" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	{ { $as_echo "$as_me:$LINENO: error: not found" >&5
-$as_echo "$as_me: error: not found" >&2;}
-   { (exit 1); exit 1; }; }
+	as_fn_error "not found" "$LINENO" 5
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking for posix thread condition variable functions" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for posix thread condition variable functions" >&5
 $as_echo_n "checking for posix thread condition variable functions... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6016,11 +5419,7 @@ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #	include <pthread.h>
@@ -6042,42 +5441,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: ok" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	{ { $as_echo "$as_me:$LINENO: error: not found" >&5
-$as_echo "$as_me: error: not found" >&2;}
-   { (exit 1); exit 1; }; }
+	as_fn_error "not found" "$LINENO" 5
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking for posix thread barrier functions" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for posix thread barrier functions" >&5
 $as_echo_n "checking for posix thread barrier functions... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6085,11 +5461,7 @@ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #	include <pthread.h>
@@ -6107,53 +5479,28 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: ok" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
 	x=0
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	{ $as_echo "$as_me:$LINENO: result: not found. barriers will not be supported" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: not found. barriers will not be supported" >&5
 $as_echo "not found. barriers will not be supported" >&6; }
 	x=1
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    if test "x$x" = "x1" ; then
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_MT_POSIX_NO_BARRIERS 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_MT_POSIX_NO_BARRIERS 1" >>confdefs.h
 
   fi
 
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_MT_POSIX 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_MT_POSIX 1" >>confdefs.h
 
 
             LDFLAGS="$LDFLAGS -ldl"
@@ -6175,7 +5522,7 @@ _ACEOF
   if test "$enablethreads" = yes ; then
     case "$GXX_VERSION" in
       gcc*)
-  	{ $as_echo "$as_me:$LINENO: checking for only partly bracketed mutex initializer" >&5
+  	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for only partly bracketed mutex initializer" >&5
 $as_echo_n "checking for only partly bracketed mutex initializer... " >&6; }
 	ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6184,11 +5531,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 	CXXFLAGS="$CXXFLAGSG -Werror"
-	cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #	include <vector>
@@ -6201,40 +5544,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	  { $as_echo "$as_me:$LINENO: result: no" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	  { $as_echo "$as_me:$LINENO: result: yes" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	  CXXFLAGSG="$CXXFLAGSG -Wno-missing-braces"
 	  CXXFLAGSO="$CXXFLAGSO -Wno-missing-braces"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 	;;
       *)
@@ -6249,7 +5571,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
 
-  { $as_echo "$as_me:$LINENO: checking whether AssertThrow works with debug flags" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether AssertThrow works with debug flags" >&5
 $as_echo_n "checking whether AssertThrow works with debug flags... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6258,11 +5580,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <exception>
@@ -6345,43 +5663,22 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: yes" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	{ $as_echo "$as_me:$LINENO: result: no" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 	CXXFLAGSG="-DDISABLE_ASSERT_THROW $CXXFLAGSG"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking whether AssertThrow works with optimized flags" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether AssertThrow works with optimized flags" >&5
 $as_echo_n "checking whether AssertThrow works with optimized flags... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6390,11 +5687,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSO"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <exception>
@@ -6477,43 +5770,22 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: yes" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	{ $as_echo "$as_me:$LINENO: result: no" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 	CXXFLAGSO="-DDISABLE_ASSERT_THROW $CXXFLAGSO"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for local computed template typedef bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for local computed template typedef bug" >&5
 $as_echo_n "checking for local computed template typedef bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6522,11 +5794,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG -g"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	template < int dim > struct T {
@@ -6546,47 +5814,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_LOCAL_TYPEDEF_COMP_WORKAROUND 1
-_ACEOF
+$as_echo "#define DEAL_II_LOCAL_TYPEDEF_COMP_WORKAROUND 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for partially specialized template access control bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for partially specialized template access control bug" >&5
 $as_echo_n "checking for partially specialized template access control bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6595,11 +5840,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	template <int N, int M> struct T      {    int bar ();  };
@@ -6625,47 +5866,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_TEMPLATE_SPEC_ACCESS_WORKAROUND 1
-_ACEOF
+$as_echo "#define DEAL_II_TEMPLATE_SPEC_ACCESS_WORKAROUND 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for template member operator instantiation bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for template member operator instantiation bug" >&5
 $as_echo_n "checking for template member operator instantiation bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6674,11 +5892,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	struct X
@@ -6697,40 +5911,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
       x=""
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
       x="template"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 cat >>confdefs.h <<_ACEOF
@@ -6739,7 +5932,7 @@ _ACEOF
 
 
 
-  { $as_echo "$as_me:$LINENO: checking for explicit destructor call bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for explicit destructor call bug" >&5
 $as_echo_n "checking for explicit destructor call bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6748,11 +5941,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
       namespace dealii
@@ -6784,34 +5973,14 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
 cat >>confdefs.h <<_ACEOF
@@ -6820,11 +5989,10 @@ _ACEOF
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for 1st template friend in namespace bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 1st template friend in namespace bug" >&5
 $as_echo_n "checking for 1st template friend in namespace bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6833,11 +6001,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	namespace NS {
@@ -6870,34 +6034,14 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
 cat >>confdefs.h <<_ACEOF
@@ -6906,11 +6050,10 @@ _ACEOF
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for 2nd template friend in namespace bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 2nd template friend in namespace bug" >&5
 $as_echo_n "checking for 2nd template friend in namespace bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6919,11 +6062,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG -Werror"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	namespace NS {
@@ -6948,34 +6087,14 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
 cat >>confdefs.h <<_ACEOF
@@ -6984,11 +6103,10 @@ _ACEOF
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for template specialization friend bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for template specialization friend bug" >&5
 $as_echo_n "checking for template specialization friend bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -6997,11 +6115,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 template <int N, typename T> class X;
@@ -7027,34 +6141,14 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<_ACEOF
@@ -7063,11 +6157,10 @@ _ACEOF
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for bug with implementing pure functions" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bug with implementing pure functions" >&5
 $as_echo_n "checking for bug with implementing pure functions... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -7076,11 +6169,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	template <int dim>
@@ -7105,47 +6194,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_IMPLEMENTED_PURE_FUNCTION_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_IMPLEMENTED_PURE_FUNCTION_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for template template typedef bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for template template typedef bug" >&5
 $as_echo_n "checking for template template typedef bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -7154,11 +6220,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	template <int dim> struct TT { typedef int type; };
@@ -7181,47 +6243,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_TEMPLATE_TEMPLATE_TYPEDEF_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_TEMPLATE_TEMPLATE_TYPEDEF_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for address of template template function bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for address of template template function bug" >&5
 $as_echo_n "checking for address of template template function bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -7230,11 +6269,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
       template <int> struct X {};
@@ -7259,47 +6294,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_FUNPTR_TEMPLATE_TEMPLATE_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_FUNPTR_TEMPLATE_TEMPLATE_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for nested classes are implicit friends bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nested classes are implicit friends bug" >&5
 $as_echo_n "checking for nested classes are implicit friends bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -7308,11 +6320,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	struct X {
@@ -7333,47 +6341,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_NESTED_CLASS_FRIEND_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_NESTED_CLASS_FRIEND_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for nested template class friends bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nested template class friends bug" >&5
 $as_echo_n "checking for nested template class friends bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -7382,11 +6367,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
       template <typename> class X {
@@ -7407,47 +6388,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_NESTED_CLASS_TEMPL_FRIEND_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_NESTED_CLASS_TEMPL_FRIEND_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for member variable specialization bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for member variable specialization bug" >&5
 $as_echo_n "checking for member variable specialization bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -7456,11 +6414,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	template <int dim> struct T {
@@ -7478,47 +6432,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_MEMBER_VAR_SPECIALIZATION_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_MEMBER_VAR_SPECIALIZATION_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for member array specialization bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for member array specialization bug" >&5
 $as_echo_n "checking for member array specialization bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -7527,11 +6458,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
       template <int dim>
@@ -7551,47 +6478,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_MEMBER_ARRAY_SPECIALIZATION_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_MEMBER_ARRAY_SPECIALIZATION_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for template member function specialization bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for template member function specialization bug" >&5
 $as_echo_n "checking for template member function specialization bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -7600,11 +6504,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
       template <int dim> struct X
@@ -7627,47 +6527,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_MEMBER_TEMPLATE_SPECIALIZATION_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_MEMBER_TEMPLATE_SPECIALIZATION_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for long double optimization bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double optimization bug" >&5
 $as_echo_n "checking for long double optimization bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -7676,11 +6553,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSO"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	double* copy(long double* first, long double* last, double* result)
@@ -7710,47 +6583,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. disabling respective functions" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. disabling respective functions" >&5
 $as_echo "yes. disabling respective functions" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_LONG_DOUBLE_LOOP_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_LONG_DOUBLE_LOOP_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for anonymous namespace and name mangling bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for anonymous namespace and name mangling bug" >&5
 $as_echo_n "checking for anonymous namespace and name mangling bug... " >&6; }
 
     echo "namespace { int SYMBOL() {return 1;}; }" >  conftest.cc
@@ -7765,21 +6615,19 @@ $as_echo_n "checking for anonymous namespace and name mangling bug... " >&6; }
     if (($CXX conftest.1.$ac_objext conftest.2.$ac_objext \
             conftest.3.$ac_objext -o conftest  2>&1 ) > /dev/null );\
   then
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
   else
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_ANON_NAMESPACE_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_ANON_NAMESPACE_BUG 1" >>confdefs.h
 
   fi
   rm -f conftest.1.$ac_objext conftest.2.$ac_objext conftest
 
 
-  { $as_echo "$as_me:$LINENO: checking for anonymous namespace and weak linkage bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for anonymous namespace and weak linkage bug" >&5
 $as_echo_n "checking for anonymous namespace and weak linkage bug... " >&6; }
 
     echo "namespace { int SYMBOL() {return 1;}; }" >  conftest.cc
@@ -7791,21 +6639,19 @@ $as_echo_n "checking for anonymous namespace and weak linkage bug... " >&6; }
 
     if test "x$check" = "x" ;
   then
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
   else
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_ANON_NAMESPACE_LINKAGE_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_ANON_NAMESPACE_LINKAGE_BUG 1" >>confdefs.h
 
   fi
   rm -f conftest.$ac_objext
 
 
-  { $as_echo "$as_me:$LINENO: checking for bogus warning with anonymous namespaces" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bogus warning with anonymous namespaces" >&5
 $as_echo_n "checking for bogus warning with anonymous namespaces... " >&6; }
 
   ac_ext=cpp
@@ -7825,11 +6671,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 	;;
   esac
 
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
      template<int dim> class Point
@@ -7876,34 +6718,14 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: no" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-	{ $as_echo "$as_me:$LINENO: result: yes" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<_ACEOF
@@ -7912,7 +6734,6 @@ _ACEOF
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
@@ -7920,7 +6741,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   case "$target" in
     *-apple-darwin* )
 
-    { $as_echo "$as_me:$LINENO: checking for weak linkage bug (Apple gcc3.3) " >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for weak linkage bug (Apple gcc3.3) " >&5
 $as_echo_n "checking for weak linkage bug (Apple gcc3.3) ... " >&6; }
 
         echo "template <int> void SYMBOL() {}" >  conftest.cc
@@ -7943,16 +6764,14 @@ $as_echo_n "checking for weak linkage bug (Apple gcc3.3) ... " >&6; }
 
         if test "x$check" = "x" ;
     then
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
     else
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
         DARWIN_GCC_WEAK_LINKAGE_BUG="yes"
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_WEAK_LINKAGE_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_WEAK_LINKAGE_BUG 1" >>confdefs.h
 
     fi
     rm -f conftest.$ac_objext
@@ -7961,7 +6780,7 @@ _ACEOF
   esac
 
 
-  { $as_echo "$as_me:$LINENO: checking for SFINAE bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SFINAE bug" >&5
 $as_echo_n "checking for SFINAE bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -7970,11 +6789,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
       template <typename> struct int_or_double { static const bool value = false;};
@@ -8008,47 +6823,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. disabling template constraints" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. disabling template constraints" >&5
 $as_echo "yes. disabling template constraints" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_SFINAE_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_SFINAE_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for template operator disambiguation bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for template operator disambiguation bug" >&5
 $as_echo_n "checking for template operator disambiguation bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8057,11 +6849,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
       struct X
@@ -8083,47 +6871,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: yes. using workaround" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. using workaround" >&5
 $as_echo "yes. using workaround" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_TEMPL_OP_DISAMBIGUATION_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_TEMPL_OP_DISAMBIGUATION_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for array assignment in conditional bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for array assignment in conditional bug" >&5
 $as_echo_n "checking for array assignment in conditional bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8132,11 +6897,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="-W -Wall -Werror"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 
@@ -8152,47 +6913,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_ARRAY_CONDITIONAL_DECAY_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_ARRAY_CONDITIONAL_DECAY_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for array argument bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for array argument bug" >&5
 $as_echo_n "checking for array argument bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8201,11 +6939,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="-W -Wall -Werror"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
       template <int dim> struct X {
@@ -8224,47 +6958,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_ARRAY_ARG_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_ARRAY_ARG_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for explicit template constructor bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for explicit template constructor bug" >&5
 $as_echo_n "checking for explicit template constructor bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8273,11 +6984,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
       struct X {
@@ -8297,48 +7004,25 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes. disabling some functions" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. disabling some functions" >&5
 $as_echo "yes. disabling some functions" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_EXPLICIT_CONSTRUCTOR_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_EXPLICIT_CONSTRUCTOR_BUG 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
   if test "x$GXX" = "xyes" ; then
-    { $as_echo "$as_me:$LINENO: checking for boost::bind compiler internal error" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for boost::bind compiler internal error" >&5
 $as_echo_n "checking for boost::bind compiler internal error... " >&6; }
     ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8347,11 +7031,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
     CXXFLAGS="$CXXFLAGSO -I./contrib/boost/include"
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <complex>
@@ -8376,49 +7056,26 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_BOOST_BIND_COMPILER_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_BOOST_BIND_COMPILER_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   fi
 
 
   if test "x$GXX" = "xyes" ; then
-    { $as_echo "$as_me:$LINENO: checking for boost::graph compiler internal error" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for boost::graph compiler internal error" >&5
 $as_echo_n "checking for boost::graph compiler internal error... " >&6; }
     ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8427,11 +7084,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
     CXXFLAGS="$CXXFLAGSO -I./contrib/boost/include"
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <boost/graph/adjacency_list.hpp>
@@ -8458,48 +7111,25 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_BOOST_GRAPH_COMPILER_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_BOOST_GRAPH_COMPILER_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   fi
 
 
-  { $as_echo "$as_me:$LINENO: checking for const member deduction bug" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for const member deduction bug" >&5
 $as_echo_n "checking for const member deduction bug... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8508,11 +7138,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
       template <typename T> struct identity { typedef T type; };
@@ -8534,49 +7160,26 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_CONST_MEMBER_DEDUCTION_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_CONST_MEMBER_DEDUCTION_BUG 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
   case "$GXX_VERSION" in
     gcc*)
-      { $as_echo "$as_me:$LINENO: checking for warning bug with type qualifiers" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for warning bug with type qualifiers" >&5
 $as_echo_n "checking for warning bug with type qualifiers... " >&6; }
       ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8585,11 +7188,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
       CXXFLAGS="$CXXFLAGSG -Werror"
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
           struct S {
@@ -8617,46 +7216,25 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-          { $as_echo "$as_me:$LINENO: result: no" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-          { $as_echo "$as_me:$LINENO: result: yes" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
           CXXFLAGSG="$CXXFLAGSG -Wno-ignored-qualifiers"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     ;;
   esac
 
 
   if test "x$GXX" = "xyes" ; then
-    { $as_echo "$as_me:$LINENO: checking for problem with -Wsynth and std::complex" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for problem with -Wsynth and std::complex" >&5
 $as_echo_n "checking for problem with -Wsynth and std::complex... " >&6; }
     ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8665,11 +7243,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
     CXXFLAGS="-Wsynth -Werror"
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #       include <complex>
@@ -8685,45 +7259,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	CXXFLAGSG="`echo $CXXFLAGSG | perl -pi -e 's/-Wsynth\s*//g;'`"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   fi
 
 
   if test "x$GXX" = "xyes" ; then
-    { $as_echo "$as_me:$LINENO: checking for problem with -Wctor-dtor-privacy" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for problem with -Wctor-dtor-privacy" >&5
 $as_echo_n "checking for problem with -Wctor-dtor-privacy... " >&6; }
     ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8732,11 +7285,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
     CXXFLAGS="$CXXFLAGSG -Werror"
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
         template <typename T>
@@ -8767,44 +7316,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	CXXFLAGSG="$CXXFLAGSG -Wno-ctor-dtor-privacy"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   fi
 
 
-  { $as_echo "$as_me:$LINENO: checking whether vector iterators are plain pointers" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether vector iterators are plain pointers" >&5
 $as_echo_n "checking whether vector iterators are plain pointers... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8813,11 +7341,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <vector>
@@ -8835,47 +7359,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_VECTOR_ITERATOR_IS_POINTER 1
-_ACEOF
+$as_echo "#define DEAL_II_VECTOR_ITERATOR_IS_POINTER 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for __PRETTY_FUNCTION__" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __PRETTY_FUNCTION__" >&5
 $as_echo_n "checking for __PRETTY_FUNCTION__... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -8884,11 +7385,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #	include <iostream>
@@ -8903,42 +7400,18 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
-      { $as_echo "$as_me:$LINENO: checking for __func__" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __func__" >&5
 $as_echo_n "checking for __func__... " >&6; }
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #	include <iostream>
@@ -8953,40 +7426,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-          { $as_echo "$as_me:$LINENO: result: yes" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	  x=__func__
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-          { $as_echo "$as_me:$LINENO: result: no" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 	  x="\"(not available)\""
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 cat >>confdefs.h <<_ACEOF
@@ -8995,11 +7447,10 @@ _ACEOF
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for std::iterator class" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::iterator class" >&5
 $as_echo_n "checking for std::iterator class... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9008,11 +7459,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <iterator>
@@ -9027,47 +7474,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_STD_ITERATOR_CLASS 1
-_ACEOF
+$as_echo "#define HAVE_STD_ITERATOR_CLASS 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for std::i/ostringstream classes" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::i/ostringstream classes" >&5
 $as_echo_n "checking for std::i/ostringstream classes... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9076,11 +7500,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <sstream>
@@ -9096,47 +7516,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_STD_STRINGSTREAM 1
-_ACEOF
+$as_echo "#define HAVE_STD_STRINGSTREAM 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for std::numeric_limits classes" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::numeric_limits classes" >&5
 $as_echo_n "checking for std::numeric_limits classes... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9145,11 +7542,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <limits>
@@ -9164,47 +7557,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_STD_NUMERIC_LIMITS 1
-_ACEOF
+$as_echo "#define HAVE_STD_NUMERIC_LIMITS 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for <ostream> header" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for <ostream> header" >&5
 $as_echo_n "checking for <ostream> header... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9213,11 +7583,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <ostream>
@@ -9232,47 +7598,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_STD_OSTREAM_HEADER 1
-_ACEOF
+$as_echo "#define HAVE_STD_OSTREAM_HEADER 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for <iosfwd> header" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for <iosfwd> header" >&5
 $as_echo_n "checking for <iosfwd> header... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9281,11 +7624,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <iosfwd>
@@ -9300,48 +7639,25 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_STD_IOSFWD_HEADER 1
-_ACEOF
+$as_echo "#define HAVE_STD_IOSFWD_HEADER 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
   if test ! "x$GXX_BRAND" = "PortlandGroup" ; then
-    { $as_echo "$as_me:$LINENO: checking for __builtin_expect" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_expect" >&5
 $as_echo_n "checking for __builtin_expect... " >&6; }
     ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9350,11 +7666,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
     CXXFLAGS="$CXXFLAGSG"
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	  bool f() {}
@@ -9369,53 +7681,26 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
 
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_BUILTIN_EXPECT 1
-_ACEOF
+$as_echo "#define HAVE_BUILTIN_EXPECT 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
   fi
 
 
-  { $as_echo "$as_me:$LINENO: checking for __verbose_terminate_handler" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __verbose_terminate_handler" >&5
 $as_echo_n "checking for __verbose_terminate_handler... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9424,11 +7709,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <exception>
@@ -9456,52 +7737,25 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_VERBOSE_TERMINATE 1
-_ACEOF
+$as_echo "#define HAVE_VERBOSE_TERMINATE 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
 
-
-  { $as_echo "$as_me:$LINENO: checking for glibc-like stacktrace information" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for glibc-like stacktrace information" >&5
 $as_echo_n "checking for glibc-like stacktrace information... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9510,11 +7764,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <execinfo.h>
@@ -9533,31 +7783,12 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_GLIBC_STACKTRACE 1
-_ACEOF
+$as_echo "#define HAVE_GLIBC_STACKTRACE 1" >>confdefs.h
 
 
                                     case "$target" in
@@ -9565,15 +7796,11 @@ _ACEOF
 	  ;;
 
         *)
-          { $as_echo "$as_me:$LINENO: checking whether compiler accepts -rdynamic" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler accepts -rdynamic" >&5
 $as_echo_n "checking whether compiler accepts -rdynamic... " >&6; }
 
           CXXFLAGS="$CXXFLAGSG -rdynamic"
-          cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -9584,62 +7811,33 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
 
-              { $as_echo "$as_me:$LINENO: result: yes" >&5
+              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
               LDFLAGS="$LDFLAGS -rdynamic"
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-              { $as_echo "$as_me:$LINENO: result: no" >&5
+              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
           ;;
       esac
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for libstdc++ demangler" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libstdc++ demangler" >&5
 $as_echo_n "checking for libstdc++ demangler... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9648,11 +7846,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <exception>
@@ -9694,49 +7888,22 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIBSTDCXX_DEMANGLER 1
-_ACEOF
+$as_echo "#define HAVE_LIBSTDCXX_DEMANGLER 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 
 
   ac_ext=cpp
@@ -9747,22 +7914,15 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG -Werror"
 
-  { $as_echo "$as_me:$LINENO: checking for minimal std::vector<T> capacity" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for minimal std::vector<T> capacity" >&5
 $as_echo_n "checking for minimal std::vector<T> capacity... " >&6; }
-  if test "$cross_compiling" = yes; then
-  { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: cannot run test program while cross compiling
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot run test program while cross compiling
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+as_fn_error "cannot run test program while cross compiling
+See \`config.log' for more details." "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <vector>
@@ -9774,42 +7934,14 @@ int main () {
 }
 
 _ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+if ac_fn_cxx_try_run "$LINENO"; then :
 
-	  	  { { $as_echo "$as_me:$LINENO: error: impossible result -- aborting" >&5
-$as_echo "$as_me: error: impossible result -- aborting" >&2;}
-   { (exit 1); exit 1; }; }
+	  	  as_fn_error "impossible result -- aborting" "$LINENO" 5
 
 else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-$as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
 
 	  result="$?"
-	  { $as_echo "$as_me:$LINENO: result: $result" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $result" >&5
 $as_echo "$result" >&6; }
 
 cat >>confdefs.h <<_ACEOF
@@ -9819,28 +7951,20 @@ _ACEOF
 
 
 fi
-rm -rf conftest.dSYM
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
 
-
-    { $as_echo "$as_me:$LINENO: checking for minimal std::vector<bool> capacity" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for minimal std::vector<bool> capacity" >&5
 $as_echo_n "checking for minimal std::vector<bool> capacity... " >&6; }
-  if test "$cross_compiling" = yes; then
-  { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: cannot run test program while cross compiling
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot run test program while cross compiling
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+as_fn_error "cannot run test program while cross compiling
+See \`config.log' for more details." "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <vector>
@@ -9852,42 +7976,14 @@ int main () {
 }
 
 _ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+if ac_fn_cxx_try_run "$LINENO"; then :
 
-	  	  { { $as_echo "$as_me:$LINENO: error: impossible result -- aborting" >&5
-$as_echo "$as_me: error: impossible result -- aborting" >&2;}
-   { (exit 1); exit 1; }; }
+	  	  as_fn_error "impossible result -- aborting" "$LINENO" 5
 
 else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-$as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
 
 	  result="$?"
-	  { $as_echo "$as_me:$LINENO: result: $result" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $result" >&5
 $as_echo "$result" >&6; }
 
 cat >>confdefs.h <<_ACEOF
@@ -9897,14 +7993,13 @@ _ACEOF
 
 
 fi
-rm -rf conftest.dSYM
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
 
 
-
-  { $as_echo "$as_me:$LINENO: checking for exception specifications on abort()" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for exception specifications on abort()" >&5
 $as_echo_n "checking for exception specifications on abort()... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9913,11 +8008,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="-Werror $CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cstdlib>
@@ -9932,48 +8023,25 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: none" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
 $as_echo "none" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	{ $as_echo "$as_me:$LINENO: result: yes" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_ABORT_NOTHROW_EXCEPTION 1
-_ACEOF
+$as_echo "#define DEAL_II_ABORT_NOTHROW_EXCEPTION 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
 
-  { $as_echo "$as_me:$LINENO: checking whether getrusage is properly declared" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether getrusage is properly declared" >&5
 $as_echo_n "checking whether getrusage is properly declared... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -9982,11 +8050,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <sys/resource.h>
@@ -10002,49 +8066,26 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: yes" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-	{ $as_echo "$as_me:$LINENO: result: no" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define NO_HAVE_GETRUSAGE 1
-_ACEOF
+$as_echo "#define NO_HAVE_GETRUSAGE 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
 
 
-  { $as_echo "$as_me:$LINENO: checking whether isnan is declared with debug flags" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether isnan is declared with debug flags" >&5
 $as_echo_n "checking whether isnan is declared with debug flags... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -10054,11 +8095,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
   deal_II_isnan_flag=""
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cmath>
@@ -10074,46 +8111,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: yes" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	deal_II_isnan_flag="-DHAVE_ISNAN"
 	CXXFLAGSG="$deal_II_isnan_flag $CXXFLAGSG"
 
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
   if test "x$deal_II_isnan_flag" = "x" ; then
-            cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cmath>
@@ -10129,37 +8139,14 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	  { $as_echo "$as_me:$LINENO: result: yes" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	  deal_II_isnan_flag="-DHAVE_UNDERSCORE_ISNAN"
 	  CXXFLAGSG="$deal_II_isnan_flag $CXXFLAGSG"
 
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   fi
 
@@ -10168,11 +8155,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
             deal_II_isnan_flag=""
     for testflag in -D_ISOC99_SOURCE -D__EXTENSIONS__ ; do
       CXXFLAGS="$CXXFLAGSG $testflag"
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cmath>
@@ -10188,42 +8171,15 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
 	  	  	  deal_II_isnan_flag="-DHAVE_ISNAN $testflag"
 	  break;
 
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-                        cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+                        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cmath>
@@ -10239,50 +8195,27 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
 	  	  	  deal_II_isnan_flag="-DHAVE_UNDERSCORE_ISNAN $testflag"
 	  break;
 
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     done
 
                 if test "x$deal_II_isnan_flag" = "x" ; then
-      { $as_echo "$as_me:$LINENO: result: no." >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no." >&5
 $as_echo "no." >&6; }
     else
-            { $as_echo "$as_me:$LINENO: result: using $testflag" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: using $testflag" >&5
 $as_echo "using $testflag" >&6; }
       CXXFLAGSG="$deal_II_isnan_flag $CXXFLAGSG"
     fi
   fi
 
 
-  { $as_echo "$as_me:$LINENO: checking whether isnan is declared with optimized flags" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether isnan is declared with optimized flags" >&5
 $as_echo_n "checking whether isnan is declared with optimized flags... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -10292,11 +8225,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSO"
   deal_II_isnan_flag=""
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cmath>
@@ -10312,46 +8241,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: yes" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	deal_II_isnan_flag="-DHAVE_ISNAN"
 	CXXFLAGSO="$deal_II_isnan_flag $CXXFLAGSO"
 
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
   if test "x$deal_II_isnan_flag" = "x" ; then
-            cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cmath>
@@ -10367,37 +8269,14 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	  { $as_echo "$as_me:$LINENO: result: yes" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	  deal_II_isnan_flag="-DHAVE_UNDERSCORE_ISNAN"
 	  CXXFLAGSO="$deal_II_isnan_flag $CXXFLAGSO"
 
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   fi
 
@@ -10406,11 +8285,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
             deal_II_isnan_flag=""
     for testflag in -D_ISOC99_SOURCE -D__EXTENSIONS__ ; do
       CXXFLAGS="$CXXFLAGSO $testflag"
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cmath>
@@ -10426,42 +8301,15 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
 	  	  	  deal_II_isnan_flag="-DHAVE_ISNAN $testflag"
 	  break;
 
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-                        cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+                        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cmath>
@@ -10477,43 +8325,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
 	  	  	  deal_II_isnan_flag="-DHAVE_UNDERSCORE_ISNAN $testflag"
 	  break;
 
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     done
 
                 if test "x$deal_II_isnan_flag" = "x" ; then
-      { $as_echo "$as_me:$LINENO: result: no." >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no." >&5
 $as_echo "no." >&6; }
     else
-            { $as_echo "$as_me:$LINENO: result: using $testflag" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: using $testflag" >&5
 $as_echo "using $testflag" >&6; }
       CXXFLAGSO="$deal_II_isnan_flag $CXXFLAGSO"
     fi
@@ -10522,7 +8347,7 @@ $as_echo "using $testflag" >&6; }
 
 
 
-  { $as_echo "$as_me:$LINENO: checking for std::isfinite" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::isfinite" >&5
 $as_echo_n "checking for std::isfinite... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -10531,11 +8356,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cmath>
@@ -10551,47 +8372,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: result: yes" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_HAVE_ISFINITE 1
-_ACEOF
+$as_echo "#define DEAL_II_HAVE_ISFINITE 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for rand_r" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for rand_r" >&5
 $as_echo_n "checking for rand_r... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -10600,11 +8398,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <cstdlib>
@@ -10620,48 +8414,25 @@ int i=rand_r(&i);
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	  { $as_echo "$as_me:$LINENO: result: yes" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_RAND_R 1
-_ACEOF
+$as_echo "#define HAVE_RAND_R 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	  { $as_echo "$as_me:$LINENO: result: no" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for quad vs. quad_t define" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quad vs. quad_t define" >&5
 $as_echo_n "checking for quad vs. quad_t define... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -10670,11 +8441,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <sys/types.h>
@@ -10691,44 +8458,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: yes. working around" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. working around" >&5
 $as_echo "yes. working around" >&6; }
       CXXFLAGSG="$CXXFLAGSG -D_POSIX_SOURCE"
       CXXFLAGSO="$CXXFLAGSO -D_POSIX_SOURCE"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
-  { $as_echo "$as_me:$LINENO: checking for definitions of error codes in errno.h" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for definitions of error codes in errno.h" >&5
 $as_echo_n "checking for definitions of error codes in errno.h... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -10737,11 +8483,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <iostream>
@@ -10758,142 +8500,31 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: no. working around" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no. working around" >&5
 $as_echo "no. working around" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_DIRECT_ERRNO_H 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_DIRECT_ERRNO_H 1" >>confdefs.h
 
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
 
 
-
-for ac_func in $ac_func_list
-do
-as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_func" >&5
-$as_echo_n "checking for $ac_func... " >&6; }
-if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_$ac_func || defined __stub___$ac_func
-choke me
-#endif
-
-int
-main ()
-{
-return $ac_func ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  eval "$as_ac_var=yes"
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_var=no"
-fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-ac_res=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+  for ac_func in $ac_func_list
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var"
+eval as_val=\$$as_ac_var
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -10906,22 +8537,15 @@ done
 
 
 
-
-
-
-
-
-
-
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-{ $as_echo "$as_me:$LINENO: checking how to run the C++ preprocessor" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
 $as_echo_n "checking how to run the C++ preprocessor... " >&6; }
 if test -z "$CXXCPP"; then
-  if test "${ac_cv_prog_CXXCPP+set}" = set; then
+  if test "${ac_cv_prog_CXXCPP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
       # Double quotes because CXXCPP needs to be expanded
@@ -10936,11 +8560,7 @@ do
   # <limits.h> exists even on freestanding compilers.
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef __STDC__
 # include <limits.h>
@@ -10949,78 +8569,34 @@ cat >>conftest.$ac_ext <<_ACEOF
 #endif
 		     Syntax error
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_cxx_try_cpp "$LINENO"; then :
 
+else
   # Broken: fails on valid input.
 continue
 fi
-
 rm -f conftest.err conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
+if ac_fn_cxx_try_cpp "$LINENO"; then :
   # Broken: success on invalid input.
 continue
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
   # Passes both tests.
 ac_preproc_ok=:
 break
 fi
-
 rm -f conftest.err conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
+if $ac_preproc_ok; then :
   break
 fi
 
@@ -11032,7 +8608,7 @@ fi
 else
   ac_cv_prog_CXXCPP=$CXXCPP
 fi
-{ $as_echo "$as_me:$LINENO: result: $CXXCPP" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
 $as_echo "$CXXCPP" >&6; }
 ac_preproc_ok=false
 for ac_cxx_preproc_warn_flag in '' yes
@@ -11043,11 +8619,7 @@ do
   # <limits.h> exists even on freestanding compilers.
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef __STDC__
 # include <limits.h>
@@ -11056,87 +8628,40 @@ cat >>conftest.$ac_ext <<_ACEOF
 #endif
 		     Syntax error
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_cxx_try_cpp "$LINENO"; then :
 
+else
   # Broken: fails on valid input.
 continue
 fi
-
 rm -f conftest.err conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
+if ac_fn_cxx_try_cpp "$LINENO"; then :
   # Broken: success on invalid input.
 continue
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
   # Passes both tests.
 ac_preproc_ok=:
 break
 fi
-
 rm -f conftest.err conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
-  :
+if $ac_preproc_ok; then :
+
 else
-  { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: C++ preprocessor \"$CXXCPP\" fails sanity check
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: C++ preprocessor \"$CXXCPP\" fails sanity check
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+as_fn_error "C++ preprocessor \"$CXXCPP\" fails sanity check
+See \`config.log' for more details." "$LINENO" 5; }
 fi
 
 ac_ext=cpp
@@ -11146,9 +8671,9 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 
-{ $as_echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
 $as_echo_n "checking for grep that handles long lines and -e... " >&6; }
-if test "${ac_cv_path_GREP+set}" = set; then
+if test "${ac_cv_path_GREP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -z "$GREP"; then
@@ -11159,7 +8684,7 @@ for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_prog in grep ggrep; do
+    for ac_prog in grep ggrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
       { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
@@ -11179,7 +8704,7 @@ case `"$ac_path_GREP" --version 2>&1` in
     $as_echo 'GREP' >> "conftest.nl"
     "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    ac_count=`expr $ac_count + 1`
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
     if test $ac_count -gt ${ac_path_GREP_max-0}; then
       # Best one so far, save it but keep looking for a better one
       ac_cv_path_GREP="$ac_path_GREP"
@@ -11194,26 +8719,24 @@ esac
       $ac_path_GREP_found && break 3
     done
   done
-done
+  done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_GREP"; then
-    { { $as_echo "$as_me:$LINENO: error: no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
-$as_echo "$as_me: error: no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_GREP=$GREP
 fi
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_GREP" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
 $as_echo "$ac_cv_path_GREP" >&6; }
  GREP="$ac_cv_path_GREP"
 
 
-{ $as_echo "$as_me:$LINENO: checking for egrep" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
 $as_echo_n "checking for egrep... " >&6; }
-if test "${ac_cv_path_EGREP+set}" = set; then
+if test "${ac_cv_path_EGREP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
@@ -11227,7 +8750,7 @@ for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_prog in egrep; do
+    for ac_prog in egrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
       { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
@@ -11247,7 +8770,7 @@ case `"$ac_path_EGREP" --version 2>&1` in
     $as_echo 'EGREP' >> "conftest.nl"
     "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    ac_count=`expr $ac_count + 1`
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
     if test $ac_count -gt ${ac_path_EGREP_max-0}; then
       # Best one so far, save it but keep looking for a better one
       ac_cv_path_EGREP="$ac_path_EGREP"
@@ -11262,12 +8785,10 @@ esac
       $ac_path_EGREP_found && break 3
     done
   done
-done
+  done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_EGREP"; then
-    { { $as_echo "$as_me:$LINENO: error: no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
-$as_echo "$as_me: error: no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_EGREP=$EGREP
@@ -11275,21 +8796,17 @@ fi
 
    fi
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_EGREP" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
 $as_echo "$ac_cv_path_EGREP" >&6; }
  EGREP="$ac_cv_path_EGREP"
 
 
-{ $as_echo "$as_me:$LINENO: checking for ANSI C header files" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
 $as_echo_n "checking for ANSI C header files... " >&6; }
-if test "${ac_cv_header_stdc+set}" = set; then
+if test "${ac_cv_header_stdc+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 #include <stdarg.h>
@@ -11304,48 +8821,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_header_stdc=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_header_stdc=no
+  ac_cv_header_stdc=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <string.h>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then
-  :
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
 else
   ac_cv_header_stdc=no
 fi
@@ -11355,18 +8847,14 @@ fi
 
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then
-  :
+  $EGREP "free" >/dev/null 2>&1; then :
+
 else
   ac_cv_header_stdc=no
 fi
@@ -11376,14 +8864,10 @@ fi
 
 if test $ac_cv_header_stdc = yes; then
   # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
-  if test "$cross_compiling" = yes; then
+  if test "$cross_compiling" = yes; then :
   :
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ctype.h>
 #include <stdlib.h>
@@ -11410,291 +8894,66 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  :
-else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-$as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_cxx_try_run "$LINENO"; then :
 
-( exit $ac_status )
-ac_cv_header_stdc=no
+else
+  ac_cv_header_stdc=no
 fi
-rm -rf conftest.dSYM
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
-
 fi
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
 $as_echo "$ac_cv_header_stdc" >&6; }
 if test $ac_cv_header_stdc = yes; then
 
-cat >>confdefs.h <<\_ACEOF
-#define STDC_HEADERS 1
-_ACEOF
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
 
 fi
 
 # On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_cxx_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+eval as_val=\$$as_ac_Header
+   if test "x$as_val" = x""yes; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
 
+fi
 
+done
 
 
 
 
 
+  for ac_header in $ac_header_list
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_cxx_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+eval as_val=\$$as_ac_Header
+   if test "x$as_val" = x""yes; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
 
+fi
 
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-		  inttypes.h stdint.h unistd.h
-do
-as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_header" >&5
-$as_echo_n "checking for $ac_header... " >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  eval "$as_ac_Header=yes"
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_Header=no"
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-ac_res=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-
-
-
-
-for ac_header in $ac_header_list
-do
-as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  { $as_echo "$as_me:$LINENO: checking for $ac_header" >&5
-$as_echo_n "checking for $ac_header... " >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-fi
-ac_res=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking $ac_header usability" >&5
-$as_echo_n "checking $ac_header usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking $ac_header presence" >&5
-$as_echo_n "checking $ac_header presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <$ac_header>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## -------------------------------- ##
-## Report this to dealii@dealii.org ##
-## -------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for $ac_header" >&5
-$as_echo_n "checking for $ac_header... " >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  eval "$as_ac_Header=\$ac_header_preproc"
-fi
-ac_res=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-
-fi
-as_val=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
+done
 
 
 
 
 
-
-
-
-
-  { $as_echo "$as_me:$LINENO: checking for bad socket functions/FPU interaction" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bad socket functions/FPU interaction" >&5
 $as_echo_n "checking for bad socket functions/FPU interaction... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -11703,20 +8962,13 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  if test "$cross_compiling" = yes; then
-  { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: cannot run test program while cross compiling
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot run test program while cross compiling
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+as_fn_error "cannot run test program while cross compiling
+See \`config.log' for more details." "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <unistd.h>
@@ -11738,69 +8990,40 @@ int main()
 }
 
 _ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+if ac_fn_cxx_try_run "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-$as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-( exit $ac_status )
-
-      { $as_echo "$as_me:$LINENO: result: yes. disabling socket functions" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes. disabling socket functions" >&5
 $as_echo "yes. disabling socket functions" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_BROKEN_SOCKETS 1
-_ACEOF
+$as_echo "#define DEAL_II_BROKEN_SOCKETS 1" >>confdefs.h
 
 
 fi
-rm -rf conftest.dSYM
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
 
 
 
 
-
-{ $as_echo "$as_me:$LINENO: result: " >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
 $as_echo "" >&6; }
-{ $as_echo "$as_me:$LINENO: result: ---------------- configuring F77 compilers ------------------" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ---------------- configuring F77 compilers ------------------" >&5
 $as_echo "---------------- configuring F77 compilers ------------------" >&6; }
 
 for ac_prog in gfortran f77 g77
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_F77+set}" = set; then
+if test "${ac_cv_path_F77+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $F77 in
@@ -11813,14 +9036,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_F77="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -11828,10 +9051,10 @@ esac
 fi
 F77=$ac_cv_path_F77
 if test -n "$F77"; then
-  { $as_echo "$as_me:$LINENO: result: $F77" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $F77" >&5
 $as_echo "$F77" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -11852,7 +9075,7 @@ if test "x$F77" != "x" ; then
       full_version=`echo "$G77_VERSION_STRING" | perl -pi -e 's/.*version (\d\.\d\.\d).*/\1/g;'`
       F77_VERSION=gcc`echo $full_version | perl -pi -e 's/(\d\.\d).*/\1/g;'`
 
-      { $as_echo "$as_me:$LINENO: result: F77 compiler is $CC_VERSION" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: F77 compiler is $CC_VERSION" >&5
 $as_echo "F77 compiler is $CC_VERSION" >&6; }
 
     else
@@ -11860,7 +9083,7 @@ $as_echo "F77 compiler is $CC_VERSION" >&6; }
             if test -n "`echo $F77_VERSION_STRING | grep \"XL Fortran for AIX\"`" ; then
 
                 F77_VERSION=AIXF77
-        { $as_echo "$as_me:$LINENO: result: F77 compiler is AIX Fortran77" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: F77 compiler is AIX Fortran77" >&5
 $as_echo "F77 compiler is AIX Fortran77" >&6; }
 
       else
@@ -11871,7 +9094,7 @@ $as_echo "F77 compiler is AIX Fortran77" >&6; }
                 -n "`echo $F77_VERSION_STRING | grep \"Sun WorkShop\"`" \
                 -o \
                 -n "`echo $F77_VERSION_STRING | grep \"Forte Developer\"`" ; then
-            	  { $as_echo "$as_me:$LINENO: result: F77 compiler is Sun WorkShop f77" >&5
+            	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: F77 compiler is Sun WorkShop f77" >&5
 $as_echo "F77 compiler is Sun WorkShop f77" >&6; }
   	  F77_VERSION="SunF77"
 
@@ -11879,7 +9102,7 @@ $as_echo "F77 compiler is Sun WorkShop f77" >&6; }
 
                               F77_VERSION_STRING=`($F77 -version 2>&1)`
   	  if test -n "`echo $F77_VERSION_STRING | grep MIPSpro`" ; then
-  	    { $as_echo "$as_me:$LINENO: result: F77 compiler is MIPSpro f77" >&5
+  	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: F77 compiler is MIPSpro f77" >&5
 $as_echo "F77 compiler is MIPSpro f77" >&6; }
   	    F77_VERSION="MIPSproF77"
 
@@ -11888,7 +9111,7 @@ $as_echo "F77 compiler is MIPSpro f77" >&6; }
             F77_VERSION_STRING=`($F77 -V 2>&1)`
             is_intel_ifc="`echo $F77_VERSION_STRING | grep 'Intel(R) Fortran'`"
 	    if test "x$is_intel_ifc" != "x" ; then
-  	      { $as_echo "$as_me:$LINENO: result: F77 compiler is Intel Fortran" >&5
+  	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: F77 compiler is Intel Fortran" >&5
 $as_echo "F77 compiler is Intel Fortran" >&6; }
               F77_VERSION=INTEL_F77
 
@@ -11896,7 +9119,7 @@ $as_echo "F77 compiler is Intel Fortran" >&6; }
 
 
                             F77_VERSION="UnknownF77"
-  	      { $as_echo "$as_me:$LINENO: result: F77 compiler is unkown. no flags set!" >&5
+  	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: F77 compiler is unkown. no flags set!" >&5
 $as_echo "F77 compiler is unkown. no flags set!" >&6; }
             fi
           fi
@@ -11928,18 +9151,14 @@ $as_echo "F77 compiler is unkown. no flags set!" >&6; }
                 ;;
         esac
 
-		{ $as_echo "$as_me:$LINENO: checking for e_wsfe in -lg2c" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for e_wsfe in -lg2c" >&5
 $as_echo_n "checking for e_wsfe in -lg2c... " >&6; }
-if test "${ac_cv_lib_g2c_e_wsfe+set}" = set; then
+if test "${ac_cv_lib_g2c_e_wsfe+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lg2c  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -11957,59 +9176,30 @@ return e_wsfe ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_g2c_e_wsfe=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_g2c_e_wsfe=no
+  ac_cv_lib_g2c_e_wsfe=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_g2c_e_wsfe" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_g2c_e_wsfe" >&5
 $as_echo "$ac_cv_lib_g2c_e_wsfe" >&6; }
-if test "x$ac_cv_lib_g2c_e_wsfe" = x""yes; then
+if test "x$ac_cv_lib_g2c_e_wsfe" = x""yes; then :
    F77LIBS="$F77LIBS -lg2c"
 fi
 
 
-					{ $as_echo "$as_me:$LINENO: checking for _gfortran_allocate in -lgfortran" >&5
+					{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for _gfortran_allocate in -lgfortran" >&5
 $as_echo_n "checking for _gfortran_allocate in -lgfortran... " >&6; }
-if test "${ac_cv_lib_gfortran__gfortran_allocate+set}" = set; then
+if test "${ac_cv_lib_gfortran__gfortran_allocate+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgfortran  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -12027,58 +9217,29 @@ return _gfortran_allocate ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_gfortran__gfortran_allocate=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_gfortran__gfortran_allocate=no
+  ac_cv_lib_gfortran__gfortran_allocate=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_gfortran__gfortran_allocate" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gfortran__gfortran_allocate" >&5
 $as_echo "$ac_cv_lib_gfortran__gfortran_allocate" >&6; }
-if test "x$ac_cv_lib_gfortran__gfortran_allocate" = x""yes; then
+if test "x$ac_cv_lib_gfortran__gfortran_allocate" = x""yes; then :
   found=1
 fi
 
-        { $as_echo "$as_me:$LINENO: checking for _gfortran_st_write_done in -lgfortran" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _gfortran_st_write_done in -lgfortran" >&5
 $as_echo_n "checking for _gfortran_st_write_done in -lgfortran... " >&6; }
-if test "${ac_cv_lib_gfortran__gfortran_st_write_done+set}" = set; then
+if test "${ac_cv_lib_gfortran__gfortran_st_write_done+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgfortran  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -12096,43 +9257,18 @@ return _gfortran_st_write_done ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_gfortran__gfortran_st_write_done=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_gfortran__gfortran_st_write_done=no
+  ac_cv_lib_gfortran__gfortran_st_write_done=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_gfortran__gfortran_st_write_done" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gfortran__gfortran_st_write_done" >&5
 $as_echo "$ac_cv_lib_gfortran__gfortran_st_write_done" >&6; }
-if test "x$ac_cv_lib_gfortran__gfortran_st_write_done" = x""yes; then
+if test "x$ac_cv_lib_gfortran__gfortran_st_write_done" = x""yes; then :
   found=1
 fi
 
@@ -12177,14 +9313,12 @@ fi
         F77LIBS="$F77LIBS"
 
         F77FLAGSPIC="unknown!"
-	{ $as_echo "$as_me:$LINENO: result: Unknown FORTRAN compiler has been disabled!" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Unknown FORTRAN compiler has been disabled!" >&5
 $as_echo "Unknown FORTRAN compiler has been disabled!" >&6; }
         ;;
 
         	    *)
-	{ { $as_echo "$as_me:$LINENO: error: No compiler options for F77 compiler \"$F77_VERSION\" specified: modification of aclocal.m4 necessary" >&5
-$as_echo "$as_me: error: No compiler options for F77 compiler \"$F77_VERSION\" specified: modification of aclocal.m4 necessary" >&2;}
-   { (exit 1); exit 1; }; }
+	as_fn_error "No compiler options for F77 compiler \"$F77_VERSION\" specified: modification of aclocal.m4 necessary" "$LINENO" 5
         ;;
   esac
 
@@ -12201,13 +9335,13 @@ fi
 
 
 
-{ $as_echo "$as_me:$LINENO: result: " >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
 $as_echo "" >&6; }
-{ $as_echo "$as_me:$LINENO: result: ---------------- configuring shared/static libs -------------" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ---------------- configuring shared/static libs -------------" >&5
 $as_echo "---------------- configuring shared/static libs -------------" >&6; }
 
 # Check whether --enable-shared was given.
-if test "${enable_shared+set}" = set; then
+if test "${enable_shared+set}" = set; then :
   enableval=$enable_shared; enableshared="$enableval"
 else
   enableshared=yes
@@ -12216,7 +9350,7 @@ fi
 
 case "$target" in
    *-aix4* | alpha*-linux* | alpha*-osf45* | hppa64-unknown-linux-gnu )
-	   { $as_echo "$as_me:$LINENO: WARNING: Shared libraries not supported on $target. Using static libs instead" >&5
+	   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Shared libraries not supported on $target. Using static libs instead" >&5
 $as_echo "$as_me: WARNING: Shared libraries not supported on $target. Using static libs instead" >&2;}
            static_lib_suffix=".a"
 	   enableshared=no
@@ -12250,22 +9384,20 @@ if test "x$enableshared" = "xyes" ; then
     *-apple-darwin* )
            SHLIBFLAGS="-dynamiclib"
 
-  { $as_echo "$as_me:$LINENO: checking for dynamic_cast problem with shared libs" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dynamic_cast problem with shared libs" >&5
 $as_echo_n "checking for dynamic_cast problem with shared libs... " >&6; }
 
   if (cd contrib/config/tests/darwin-dynamic-cast ; \
       $CXX -dynamiclib BaseClass.cpp -o libDynamicCastTestLib.dylib ; \
       $CXX -L. -lDynamicCastTestLib main.cc -o main ; \
       ./main) ; then
-    { $as_echo "$as_me:$LINENO: result: no" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; } ;
   else
-    { $as_echo "$as_me:$LINENO: result: yes" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; } ;
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_HAVE_DARWIN_DYNACAST_BUG 1
-_ACEOF
+$as_echo "#define DEAL_II_HAVE_DARWIN_DYNACAST_BUG 1" >>confdefs.h
 
     CXXFLAGSG="$CXXFLAGSG -mmacosx-version-min=10.4"
     CXXFLAGSO="$CXXFLAGSO -mmacosx-version-min=10.4"
@@ -12287,13 +9419,9 @@ _ACEOF
 
     OLD_LDFLAGS="$LDFLAGS"
   LDFLAGS="-Wl,-soname,libbase.so.6.2.1 $LDFLAGS $LDFLAGSPIC $SHLIBFLAGS"
-  { $as_echo "$as_me:$LINENO: checking whether compiler understands option -Wl,-soname" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler understands option -Wl,-soname" >&5
 $as_echo_n "checking whether compiler understands option -Wl,-soname... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
- /* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -12304,59 +9432,30 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
 
-     { $as_echo "$as_me:$LINENO: result: yes" >&5
+     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
      DEAL_II_LD_UNDERSTANDS_SONAME="yes"
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-     { $as_echo "$as_me:$LINENO: result: no" >&5
+     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
      DEAL_II_LD_UNDERSTANDS_SONAME="no"
 
 
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
   LDFLAGS="$OLD_LDFLAGS"
 
 
     OLD_LDFLAGS="$LDFLAGS"
   LDFLAGS="-Wl,-dynamic,-install_name -Wl,libbase.so.6.2.1 $LDFLAGS -shared"
-  { $as_echo "$as_me:$LINENO: checking whether compiler understands option -Wl,-dynamic,-install_name" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler understands option -Wl,-dynamic,-install_name" >&5
 $as_echo_n "checking whether compiler understands option -Wl,-dynamic,-install_name... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
- /* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -12367,47 +9466,22 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
 
-     { $as_echo "$as_me:$LINENO: result: yes" >&5
+     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
      DEAL_II_LD_UNDERSTANDS_DYLIB_INSTALL_NAME="yes"
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-     { $as_echo "$as_me:$LINENO: result: no" >&5
+     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
      DEAL_II_LD_UNDERSTANDS_DYLIB_INSTALL_NAME="no"
 
 
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
   LDFLAGS="$OLD_LDFLAGS"
 
 
@@ -12415,13 +9489,9 @@ fi
 
  OLD_LDFLAGS="$LDFLAGS"
   LDFLAGS="-Wl,-rpath,$DEAL_II_PATH/lib $LDFLAGS"
-  { $as_echo "$as_me:$LINENO: checking whether compiler understands option -Wl,-rpath" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler understands option -Wl,-rpath" >&5
 $as_echo_n "checking whether compiler understands option -Wl,-rpath... " >&6; }
-  cat >conftest.$ac_ext <<_ACEOF
- /* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -12432,46 +9502,21 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_link "$LINENO"; then :
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
      LD_PATH_OPTION="-Wl,-rpath "
      DEAL_II_LD_UNDERSTANDS_RPATH=yes
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	 { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
      LDFLAGS="$OLD_LDFLAGS"
      LD_PATH_OPTION="no"
 
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 
 
 
@@ -12482,9 +9527,9 @@ rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
 
 # Extract the first word of "ar", so it can be a program name with args.
 set dummy ar; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_AR+set}" = set; then
+if test "${ac_cv_prog_AR+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$AR"; then
@@ -12495,33 +9540,33 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_AR="ar"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 AR=$ac_cv_prog_AR
 if test -n "$AR"; then
-  { $as_echo "$as_me:$LINENO: result: $AR" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
 $as_echo "$AR" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
 
 # Extract the first word of "$AR", so it can be a program name with args.
 set dummy $AR; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_AR+set}" = set; then
+if test "${ac_cv_path_AR+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $AR in
@@ -12534,14 +9579,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_AR="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -12549,10 +9594,10 @@ esac
 fi
 AR=$ac_cv_path_AR
 if test -n "$AR"; then
-  { $as_echo "$as_me:$LINENO: result: $AR" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
 $as_echo "$AR" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -12560,9 +9605,9 @@ fi
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_RANLIB+set}" = set; then
+if test "${ac_cv_prog_RANLIB+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$RANLIB"; then
@@ -12573,24 +9618,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
-  { $as_echo "$as_me:$LINENO: result: $RANLIB" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
 $as_echo "$RANLIB" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -12600,9 +9645,9 @@ if test -z "$ac_cv_prog_RANLIB"; then
   ac_ct_RANLIB=$RANLIB
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then
+if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_RANLIB"; then
@@ -12613,24 +9658,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_ac_ct_RANLIB="ranlib"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
 if test -n "$ac_ct_RANLIB"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
 $as_echo "$ac_ct_RANLIB" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -12639,7 +9684,7 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
@@ -12652,9 +9697,9 @@ fi
 if test "$RANLIB" != ":" ; then
   # Extract the first word of "$RANLIB", so it can be a program name with args.
 set dummy $RANLIB; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_RANLIB+set}" = set; then
+if test "${ac_cv_path_RANLIB+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $RANLIB in
@@ -12667,14 +9712,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_RANLIB="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -12682,10 +9727,10 @@ esac
 fi
 RANLIB=$ac_cv_path_RANLIB
 if test -n "$RANLIB"; then
-  { $as_echo "$as_me:$LINENO: result: $RANLIB" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
 $as_echo "$RANLIB" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -12696,24 +9741,22 @@ fi
 
 
 
-{ $as_echo "$as_me:$LINENO: result: " >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
 $as_echo "" >&6; }
-{ $as_echo "$as_me:$LINENO: result: ---------------- configuring optional features --------------" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ---------------- configuring optional features --------------" >&5
 $as_echo "---------------- configuring optional features --------------" >&6; }
 
 # Check whether --enable-parser was given.
-if test "${enable_parser+set}" = set; then
+if test "${enable_parser+set}" = set; then :
   enableval=$enable_parser;  enableparser="$enableval"
 	        if test "x$enableval" = "xno" ; then
- 	          { $as_echo "$as_me:$LINENO: result: Function parser disabled" >&5
+ 	          { $as_echo "$as_me:${as_lineno-$LINENO}: result: Function parser disabled" >&5
 $as_echo "Function parser disabled" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_DISABLE_PARSER 1
-_ACEOF
+$as_echo "#define DEAL_II_DISABLE_PARSER 1" >>confdefs.h
 
                 else
- 	          { $as_echo "$as_me:$LINENO: result: Function parser enabled" >&5
+ 	          { $as_echo "$as_me:${as_lineno-$LINENO}: result: Function parser enabled" >&5
 $as_echo "Function parser enabled" >&6; }
 		fi
 else
@@ -12726,14 +9769,12 @@ fi
 
 
 # Check whether --enable-mgcompatibility was given.
-if test "${enable_mgcompatibility+set}" = set; then
+if test "${enable_mgcompatibility+set}" = set; then :
   enableval=$enable_mgcompatibility;  if test "x$enableval" = "xyes" ; then
-	    { $as_echo "$as_me:$LINENO: result: enable multigrid compatibility mode" >&5
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: enable multigrid compatibility mode" >&5
 $as_echo "enable multigrid compatibility mode" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_MULTIGRID_COMPATIBILITY 1
-_ACEOF
+$as_echo "#define DEAL_II_MULTIGRID_COMPATIBILITY 1" >>confdefs.h
 
 	  fi
 fi
@@ -12741,7 +9782,7 @@ fi
 
 
   # Check whether --enable-compat-blocker was given.
-if test "${enable_compat_blocker+set}" = set; then
+if test "${enable_compat_blocker+set}" = set; then :
   enableval=$enable_compat_blocker; enable_compat_blocker="$enableval"
 else
   enable_compat_blocker=""
@@ -12753,13 +9794,11 @@ fi
     for i in $disable_compat ; do
     case $i in
       mapping)
-        { $as_echo "$as_me:$LINENO: result: Disabling backward compatibility feature: \"$i\"" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: Disabling backward compatibility feature: \"$i\"" >&5
 $as_echo "Disabling backward compatibility feature: \"$i\"" >&6; }
         ;;
       *)
-        { { $as_echo "$as_me:$LINENO: error: Backward compatibility feature \"$i\" unknown" >&5
-$as_echo "$as_me: error: Backward compatibility feature \"$i\" unknown" >&2;}
-   { (exit 1); exit 1; }; }
+        as_fn_error "Backward compatibility feature \"$i\" unknown" "$LINENO" 5
         ;;
     esac
   done
@@ -12782,9 +9821,7 @@ _ACEOF
   	;;
 
       *)
-  	{ { $as_echo "$as_me:$LINENO: error: Backward compatibility feature \"$i\" unknown" >&5
-$as_echo "$as_me: error: Backward compatibility feature \"$i\" unknown" >&2;}
-   { (exit 1); exit 1; }; }
+  	as_fn_error "Backward compatibility feature \"$i\" unknown" "$LINENO" 5
   	;;
     esac
   done
@@ -12794,16 +9831,16 @@ $as_echo "$as_me: error: Backward compatibility feature \"$i\" unknown" >&2;}
 
 
 
-{ $as_echo "$as_me:$LINENO: result: " >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
 $as_echo "" >&6; }
-{ $as_echo "$as_me:$LINENO: result: ---------------- configuring additional libs ----------------" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ---------------- configuring additional libs ----------------" >&5
 $as_echo "---------------- configuring additional libs ----------------" >&6; }
 
 BOOST_INCLUDE_DIR="-I$DEAL_II_PATH/contrib/boost/include"
 
 
 # Check whether --with-boost was given.
-if test "${with_boost+set}" = set; then
+if test "${with_boost+set}" = set; then :
   withval=$with_boost;
   if test "x$withval" != "xyes" ; then
     BOOST_INCLUDE_DIR="-I$withval"
@@ -12821,432 +9858,33 @@ fi
   CPPFLAGS="$BOOST_INCLUDE_DIR $CPPFLAGS"
   LDFLAGS="$BOOST_LIB_DIR $LDFLAGS"
 
-  if test "${ac_cv_header_boost_shared_ptr_hpp+set}" = set; then
-  { $as_echo "$as_me:$LINENO: checking for boost/shared_ptr.hpp" >&5
-$as_echo_n "checking for boost/shared_ptr.hpp... " >&6; }
-if test "${ac_cv_header_boost_shared_ptr_hpp+set}" = set; then
-  $as_echo_n "(cached) " >&6
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_boost_shared_ptr_hpp" >&5
-$as_echo "$ac_cv_header_boost_shared_ptr_hpp" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking boost/shared_ptr.hpp usability" >&5
-$as_echo_n "checking boost/shared_ptr.hpp usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <boost/shared_ptr.hpp>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
+  ac_fn_cxx_check_header_mongrel "$LINENO" "boost/shared_ptr.hpp" "ac_cv_header_boost_shared_ptr_hpp" "$ac_includes_default"
+if test "x$ac_cv_header_boost_shared_ptr_hpp" = x""yes; then :
+
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+  as_fn_error "Your boost installation is incomplete!" "$LINENO" 5
+fi
+
 
-	ac_header_compiler=no
+  ac_fn_cxx_check_header_mongrel "$LINENO" "boost/type_traits.hpp" "ac_cv_header_boost_type_traits_hpp" "$ac_includes_default"
+if test "x$ac_cv_header_boost_type_traits_hpp" = x""yes; then :
+
+else
+  as_fn_error "Your boost installation is incomplete!" "$LINENO" 5
 fi
 
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
 
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking boost/shared_ptr.hpp presence" >&5
-$as_echo_n "checking boost/shared_ptr.hpp presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <boost/shared_ptr.hpp>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: boost/shared_ptr.hpp: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: boost/shared_ptr.hpp: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/shared_ptr.hpp: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: boost/shared_ptr.hpp: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: boost/shared_ptr.hpp: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: boost/shared_ptr.hpp: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/shared_ptr.hpp:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: boost/shared_ptr.hpp:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/shared_ptr.hpp: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: boost/shared_ptr.hpp: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/shared_ptr.hpp:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: boost/shared_ptr.hpp:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/shared_ptr.hpp: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: boost/shared_ptr.hpp: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/shared_ptr.hpp: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: boost/shared_ptr.hpp: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## -------------------------------- ##
-## Report this to dealii@dealii.org ##
-## -------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for boost/shared_ptr.hpp" >&5
-$as_echo_n "checking for boost/shared_ptr.hpp... " >&6; }
-if test "${ac_cv_header_boost_shared_ptr_hpp+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_header_boost_shared_ptr_hpp=$ac_header_preproc
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_boost_shared_ptr_hpp" >&5
-$as_echo "$ac_cv_header_boost_shared_ptr_hpp" >&6; }
-
-fi
-if test "x$ac_cv_header_boost_shared_ptr_hpp" = x""yes; then
-  :
-else
-  { { $as_echo "$as_me:$LINENO: error: Your boost installation is incomplete!" >&5
-$as_echo "$as_me: error: Your boost installation is incomplete!" >&2;}
-   { (exit 1); exit 1; }; }
-fi
-
-
-  if test "${ac_cv_header_boost_type_traits_hpp+set}" = set; then
-  { $as_echo "$as_me:$LINENO: checking for boost/type_traits.hpp" >&5
-$as_echo_n "checking for boost/type_traits.hpp... " >&6; }
-if test "${ac_cv_header_boost_type_traits_hpp+set}" = set; then
-  $as_echo_n "(cached) " >&6
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_boost_type_traits_hpp" >&5
-$as_echo "$ac_cv_header_boost_type_traits_hpp" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking boost/type_traits.hpp usability" >&5
-$as_echo_n "checking boost/type_traits.hpp usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <boost/type_traits.hpp>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking boost/type_traits.hpp presence" >&5
-$as_echo_n "checking boost/type_traits.hpp presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <boost/type_traits.hpp>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: boost/type_traits.hpp: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: boost/type_traits.hpp: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/type_traits.hpp: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: boost/type_traits.hpp: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: boost/type_traits.hpp: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: boost/type_traits.hpp: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/type_traits.hpp:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: boost/type_traits.hpp:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/type_traits.hpp: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: boost/type_traits.hpp: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/type_traits.hpp:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: boost/type_traits.hpp:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/type_traits.hpp: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: boost/type_traits.hpp: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/type_traits.hpp: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: boost/type_traits.hpp: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## -------------------------------- ##
-## Report this to dealii@dealii.org ##
-## -------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for boost/type_traits.hpp" >&5
-$as_echo_n "checking for boost/type_traits.hpp... " >&6; }
-if test "${ac_cv_header_boost_type_traits_hpp+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_header_boost_type_traits_hpp=$ac_header_preproc
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_boost_type_traits_hpp" >&5
-$as_echo "$ac_cv_header_boost_type_traits_hpp" >&6; }
-
-fi
-if test "x$ac_cv_header_boost_type_traits_hpp" = x""yes; then
-  :
-else
-  { { $as_echo "$as_me:$LINENO: error: Your boost installation is incomplete!" >&5
-$as_echo "$as_me: error: Your boost installation is incomplete!" >&2;}
-   { (exit 1); exit 1; }; }
-fi
-
-
-  if test "${ac_cv_header_boost_tuple_tuple_hpp+set}" = set; then
-  { $as_echo "$as_me:$LINENO: checking for boost/tuple/tuple.hpp" >&5
-$as_echo_n "checking for boost/tuple/tuple.hpp... " >&6; }
-if test "${ac_cv_header_boost_tuple_tuple_hpp+set}" = set; then
-  $as_echo_n "(cached) " >&6
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_boost_tuple_tuple_hpp" >&5
-$as_echo "$ac_cv_header_boost_tuple_tuple_hpp" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking boost/tuple/tuple.hpp usability" >&5
-$as_echo_n "checking boost/tuple/tuple.hpp usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <boost/tuple/tuple.hpp>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
+  ac_fn_cxx_check_header_mongrel "$LINENO" "boost/tuple/tuple.hpp" "ac_cv_header_boost_tuple_tuple_hpp" "$ac_includes_default"
+if test "x$ac_cv_header_boost_tuple_tuple_hpp" = x""yes; then :
 
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking boost/tuple/tuple.hpp presence" >&5
-$as_echo_n "checking boost/tuple/tuple.hpp presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <boost/tuple/tuple.hpp>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: boost/tuple/tuple.hpp: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: boost/tuple/tuple.hpp: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/tuple/tuple.hpp: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: boost/tuple/tuple.hpp: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: boost/tuple/tuple.hpp: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: boost/tuple/tuple.hpp: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/tuple/tuple.hpp:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: boost/tuple/tuple.hpp:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/tuple/tuple.hpp: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: boost/tuple/tuple.hpp: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/tuple/tuple.hpp:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: boost/tuple/tuple.hpp:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/tuple/tuple.hpp: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: boost/tuple/tuple.hpp: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: boost/tuple/tuple.hpp: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: boost/tuple/tuple.hpp: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## -------------------------------- ##
-## Report this to dealii@dealii.org ##
-## -------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for boost/tuple/tuple.hpp" >&5
-$as_echo_n "checking for boost/tuple/tuple.hpp... " >&6; }
-if test "${ac_cv_header_boost_tuple_tuple_hpp+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_header_boost_tuple_tuple_hpp=$ac_header_preproc
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_boost_tuple_tuple_hpp" >&5
-$as_echo "$ac_cv_header_boost_tuple_tuple_hpp" >&6; }
-
-fi
-if test "x$ac_cv_header_boost_tuple_tuple_hpp" = x""yes; then
-  :
 else
-  { { $as_echo "$as_me:$LINENO: error: Your boost installation is incomplete!" >&5
-$as_echo "$as_me: error: Your boost installation is incomplete!" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "Your boost installation is incomplete!" "$LINENO" 5
 fi
 
 
 
   if test "x$GXX" = "xyes" ; then
-    { $as_echo "$as_me:$LINENO: checking for boost::shared_ptr assignment operator= template buglet" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for boost::shared_ptr assignment operator= template buglet" >&5
 $as_echo_n "checking for boost::shared_ptr assignment operator= template buglet... " >&6; }
     ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -13255,11 +9893,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
     CXXFLAGS="-Wsynth -Werror"
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #       include <boost/shared_ptr.hpp>
@@ -13275,39 +9909,18 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	CXXFLAGSG="`echo $CXXFLAGSG | perl -pi -e 's/-Wsynth\s*//g;'`"
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   fi
 
@@ -13315,28 +9928,26 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
 
-    { $as_echo "$as_me:$LINENO: checking for PETSc library directory" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PETSc library directory" >&5
 $as_echo_n "checking for PETSc library directory... " >&6; }
 
 
 # Check whether --with-petsc was given.
-if test "${with_petsc+set}" = set; then
+if test "${with_petsc+set}" = set; then :
   withval=$with_petsc;
                 if test "x$withval" = "xno" ; then
-          { $as_echo "$as_me:$LINENO: result: explicitly disabled" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: explicitly disabled" >&5
 $as_echo "explicitly disabled" >&6; }
           USE_CONTRIB_PETSC=no
         else
 	  USE_CONTRIB_PETSC=yes
           DEAL_II_PETSC_DIR="$withval"
-	  { $as_echo "$as_me:$LINENO: result: $DEAL_II_PETSC_DIR" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_PETSC_DIR" >&5
 $as_echo "$DEAL_II_PETSC_DIR" >&6; }
 
                     if test ! -d $DEAL_II_PETSC_DIR/include \
                ; then
-            { { $as_echo "$as_me:$LINENO: error: Path to PETSc specified with --with-petsc does not point to a complete PETSc installation" >&5
-$as_echo "$as_me: error: Path to PETSc specified with --with-petsc does not point to a complete PETSc installation" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "Path to PETSc specified with --with-petsc does not point to a complete PETSc installation" "$LINENO" 5
 	  fi
         fi
 
@@ -13345,19 +9956,17 @@ else
                 if test "x$PETSC_DIR" != "x" ; then
   	  USE_CONTRIB_PETSC=yes
           DEAL_II_PETSC_DIR="$PETSC_DIR"
-	  { $as_echo "$as_me:$LINENO: result: $DEAL_II_PETSC_DIR" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_PETSC_DIR" >&5
 $as_echo "$DEAL_II_PETSC_DIR" >&6; }
 
                     if test ! -d $DEAL_II_PETSC_DIR/include \
                ; then
-            { { $as_echo "$as_me:$LINENO: error: The path to PETSc specified in the PETSC_DIR environment variable does not point to a complete PETSc installation" >&5
-$as_echo "$as_me: error: The path to PETSc specified in the PETSC_DIR environment variable does not point to a complete PETSc installation" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "The path to PETSc specified in the PETSC_DIR environment variable does not point to a complete PETSc installation" "$LINENO" 5
 	  fi
         else
 	  USE_CONTRIB_PETSC=no
           DEAL_II_PETSC_DIR=""
-          { $as_echo "$as_me:$LINENO: result: not found" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
 $as_echo "not found" >&6; }
         fi
 
@@ -13365,23 +9974,19 @@ fi
 
   if test "$USE_CONTRIB_PETSC" = "yes" ; then
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_PETSC 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_PETSC 1" >>confdefs.h
 
 
                         DEAL_II_DEFINE_DEAL_II_USE_PETSC=DEAL_II_USE_PETSC
 
 
-cat >>confdefs.h <<\_ACEOF
-#define PETSC_SKIP_UNDERSCORE_CHKERR 1
-_ACEOF
+$as_echo "#define PETSC_SKIP_UNDERSCORE_CHKERR 1" >>confdefs.h
 
   fi
 
     if test "$USE_CONTRIB_PETSC" = "yes" ; then
 
-  { $as_echo "$as_me:$LINENO: checking for PETSc version" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PETSc version" >&5
 $as_echo_n "checking for PETSc version... " >&6; }
   DEAL_II_PETSC_VERSION_MAJOR=`cat $DEAL_II_PETSC_DIR/include/petscversion.h \
                                | grep "#define PETSC_VERSION_MAJOR" \
@@ -13403,29 +10008,27 @@ $as_echo_n "checking for PETSc version... " >&6; }
     PETSC_VERSION+=""
   fi
 
-  { $as_echo "$as_me:$LINENO: result: $PETSC_VERSION" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PETSC_VERSION" >&5
 $as_echo "$PETSC_VERSION" >&6; }
 
 
-  { $as_echo "$as_me:$LINENO: checking for PETSc library architecture" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PETSc library architecture" >&5
 $as_echo_n "checking for PETSc library architecture... " >&6; }
 
 
 # Check whether --with-petsc-arch was given.
-if test "${with_petsc_arch+set}" = set; then
+if test "${with_petsc_arch+set}" = set; then :
   withval=$with_petsc_arch; DEAL_II_PETSC_ARCH="$withval"
-               { $as_echo "$as_me:$LINENO: result: $DEAL_II_PETSC_ARCH" >&5
+               { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_PETSC_ARCH" >&5
 $as_echo "$DEAL_II_PETSC_ARCH" >&6; }
 
 else
                  if test "x$PETSC_ARCH" != "x" ; then
                  DEAL_II_PETSC_ARCH="$PETSC_ARCH"
-                 { $as_echo "$as_me:$LINENO: result: $DEAL_II_PETSC_ARCH" >&5
+                 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_PETSC_ARCH" >&5
 $as_echo "$DEAL_II_PETSC_ARCH" >&6; }
                else
-                 { { $as_echo "$as_me:$LINENO: error: If PETSc is used, you must specify the architecture either through the PETSC_ARCH environment variable, or through the --with-petsc-arch flag" >&5
-$as_echo "$as_me: error: If PETSc is used, you must specify the architecture either through the PETSC_ARCH environment variable, or through the --with-petsc-arch flag" >&2;}
-   { (exit 1); exit 1; }; }
+                 as_fn_error "If PETSc is used, you must specify the architecture either through the PETSC_ARCH environment variable, or through the --with-petsc-arch flag" "$LINENO" 5
                fi
 
 fi
@@ -13436,28 +10039,22 @@ fi
                 case "${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" in
       2.3*)         if test ! -d $DEAL_II_PETSC_DIR/lib/$DEAL_II_PETSC_ARCH \
            ; then
-          { { $as_echo "$as_me:$LINENO: error: PETSc has not been compiled for the architecture specified with --with-petsc-arch" >&5
-$as_echo "$as_me: error: PETSc has not been compiled for the architecture specified with --with-petsc-arch" >&2;}
-   { (exit 1); exit 1; }; }
+          as_fn_error "PETSc has not been compiled for the architecture specified with --with-petsc-arch" "$LINENO" 5
         fi
         ;;
       3.*)         if test ! -d $DEAL_II_PETSC_DIR/$DEAL_II_PETSC_ARCH/lib \
            ; then
-          { { $as_echo "$as_me:$LINENO: error: PETSc has not been compiled for the architecture specified with --with-petsc-arch" >&5
-$as_echo "$as_me: error: PETSc has not been compiled for the architecture specified with --with-petsc-arch" >&2;}
-   { (exit 1); exit 1; }; }
+          as_fn_error "PETSc has not been compiled for the architecture specified with --with-petsc-arch" "$LINENO" 5
         fi
         ;;
-      *)            { { $as_echo "$as_me:$LINENO: error: Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" >&5
-$as_echo "$as_me: error: Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" >&2;}
-   { (exit 1); exit 1; }; }
+      *)            as_fn_error "Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" "$LINENO" 5
 	;;
     esac
   fi
 
 
 
-  { $as_echo "$as_me:$LINENO: checking for PETSc libmpiuni library" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PETSc libmpiuni library" >&5
 $as_echo_n "checking for PETSc libmpiuni library... " >&6; }
   case "${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" in
     2.3*)       if test -f $DEAL_II_PETSC_DIR/lib/$DEAL_II_PETSC_ARCH/libmpiuni.a ; then
@@ -13468,32 +10065,26 @@ $as_echo_n "checking for PETSc libmpiuni library... " >&6; }
         DEAL_II_PETSC_MPIUNI_LIB="$DEAL_II_PETSC_DIR/$DEAL_II_PETSC_ARCH/lib/libmpiuni.a"
       fi
       ;;
-    *)          { { $as_echo "$as_me:$LINENO: error: Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" >&5
-$as_echo "$as_me: error: Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" >&2;}
-   { (exit 1); exit 1; }; }
+    *)          as_fn_error "Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" "$LINENO" 5
     ;;
   esac
 
   if test "$DEAL_II_PETSC_MPIUNI_LIB" = "" ; then
-     { $as_echo "$as_me:$LINENO: result: not found" >&5
+     { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
 $as_echo "not found" >&6; }
   else
-     { $as_echo "$as_me:$LINENO: result: $DEAL_II_PETSC_MPIUNI_LIB" >&5
+     { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_PETSC_MPIUNI_LIB" >&5
 $as_echo "$DEAL_II_PETSC_MPIUNI_LIB" >&6; }
   fi
 
 
-    { $as_echo "$as_me:$LINENO: checking for consistency of PETSc and deal.II MPI settings" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for consistency of PETSc and deal.II MPI settings" >&5
 $as_echo_n "checking for consistency of PETSc and deal.II MPI settings... " >&6; }
 
   if test "x$DEAL_II_USE_MPI" = "xyes" ; then
 
               case "${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" in
-      2.3*)         cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+      2.3*)         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include "$DEAL_II_PETSC_DIR/bmake/$DEAL_II_PETSC_ARCH/petscconf.h"
 
@@ -13508,44 +10099,16 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	{ { $as_echo "$as_me:$LINENO: error: PETSc was not built for MPI, but deal.II is!
-        " >&5
-$as_echo "$as_me: error: PETSc was not built for MPI, but deal.II is!
-        " >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "PETSc was not built for MPI, but deal.II is!
+        " "$LINENO" 5
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
       ;;
-      3.*)         cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+      3.*)         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include "$DEAL_II_PETSC_DIR/$DEAL_II_PETSC_ARCH/include/petscconf.h"
 
@@ -13560,51 +10123,21 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	{ { $as_echo "$as_me:$LINENO: error: PETSc was not built for MPI, but deal.II is!
-        " >&5
-$as_echo "$as_me: error: PETSc was not built for MPI, but deal.II is!
-        " >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "PETSc was not built for MPI, but deal.II is!
+        " "$LINENO" 5
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
       ;;
-      *)         { { $as_echo "$as_me:$LINENO: error: Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" >&5
-$as_echo "$as_me: error: Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" >&2;}
-   { (exit 1); exit 1; }; }
+      *)         as_fn_error "Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" "$LINENO" 5
       ;;
     esac
   else
     case "${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" in
-      2.3*)         cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+      2.3*)         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include "$DEAL_II_PETSC_DIR/bmake/$DEAL_II_PETSC_ARCH/petscconf.h"
 
@@ -13619,44 +10152,16 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	{ { $as_echo "$as_me:$LINENO: error: PETSc was not built for MPI, but deal.II is!
-        " >&5
-$as_echo "$as_me: error: PETSc was not built for MPI, but deal.II is!
-        " >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "PETSc was not built for MPI, but deal.II is!
+        " "$LINENO" 5
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
       ;;
-      3.*)         cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+      3.*)         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include "$DEAL_II_PETSC_DIR/$DEAL_II_PETSC_ARCH/include/petscconf.h"
 
@@ -13670,41 +10175,16 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	{ { $as_echo "$as_me:$LINENO: error: PETSc was not built for MPI, but deal.II is!" >&5
-$as_echo "$as_me: error: PETSc was not built for MPI, but deal.II is!" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "PETSc was not built for MPI, but deal.II is!" "$LINENO" 5
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
       ;;
-      *)         { { $as_echo "$as_me:$LINENO: error: Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" >&5
-$as_echo "$as_me: error: Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" >&2;}
-   { (exit 1); exit 1; }; }
+      *)         as_fn_error "Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" "$LINENO" 5
       ;;
     esac
   fi
@@ -13712,25 +10192,23 @@ $as_echo "$as_me: error: Unknown PETSc version ${DEAL_II_PETSC_VERSION_MAJOR}.${
 
   case "${DEAL_II_PETSC_VERSION_MAJOR}.${DEAL_II_PETSC_VERSION_MINOR}.${DEAL_II_PETSC_VERSION_SUBMINOR}" in
     3.1*)
-      { $as_echo "$as_me:$LINENO: checking for PETSc scalar complex" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PETSc scalar complex" >&5
 $as_echo_n "checking for PETSc scalar complex... " >&6; }
       DEAL_II_PETSC_COMPLEX=`cat $DEAL_II_PETSC_DIR/$DEAL_II_PETSC_ARCH/include/petscconf.h \
                                | grep "#define PETSC_USE_COMPLEX" \
                                | perl -pi -e 's/.*COMPLEX\s+//g;'`
       if test "$DEAL_II_PETSC_COMPLEX" = "1" ; then
-         { $as_echo "$as_me:$LINENO: result: yes" >&5
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
       else
-         { $as_echo "$as_me:$LINENO: result: no" >&5
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
       fi
 
                   if test "$USE_CONTRIB_PETSC" = "yes" ; then
         if test "$DEAL_II_PETSC_COMPLEX" = "1" ; then
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_PETSC_COMPLEX 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_PETSC_COMPLEX 1" >>confdefs.h
 
       fi fi
     ;;
@@ -13762,35 +10240,31 @@ _ACEOF
 
 
 
-  { $as_echo "$as_me:$LINENO: checking for SLEPc include directory" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SLEPc include directory" >&5
 $as_echo_n "checking for SLEPc include directory... " >&6; }
 
 # Check whether --with-slepc was given.
-if test "${with_slepc+set}" = set; then
+if test "${with_slepc+set}" = set; then :
   withval=$with_slepc;                if test "x$withval" = "xno" ; then
-                 { $as_echo "$as_me:$LINENO: result: explicitly disabled" >&5
+                 { $as_echo "$as_me:${as_lineno-$LINENO}: result: explicitly disabled" >&5
 $as_echo "explicitly disabled" >&6; }
                  USE_CONTRIB_SLEPC=no
                else
                  USE_CONTRIB_SLEPC=yes
                  DEAL_II_SLEPC_DIR="$withval"
-                 { $as_echo "$as_me:$LINENO: result: $DEAL_II_SLEPC_DIR" >&5
+                 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_SLEPC_DIR" >&5
 $as_echo "$DEAL_II_SLEPC_DIR" >&6; }
 
                                 if test ! -d $DEAL_II_SLEPC_DIR \
                     -o ! -d $DEAL_II_SLEPC_DIR/include \
                     ; then
-                 { { $as_echo "$as_me:$LINENO: error: Path to SLEPc specified with --with-slepc does not point to a complete SLEPc installation" >&5
-$as_echo "$as_me: error: Path to SLEPc specified with --with-slepc does not point to a complete SLEPc installation" >&2;}
-   { (exit 1); exit 1; }; }
+                 as_fn_error "Path to SLEPc specified with --with-slepc does not point to a complete SLEPc installation" "$LINENO" 5
 	       fi
 
 	       if test ! -d $DEAL_II_SLEPC_DIR/$DEAL_II_PETSC_ARCH \
                     -o ! -d $DEAL_II_SLEPC_DIR/$DEAL_II_PETSC_ARCH/lib \
                     ; then
-      	    { { $as_echo "$as_me:$LINENO: error: SLEPc has not been compiled for the PETSc architecture" >&5
-$as_echo "$as_me: error: SLEPc has not been compiled for the PETSc architecture" >&2;}
-   { (exit 1); exit 1; }; }
+      	    as_fn_error "SLEPc has not been compiled for the PETSc architecture" "$LINENO" 5
                fi
                fi
 
@@ -13798,20 +10272,18 @@ else
                  if test "x$SLEPC_DIR" != "x" ; then
                  USE_CONTRIB_SLEPC=yes
                  DEAL_II_SLEPC_DIR="$SLEPC_DIR"
-                 { $as_echo "$as_me:$LINENO: result: $DEAL_II_SLEPC_DIR" >&5
+                 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_SLEPC_DIR" >&5
 $as_echo "$DEAL_II_SLEPC_DIR" >&6; }
 
                               if test ! -d $DEAL_II_SLEPC_DIR \
                     -o ! -d $DEAL_II_SLEPC_DIR/include \
                     ; then
-                 { { $as_echo "$as_me:$LINENO: error: The path to SLEPc specified in the SLEPC_DIR environment variable does not point to a complete SLEPc installation" >&5
-$as_echo "$as_me: error: The path to SLEPc specified in the SLEPC_DIR environment variable does not point to a complete SLEPc installation" >&2;}
-   { (exit 1); exit 1; }; }
+                 as_fn_error "The path to SLEPc specified in the SLEPC_DIR environment variable does not point to a complete SLEPc installation" "$LINENO" 5
 	       fi
                else
                  USE_CONTRIB_SLEPC=no
                  DEAL_II_SLEPC_DIR=""
-                 { $as_echo "$as_me:$LINENO: result: not found" >&5
+                 { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
 $as_echo "not found" >&6; }
                fi
 
@@ -13820,9 +10292,7 @@ fi
 
   if test "$USE_CONTRIB_SLEPC" = "yes" ; then
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_SLEPC 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_SLEPC 1" >>confdefs.h
 
 
                         DEAL_II_DEFINE_DEAL_II_USE_SLEPC=DEAL_II_USE_SLEPC
@@ -13831,7 +10301,7 @@ _ACEOF
     if test "$USE_CONTRIB_SLEPC" = "yes" \
        ; then
 
-  { $as_echo "$as_me:$LINENO: checking for SLEPc version" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SLEPc version" >&5
 $as_echo_n "checking for SLEPc version... " >&6; }
   DEAL_II_SLEPC_VERSION_MAJOR=`cat $DEAL_II_SLEPC_DIR/include/slepcversion.h \
                                | grep "#define SLEPC_VERSION_MAJOR" \
@@ -13852,15 +10322,13 @@ $as_echo_n "checking for SLEPc version... " >&6; }
   else
     SLEPC_VERSION+=""
   fi
-  { $as_echo "$as_me:$LINENO: result: $SLEPC_VERSION" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $SLEPC_VERSION" >&5
 $as_echo "$SLEPC_VERSION" >&6; }
 
           if test "${PETSC_VERSION}" != "${SLEPC_VERSION}" \
        -o "${PETSC_RELEASE}" != "${SLEPC_RELEASE}" \
        ; then
-      	  { { $as_echo "$as_me:$LINENO: error: If SLEPc is used, you must use the same version number as your PETSc Installation" >&5
-$as_echo "$as_me: error: If SLEPc is used, you must use the same version number as your PETSc Installation" >&2;}
-   { (exit 1); exit 1; }; }
+      	  as_fn_error "If SLEPc is used, you must use the same version number as your PETSc Installation" "$LINENO" 5
   fi
 
 
@@ -13876,28 +10344,26 @@ $as_echo "$as_me: error: If SLEPc is used, you must use the same version number
 
 
 
- { $as_echo "$as_me:$LINENO: checking for Trilinos directory" >&5
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Trilinos directory" >&5
 $as_echo_n "checking for Trilinos directory... " >&6; }
 
 
 # Check whether --with-trilinos was given.
-if test "${with_trilinos+set}" = set; then
+if test "${with_trilinos+set}" = set; then :
   withval=$with_trilinos;
                 if test "x$withval" = "xno" ; then
-          { $as_echo "$as_me:$LINENO: result: explicitly disabled" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: explicitly disabled" >&5
 $as_echo "explicitly disabled" >&6; }
           USE_CONTRIB_TRILINOS=no
         else
 	  USE_CONTRIB_TRILINOS=yes
           DEAL_II_TRILINOS_DIR="$withval"
-	  { $as_echo "$as_me:$LINENO: result: $DEAL_II_TRILINOS_DIR" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_TRILINOS_DIR" >&5
 $as_echo "$DEAL_II_TRILINOS_DIR" >&6; }
 
                     if test ! -d $DEAL_II_TRILINOS_DIR/include \
                -o ! -d $DEAL_II_TRILINOS_DIR/lib ; then
-            { { $as_echo "$as_me:$LINENO: error: Path to Trilinos specified with --with-trilinos does not point to a complete Trilinos installation" >&5
-$as_echo "$as_me: error: Path to Trilinos specified with --with-trilinos does not point to a complete Trilinos installation" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "Path to Trilinos specified with --with-trilinos does not point to a complete Trilinos installation" "$LINENO" 5
 	  fi
 
 	  DEAL_II_TRILINOS_INCDIR="$DEAL_II_TRILINOS_DIR/include"
@@ -13909,48 +10375,44 @@ else
                 if test "x$TRILINOS_DIR" != "x" ; then
   	  USE_CONTRIB_TRILINOS=yes
           DEAL_II_TRILINOS_DIR="$TRILINOS_DIR"
-	  { $as_echo "$as_me:$LINENO: result: $DEAL_II_TRILINOS_DIR" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_TRILINOS_DIR" >&5
 $as_echo "$DEAL_II_TRILINOS_DIR" >&6; }
 
                     if test ! -d $DEAL_II_TRILINOS_DIR/include \
                -o ! -d $DEAL_II_TRILINOS_DIR/lib ; then
-            { { $as_echo "$as_me:$LINENO: error: The path to Trilinos specified in the TRILINOS_DIR environment variable does not point to a complete Trilinos installation" >&5
-$as_echo "$as_me: error: The path to Trilinos specified in the TRILINOS_DIR environment variable does not point to a complete Trilinos installation" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "The path to Trilinos specified in the TRILINOS_DIR environment variable does not point to a complete Trilinos installation" "$LINENO" 5
 	  fi
 	  DEAL_II_TRILINOS_INCDIR="$DEAL_II_TRILINOS_DIR/include"
 	  DEAL_II_TRILINOS_LIBDIR="$DEAL_II_TRILINOS_DIR/lib"
         else
 	  USE_CONTRIB_TRILINOS=no
           DEAL_II_TRILINOS_DIR=""
-          { $as_echo "$as_me:$LINENO: result: not found" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
 $as_echo "not found" >&6; }
         fi
 
 fi
 
 
-  { $as_echo "$as_me:$LINENO: checking for Trilinos header directory" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Trilinos header directory" >&5
 $as_echo_n "checking for Trilinos header directory... " >&6; }
 
 
 # Check whether --with-trilinos-include was given.
-if test "${with_trilinos_include+set}" = set; then
+if test "${with_trilinos_include+set}" = set; then :
   withval=$with_trilinos_include;
                 if test "x$withval" = "xno" ; then
-          { $as_echo "$as_me:$LINENO: result: explicitly disabled" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: explicitly disabled" >&5
 $as_echo "explicitly disabled" >&6; }
           USE_CONTRIB_TRILINOS=no
         else
 	  USE_CONTRIB_TRILINOS=yes
           DEAL_II_TRILINOS_INCDIR="$withval"
-	  { $as_echo "$as_me:$LINENO: result: $DEAL_II_TRILINOS_INCDIR" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_TRILINOS_INCDIR" >&5
 $as_echo "$DEAL_II_TRILINOS_INCDIR" >&6; }
 
                     if test ! -d $DEAL_II_TRILINOS_INCDIR ; then
-            { { $as_echo "$as_me:$LINENO: error: Path to Trilinos specified with --with-trilinos-include does not point to a complete Trilinos installation" >&5
-$as_echo "$as_me: error: Path to Trilinos specified with --with-trilinos-include does not point to a complete Trilinos installation" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "Path to Trilinos specified with --with-trilinos-include does not point to a complete Trilinos installation" "$LINENO" 5
 	  fi
         fi
 
@@ -13959,22 +10421,20 @@ else
                 if test "x$TRILINOS_INCDIR" != "x" ; then
   	  USE_CONTRIB_TRILINOS=yes
 	  DEAL_II_TRILINOS_INCDIR="$TRILINOS_INCDIR"
-	  { $as_echo "$as_me:$LINENO: result: $DEAL_II_TRILINOS_INCDIR" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_TRILINOS_INCDIR" >&5
 $as_echo "$DEAL_II_TRILINOS_INCDIR" >&6; }
 
                     if test ! -d $DEAL_II_TRILINOS_INCDIR ; then
-            { { $as_echo "$as_me:$LINENO: error: The path to Trilinos includes specified in the TRILINOS_INCDIR environment variable does not point to a valid directory" >&5
-$as_echo "$as_me: error: The path to Trilinos includes specified in the TRILINOS_INCDIR environment variable does not point to a valid directory" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "The path to Trilinos includes specified in the TRILINOS_INCDIR environment variable does not point to a valid directory" "$LINENO" 5
 	  fi
         else
           	  	            if test "x${USE_CONTRIB_TRILINOS}" != "xyes" ; then
 	    USE_CONTRIB_TRILINOS=no
             DEAL_II_TRILINOS_INCDIR=""
-            { $as_echo "$as_me:$LINENO: result: not found" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
 $as_echo "not found" >&6; }
           else
-            { $as_echo "$as_me:$LINENO: result: not explicitly specified" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: not explicitly specified" >&5
 $as_echo "not explicitly specified" >&6; }
           fi
         fi
@@ -13982,27 +10442,25 @@ $as_echo "not explicitly specified" >&6; }
 fi
 
 
-  { $as_echo "$as_me:$LINENO: checking for Trilinos library directory" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Trilinos library directory" >&5
 $as_echo_n "checking for Trilinos library directory... " >&6; }
 
 
 # Check whether --with-trilinos-libs was given.
-if test "${with_trilinos_libs+set}" = set; then
+if test "${with_trilinos_libs+set}" = set; then :
   withval=$with_trilinos_libs;
                 if test "x$withval" = "xno" ; then
-          { $as_echo "$as_me:$LINENO: result: explicitly disabled" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: explicitly disabled" >&5
 $as_echo "explicitly disabled" >&6; }
           USE_CONTRIB_TRILINOS=no
         else
 	  USE_CONTRIB_TRILINOS=yes
           DEAL_II_TRILINOS_LIBDIR="$withval"
-	  { $as_echo "$as_me:$LINENO: result: $DEAL_II_TRILINOS_LIBDIR" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_TRILINOS_LIBDIR" >&5
 $as_echo "$DEAL_II_TRILINOS_LIBDIR" >&6; }
 
                     if test ! -d $DEAL_II_TRILINOS_LIBDIR ; then
-            { { $as_echo "$as_me:$LINENO: error: Path to Trilinos libraries with --with-trilinos-libs does not point to a valid directory" >&5
-$as_echo "$as_me: error: Path to Trilinos libraries with --with-trilinos-libs does not point to a valid directory" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "Path to Trilinos libraries with --with-trilinos-libs does not point to a valid directory" "$LINENO" 5
 	  fi
         fi
 
@@ -14011,22 +10469,20 @@ else
                 if test "x$TRILINOS_LIBDIR" != "x" ; then
   	  USE_CONTRIB_TRILINOS=yes
 	  DEAL_II_TRILINOS_LIBDIR="$TRILINOS_LIBDIR"
-	  { $as_echo "$as_me:$LINENO: result: $DEAL_II_TRILINOS_LIBDIR" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_TRILINOS_LIBDIR" >&5
 $as_echo "$DEAL_II_TRILINOS_LIBDIR" >&6; }
 
                     if test ! -d $DEAL_II_TRILINOS_LIBDIR ; then
-            { { $as_echo "$as_me:$LINENO: error: The path to Trilinos specified in the TRILINOS_LIBDIR environment variable does not point to a complete Trilinos installation" >&5
-$as_echo "$as_me: error: The path to Trilinos specified in the TRILINOS_LIBDIR environment variable does not point to a complete Trilinos installation" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "The path to Trilinos specified in the TRILINOS_LIBDIR environment variable does not point to a complete Trilinos installation" "$LINENO" 5
 	  fi
         else
           	  	            if test "x${USE_CONTRIB_TRILINOS}" != "xyes" ; then
 	    USE_CONTRIB_TRILINOS=no
             DEAL_II_TRILINOS_LIBDIR=""
-            { $as_echo "$as_me:$LINENO: result: not found" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
 $as_echo "not found" >&6; }
           else
-            { $as_echo "$as_me:$LINENO: result: not explicitly specified" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: not explicitly specified" >&5
 $as_echo "not explicitly specified" >&6; }
           fi
         fi
@@ -14036,15 +10492,13 @@ fi
 
     if test "$USE_CONTRIB_TRILINOS" = "yes" ; then
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_TRILINOS 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_TRILINOS 1" >>confdefs.h
 
 
                         DEAL_II_DEFINE_DEAL_II_USE_TRILINOS=DEAL_II_USE_TRILINOS
 
 
-  { $as_echo "$as_me:$LINENO: checking for Trilinos version" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Trilinos version" >&5
 $as_echo_n "checking for Trilinos version... " >&6; }
   DEAL_II_TRILINOS_VERSION_MAJOR=`cat $DEAL_II_TRILINOS_DIR/include/Trilinos_version.h \
                                | grep "#define TRILINOS_MAJOR_VERSION" \
@@ -14057,25 +10511,25 @@ $as_echo_n "checking for Trilinos version... " >&6; }
                                | grep "#define TRILINOS_MAJOR_MINOR_VERSION" \
                                | perl -pi -e 's/.*VERSION\s+\d?\d\d\d(\d\d)/\1/g;' \
 			       | perl -pi -e 's/0(\d)/\1/g;'`
-  { $as_echo "$as_me:$LINENO: result: $DEAL_II_TRILINOS_VERSION_MAJOR.$DEAL_II_TRILINOS_VERSION_MINOR.$DEAL_II_TRILINOS_VERSION_SUBMINOR" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_TRILINOS_VERSION_MAJOR.$DEAL_II_TRILINOS_VERSION_MINOR.$DEAL_II_TRILINOS_VERSION_SUBMINOR" >&5
 $as_echo "$DEAL_II_TRILINOS_VERSION_MAJOR.$DEAL_II_TRILINOS_VERSION_MINOR.$DEAL_II_TRILINOS_VERSION_SUBMINOR" >&6; }
 
 
 
 
 
-      { $as_echo "$as_me:$LINENO: checking Epetra_config.h presence" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking Epetra_config.h presence" >&5
 $as_echo_n "checking Epetra_config.h presence... " >&6; }
   if test -f $DEAL_II_TRILINOS_INCDIR/Epetra_config.h ; then
-    { $as_echo "$as_me:$LINENO: result: yes" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
   else
-    { $as_echo "$as_me:$LINENO: result: no" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
     exit 1;
   fi
 
-  { $as_echo "$as_me:$LINENO: checking for consistency of Trilinos and deal.II MPI settings" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for consistency of Trilinos and deal.II MPI settings" >&5
 $as_echo_n "checking for consistency of Trilinos and deal.II MPI settings... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -14095,11 +10549,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
   echo "#undef PACKAGE_VERSION" >> confdefs.h
 
   if test "x$DEAL_II_USE_MPI" = "xyes" ; then
-                    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+                    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 	#include <Epetra_config.h>
@@ -14116,47 +10566,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-        { { $as_echo "$as_me:$LINENO: error: Trilinos was not built for MPI, but deal.II is!" >&5
-$as_echo "$as_me: error: Trilinos was not built for MPI, but deal.II is!" >&2;}
-   { (exit 1); exit 1; }; }
+        as_fn_error "Trilinos was not built for MPI, but deal.II is!" "$LINENO" 5
         exit 1;
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   else
-            cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
         #include <Epetra_config.h>
@@ -14173,40 +10596,17 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-	{ { $as_echo "$as_me:$LINENO: error: Trilinos was built for MPI, but deal.II is not!" >&5
-$as_echo "$as_me: error: Trilinos was built for MPI, but deal.II is not!" >&2;}
-   { (exit 1); exit 1; }; }
+	as_fn_error "Trilinos was built for MPI, but deal.II is not!" "$LINENO" 5
 	exit 1;
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   fi
 
@@ -14215,45 +10615,39 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
 
-  { $as_echo "$as_me:$LINENO: checking whether Trilinos uses shared libraries" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Trilinos uses shared libraries" >&5
 $as_echo_n "checking whether Trilinos uses shared libraries... " >&6; }
   if test -f $DEAL_II_TRILINOS_LIBDIR/libepetra${shared_lib_suffix} ; then
-    { $as_echo "$as_me:$LINENO: result: yes" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
     DEAL_II_TRILINOS_SHARED=yes
   else
-    { $as_echo "$as_me:$LINENO: result: no" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
   fi
 
-  { $as_echo "$as_me:$LINENO: checking whether Trilinos uses static libraries" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Trilinos uses static libraries" >&5
 $as_echo_n "checking whether Trilinos uses static libraries... " >&6; }
   if test -f $DEAL_II_TRILINOS_LIBDIR/libepetra${static_lib_suffix} ; then
-    { $as_echo "$as_me:$LINENO: result: yes" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
     DEAL_II_TRILINOS_STATIC=yes
   else
-    { $as_echo "$as_me:$LINENO: result: no" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
   fi
 
     if test "x${DEAL_II_TRILINOS_SHARED}${DEAL_II_TRILINOS_STATIC}" = "x" ; then
-    { { $as_echo "$as_me:$LINENO: error: Unable to determine whether Trilinos uses shared or static libraries." >&5
-$as_echo "$as_me: error: Unable to determine whether Trilinos uses shared or static libraries." >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "Unable to determine whether Trilinos uses shared or static libraries." "$LINENO" 5
   fi
 
 
       if test "x$enableshared" = "xyes" -a "x$DEAL_II_TRILINOS_SHARED" != "xyes" ; then
-    { { $as_echo "$as_me:$LINENO: error: When building deal.II with shared libraries, Trilinos also needs to be built with shared libraries" >&5
-$as_echo "$as_me: error: When building deal.II with shared libraries, Trilinos also needs to be built with shared libraries" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "When building deal.II with shared libraries, Trilinos also needs to be built with shared libraries" "$LINENO" 5
   fi
 
   if test "x$enableshared" = "xno" -a "x$DEAL_II_TRILINOS_STATIC" != "xyes" ; then
-    { { $as_echo "$as_me:$LINENO: error: When building deal.II with shared libraries, Trilinos also needs to be built with shared libraries" >&5
-$as_echo "$as_me: error: When building deal.II with shared libraries, Trilinos also needs to be built with shared libraries" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "When building deal.II with shared libraries, Trilinos also needs to be built with shared libraries" "$LINENO" 5
   fi
 
       if test "x$enableshared" = "xyes" ; then
@@ -14266,14 +10660,10 @@ $as_echo "$as_me: error: When building deal.II with shared libraries, Trilinos a
 
   OLD_CXXFLAGS="$CXXFLAGS"
 
-  { $as_echo "$as_me:$LINENO: checking whether we can use -Wno-unused to suppress Trilinos warnings" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we can use -Wno-unused to suppress Trilinos warnings" >&5
 $as_echo_n "checking whether we can use -Wno-unused to suppress Trilinos warnings... " >&6; }
   CXXFLAGS=-Wno-unused
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -14284,49 +10674,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
       CXXFLAGSG="$CXXFLAGSG -Wno-unused"
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking whether we can use -Wno-overloaded-virtual to suppress Trilinos warnings" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we can use -Wno-overloaded-virtual to suppress Trilinos warnings" >&5
 $as_echo_n "checking whether we can use -Wno-overloaded-virtual to suppress Trilinos warnings... " >&6; }
   CXXFLAGS=-Wno-overloaded-virtual
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -14337,49 +10702,24 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
       CXXFLAGSG="$CXXFLAGSG -Wno-overloaded-virtual"
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking whether we can use -Wno-extra to suppress Trilinos warnings" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we can use -Wno-extra to suppress Trilinos warnings" >&5
 $as_echo_n "checking whether we can use -Wno-extra to suppress Trilinos warnings... " >&6; }
   CXXFLAGS=-Wno-extra
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -14390,39 +10730,18 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
       CXXFLAGSG="$CXXFLAGSG -Wno-extra"
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-      { $as_echo "$as_me:$LINENO: result: no" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
   CXXFLAGS="${OLD_CXXFLAGS}"
@@ -14439,25 +10758,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   echo "#undef HAVE_INTTYPES_H" >> confdefs.h
   echo "#endif" >> confdefs.h
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-for ac_header in Amesos.h \
+  for ac_header in Amesos.h \
                     Epetra_CrsGraph.h \
                     Epetra_CrsMatrix.h \
                     Epetra_Import.h \
@@ -14476,156 +10777,18 @@ for ac_header in Amesos.h \
                     Teuchos_RCP.hpp \
                     Teuchos_RefCountPtr.hpp
 
-do
-as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  { $as_echo "$as_me:$LINENO: checking for $ac_header" >&5
-$as_echo_n "checking for $ac_header... " >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-fi
-ac_res=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking $ac_header usability" >&5
-$as_echo_n "checking $ac_header usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking $ac_header presence" >&5
-$as_echo_n "checking $ac_header presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <$ac_header>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## -------------------------------- ##
-## Report this to dealii@dealii.org ##
-## -------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for $ac_header" >&5
-$as_echo_n "checking for $ac_header... " >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  eval "$as_ac_Header=\$ac_header_preproc"
-fi
-ac_res=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-
-fi
-as_val=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_cxx_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+eval as_val=\$$as_ac_Header
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
 
 else
 
-                     { { $as_echo "$as_me:$LINENO: error: The Trilinos installation is missing one or more header files necessary for the deal.II Trilinos interfaces. Please re-install Trilinos with the missing Trilinos sub-packages enabled." >&5
-$as_echo "$as_me: error: The Trilinos installation is missing one or more header files necessary for the deal.II Trilinos interfaces. Please re-install Trilinos with the missing Trilinos sub-packages enabled." >&2;}
-   { (exit 1); exit 1; }; }
+                     as_fn_error "The Trilinos installation is missing one or more header files necessary for the deal.II Trilinos interfaces. Please re-install Trilinos with the missing Trilinos sub-packages enabled." "$LINENO" 5
 
 fi
 
@@ -14663,46 +10826,42 @@ done
 
 
 
-  { $as_echo "$as_me:$LINENO: checking for ARPACK library directory" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ARPACK library directory" >&5
 $as_echo_n "checking for ARPACK library directory... " >&6; }
 
 # Check whether --with-arpack was given.
-if test "${with_arpack+set}" = set; then
+if test "${with_arpack+set}" = set; then :
   withval=$with_arpack;      if test "x$withval" = "xno" ; then
-       { $as_echo "$as_me:$LINENO: result: explicitly disabled" >&5
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: explicitly disabled" >&5
 $as_echo "explicitly disabled" >&6; }
        USE_CONTRIB_ARPACK=no
      else
        DEAL_II_ARPACK_DIR="$withval"
-       { $as_echo "$as_me:$LINENO: result: $DEAL_II_ARPACK_DIR" >&5
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_ARPACK_DIR" >&5
 $as_echo "$DEAL_II_ARPACK_DIR" >&6; }
               if test ! -d $DEAL_II_ARPACK_DIR \
           ; then
-         { { $as_echo "$as_me:$LINENO: error: Path to ARPACK specified with --with-arpack does not point to a complete ARPACK installation" >&5
-$as_echo "$as_me: error: Path to ARPACK specified with --with-arpack does not point to a complete ARPACK installation" >&2;}
-   { (exit 1); exit 1; }; }
+         as_fn_error "Path to ARPACK specified with --with-arpack does not point to a complete ARPACK installation" "$LINENO" 5
        fi
 
-                            { $as_echo "$as_me:$LINENO: checking for ARPACK library architecture" >&5
+                            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ARPACK library architecture" >&5
 $as_echo_n "checking for ARPACK library architecture... " >&6; }
        ARPACK_ARCH=`cat $DEAL_II_ARPACK_DIR/ARmake.inc \
                  | grep "PLAT = " \
                  | perl -pi -e 's/.*PLAT =\s+//g;'`
        DEAL_II_ARPACK_ARCH="$ARPACK_ARCH"
-       { $as_echo "$as_me:$LINENO: result: $DEAL_II_ARPACK_ARCH" >&5
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_ARPACK_ARCH" >&5
 $as_echo "$DEAL_II_ARPACK_ARCH" >&6; }
 
        USE_CONTRIB_ARPACK=yes
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_ARPACK 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_ARPACK 1" >>confdefs.h
 
      fi
 
 else
        USE_CONTRIB_ARPACK=no
-     { $as_echo "$as_me:$LINENO: result: no" >&5
+     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
@@ -14713,33 +10872,31 @@ fi
 
 
 
-  { $as_echo "$as_me:$LINENO: checking for MUMPS library directory" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for MUMPS library directory" >&5
 $as_echo_n "checking for MUMPS library directory... " >&6; }
 
 # Check whether --with-mumps was given.
-if test "${with_mumps+set}" = set; then
+if test "${with_mumps+set}" = set; then :
   withval=$with_mumps;      if test "x$withval" = "xno" ; then
-       { $as_echo "$as_me:$LINENO: result: explicitly disabled" >&5
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: explicitly disabled" >&5
 $as_echo "explicitly disabled" >&6; }
        USE_CONTRIB_MUMPS=no
      else
        USE_CONTRIB_MUMPS=yes
        DEAL_II_MUMPS_DIR="$withval"
-       { $as_echo "$as_me:$LINENO: result: $DEAL_II_MUMPS_DIR" >&5
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_MUMPS_DIR" >&5
 $as_echo "$DEAL_II_MUMPS_DIR" >&6; }
               if test ! -d $DEAL_II_MUMPS_DIR         \
             -o ! -d $DEAL_II_MUMPS_DIR/include \
             -o ! -d $DEAL_II_MUMPS_DIR/lib     \
           ; then
-         { { $as_echo "$as_me:$LINENO: error: Path to MUMPS specified with --with-mumps does not point to a complete MUMPS installation" >&5
-$as_echo "$as_me: error: Path to MUMPS specified with --with-mumps does not point to a complete MUMPS installation" >&2;}
-   { (exit 1); exit 1; }; }
+         as_fn_error "Path to MUMPS specified with --with-mumps does not point to a complete MUMPS installation" "$LINENO" 5
        fi
      fi
 
 else
        USE_CONTRIB_MUMPS=no
-     { $as_echo "$as_me:$LINENO: result: no" >&5
+     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
@@ -14747,52 +10904,44 @@ fi
 
         if test "$USE_CONTRIB_MUMPS" = "yes" ; then
 
-            { $as_echo "$as_me:$LINENO: checking for SCALAPACK library directory" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SCALAPACK library directory" >&5
 $as_echo_n "checking for SCALAPACK library directory... " >&6; }
 
 # Check whether --with-scalapack was given.
-if test "${with_scalapack+set}" = set; then
+if test "${with_scalapack+set}" = set; then :
   withval=$with_scalapack;        DEAL_II_SCALAPACK_DIR="$withval"
-       { $as_echo "$as_me:$LINENO: result: $DEAL_II_SCALAPACK_DIR" >&5
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_SCALAPACK_DIR" >&5
 $as_echo "$DEAL_II_SCALAPACK_DIR" >&6; }
               if test ! -d $DEAL_II_SCALAPCK_DIR ; then
-         { { $as_echo "$as_me:$LINENO: error: The path to SCALAPACK specified with --with-scalapack does t point to a complete SCALAPACK installation" >&5
-$as_echo "$as_me: error: The path to SCALAPACK specified with --with-scalapack does t point to a complete SCALAPACK installation" >&2;}
-   { (exit 1); exit 1; }; }
+         as_fn_error "The path to SCALAPACK specified with --with-scalapack does t point to a complete SCALAPACK installation" "$LINENO" 5
        fi
 
 else
-         { { $as_echo "$as_me:$LINENO: error: If MUMPS is used, the path to SCALAPACK must be specified with --with-scalapack" >&5
-$as_echo "$as_me: error: If MUMPS is used, the path to SCALAPACK must be specified with --with-scalapack" >&2;}
-   { (exit 1); exit 1; }; }
+         as_fn_error "If MUMPS is used, the path to SCALAPACK must be specified with --with-scalapack" "$LINENO" 5
 
 fi
 
 
-            { $as_echo "$as_me:$LINENO: checking for BLACS library directory" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for BLACS library directory" >&5
 $as_echo_n "checking for BLACS library directory... " >&6; }
 
 # Check whether --with-blacs was given.
-if test "${with_blacs+set}" = set; then
+if test "${with_blacs+set}" = set; then :
   withval=$with_blacs;        DEAL_II_BLACS_DIR="$withval"
-       { $as_echo "$as_me:$LINENO: result: $DEAL_II_BLACS_DIR" >&5
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_BLACS_DIR" >&5
 $as_echo "$DEAL_II_BLACS_DIR" >&6; }
               if test ! -d $DEAL_II_BLACS_DIR     \
             -o ! -d $DEAL_II_BLACS_DIR/LIB ; then
-       { { $as_echo "$as_me:$LINENO: error: The path to BLACS specified with --with-blacs does not point to a complete BLACS installation" >&5
-$as_echo "$as_me: error: The path to BLACS specified with --with-blacs does not point to a complete BLACS installation" >&2;}
-   { (exit 1); exit 1; }; }
+       as_fn_error "The path to BLACS specified with --with-blacs does not point to a complete BLACS installation" "$LINENO" 5
        fi
 
 else
-         { { $as_echo "$as_me:$LINENO: error: If MUMPS is used, the path to BLACS must be specified with --with-blacs" >&5
-$as_echo "$as_me: error: If MUMPS is used, the path to BLACS must be specified with --with-blacs" >&2;}
-   { (exit 1); exit 1; }; }
+         as_fn_error "If MUMPS is used, the path to BLACS must be specified with --with-blacs" "$LINENO" 5
 
 fi
 
 
-                    { $as_echo "$as_me:$LINENO: checking for BLACS library architecture" >&5
+                    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for BLACS library architecture" >&5
 $as_echo_n "checking for BLACS library architecture... " >&6; }
     BLACS_COMM=`cat $DEAL_II_BLACS_DIR/Bmake.inc \
               | grep "COMMLIB = " \
@@ -14804,16 +10953,14 @@ $as_echo_n "checking for BLACS library architecture... " >&6; }
               | grep "BLACSDBGLVL = " \
               | perl -pi -e 's/.*DBGLVL =\s+//g;'`
         DEAL_II_BLACS_ARCH="$BLACS_COMM-$BLACS_PLAT-$BLACS_DEBUG"
-    { $as_echo "$as_me:$LINENO: result: $DEAL_II_BLACS_ARCH" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_BLACS_ARCH" >&5
 $as_echo "$DEAL_II_BLACS_ARCH" >&6; }
 
   fi
 
     if test "$USE_CONTRIB_MUMPS" = "yes" ; then
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_MUMPS 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_MUMPS 1" >>confdefs.h
 
         DEAL_II_DEFINE_DEAL_II_USE_MUMPS=DEAL_II_USE_MUMPS
         if test "x$with_mumps" = "x" ; then
@@ -14827,12 +10974,12 @@ _ACEOF
 
 
 
-  { $as_echo "$as_me:$LINENO: checking whether p4est will be used" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether p4est will be used" >&5
 $as_echo_n "checking whether p4est will be used... " >&6; }
 
 
 # Check whether --with-p4est was given.
-if test "${with_p4est+set}" = set; then
+if test "${with_p4est+set}" = set; then :
   withval=$with_p4est; use_p4est=$withval
 else
   use_p4est=no
@@ -14840,28 +10987,21 @@ fi
 
 
   if test "x$use_p4est" != "xno" ; then
-    { $as_echo "$as_me:$LINENO: result: yes" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
     if test ! -d "${use_p4est}/DEBUG" -o ! -d "${use_p4est}/FAST" ; then
     echo "${use_p4est}/DEBUG"
-      { { $as_echo "$as_me:$LINENO: error: p4est directories $use_p4est/DEBUG or $use_p4est/FAST not found" >&5
-$as_echo "$as_me: error: p4est directories $use_p4est/DEBUG or $use_p4est/FAST not found" >&2;}
-   { (exit 1); exit 1; }; }
+      as_fn_error "p4est directories $use_p4est/DEBUG or $use_p4est/FAST not found" "$LINENO" 5
     fi
 
             if test "x$enableshared" != "xyes" ; then
-      { { $as_echo "$as_me:$LINENO: error: When using p4est with shared libraries, you need to build
-		    deal.II with shared libraries as well." >&5
-$as_echo "$as_me: error: When using p4est with shared libraries, you need to build
-		    deal.II with shared libraries as well." >&2;}
-   { (exit 1); exit 1; }; }
+      as_fn_error "When using p4est with shared libraries, you need to build
+		    deal.II with shared libraries as well." "$LINENO" 5
     fi
 
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_P4EST 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_P4EST 1" >>confdefs.h
 
     USE_CONTRIB_P4EST=yes
     export USE_CONTRIB_P4EST
@@ -14872,7 +11012,7 @@ _ACEOF
     CXXFLAGSG="$CXXFLAGSG -I$use_p4est/DEBUG/include"
     CXXFLAGSO="$CXXFLAGSO -I$use_p4est/FAST/include"
   else
-    { $as_echo "$as_me:$LINENO: result: no" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
   fi
 
@@ -14935,24 +11075,20 @@ fi
 
 
 # Check whether --with-blas was given.
-if test "${with_blas+set}" = set; then
+if test "${with_blas+set}" = set; then :
   withval=$with_blas;
   if test "x$withval" != "xno" ; then
     if test "x$withval" != "xyes" ; then
       blas="$withval"
       as_ac_Lib=`$as_echo "ac_cv_lib_$blas''_daxpy_" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for daxpy_ in -l$blas" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for daxpy_ in -l$blas" >&5
 $as_echo_n "checking for daxpy_ in -l$blas... " >&6; }
-if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-l$blas $F77LIBS $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -14970,55 +11106,26 @@ return daxpy_ ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   eval "$as_ac_Lib=yes"
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_Lib=no"
+  eval "$as_ac_Lib=no"
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-ac_res=`eval 'as_val=${'$as_ac_Lib'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_Lib
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_Lib'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_Lib
+   if test "x$as_val" = x""yes; then :
 
 
   LIBS="-l$blas $LIBS"
 
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIBBLAS 1
-_ACEOF
+$as_echo "#define HAVE_LIBBLAS 1" >>confdefs.h
 
 
 fi
@@ -15032,16 +11139,12 @@ fi
         if (echo $target | grep apple-darwin > /dev/null) ; then
     OLD_LDFLAGS="$LDFLAGS"
 
-        { $as_echo "$as_me:$LINENO: checking -framework Accelerate" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking -framework Accelerate" >&5
 $as_echo_n "checking -framework Accelerate... " >&6; }
     LDFLAGS="$OLD_LDFLAGS -framework Accelerate"
-    cat >conftest.$ac_ext <<_ACEOF
-  /* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-extern "C" void daxpy(int,double,double*,int,double*,int);
+  extern "C" void daxpy(int,double,double*,int,double*,int);
 int
 main ()
 {
@@ -15051,57 +11154,28 @@ daxpy(0,0.,0,0,0,0);
 }
 
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
 
-                { $as_echo "$as_me:$LINENO: result: yes" >&5
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
                 framework_works=yes
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-                { $as_echo "$as_me:$LINENO: result: no" >&5
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 
         if test "x$framework_works" != "xyes"; then
-      { $as_echo "$as_me:$LINENO: checking -framework vecLib" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking -framework vecLib" >&5
 $as_echo_n "checking -framework vecLib... " >&6; }
       LDFLAGS="$OLD_LDFLAGS -framework vecLib"
-      cat >conftest.$ac_ext <<_ACEOF
-  /* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-extern "C" void daxpy(int,double,double*,int,double*,int);
+  extern "C" void daxpy(int,double,double*,int,double*,int);
 int
 main ()
 {
@@ -15111,45 +11185,20 @@ daxpy(0,0.,0,0,0,0);
 }
 
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
 
-                  { $as_echo "$as_me:$LINENO: result: yes" >&5
+                  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
                   framework_works=yes
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
 
-                  { $as_echo "$as_me:$LINENO: result: no" >&5
+                  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
     fi
 
             if test "x$framework_works" != "xyes"; then
@@ -15160,18 +11209,14 @@ rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
       if test "x$framework_works" != "xyes"; then
         blas="blas";
         as_ac_Lib=`$as_echo "ac_cv_lib_$blas''_daxpy_" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for daxpy_ in -l$blas" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for daxpy_ in -l$blas" >&5
 $as_echo_n "checking for daxpy_ in -l$blas... " >&6; }
-if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-l$blas $F77LIBS $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -15189,55 +11234,26 @@ return daxpy_ ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   eval "$as_ac_Lib=yes"
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_Lib=no"
+  eval "$as_ac_Lib=no"
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-ac_res=`eval 'as_val=${'$as_ac_Lib'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_Lib
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_Lib'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_Lib
+   if test "x$as_val" = x""yes; then :
 
 
   LIBS="-l$blas $LIBS"
 
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIBBLAS 1
-_ACEOF
+$as_echo "#define HAVE_LIBBLAS 1" >>confdefs.h
 
 
 fi
@@ -15255,15 +11271,13 @@ fi
 
 
 
-  { $as_echo "$as_me:$LINENO: checking for HSL subroutines" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for HSL subroutines" >&5
 $as_echo_n "checking for HSL subroutines... " >&6; }
   hsl_subroutines=""
   if test -r contrib/hsl/source/ma27.f ; then
     hsl_subroutines="$hsl_subroutines MA27"
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_HSL_MA27 1
-_ACEOF
+$as_echo "#define HAVE_HSL_MA27 1" >>confdefs.h
 
   fi
 
@@ -15271,14 +11285,12 @@ _ACEOF
       test -r contrib/hsl/source/ma47dep.f) ; then
     hsl_subroutines="$hsl_subroutines MA47"
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_HSL_MA47 1
-_ACEOF
+$as_echo "#define HAVE_HSL_MA47 1" >>confdefs.h
 
   fi
 
   if test "x$hsl_subroutines" != "x" ; then
-    { $as_echo "$as_me:$LINENO: result: $hsl_subroutines" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hsl_subroutines" >&5
 $as_echo "$hsl_subroutines" >&6; }
     USE_CONTRIB_HSL=yes
     HSL_INCLUDE_DIR='-I$D/contrib/hsl/include'
@@ -15286,7 +11298,7 @@ $as_echo "$hsl_subroutines" >&6; }
     NEEDS_F77LIBS="yes"
 
   else
-    { $as_echo "$as_me:$LINENO: result: none found" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none found" >&5
 $as_echo "none found" >&6; }
   fi
 
@@ -15294,7 +11306,7 @@ $as_echo "none found" >&6; }
 
 
 if test "x$NEEDS_F77LIBS" != "x" ; then
-   { $as_echo "$as_me:$LINENO: result: Adding FORTRAN libraries $F77LIBS" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: Adding FORTRAN libraries $F77LIBS" >&5
 $as_echo "Adding FORTRAN libraries $F77LIBS" >&6; }
    LIBS="$LIBS $F77LIBS"
    LDFLAGS="$F77FLAGS $LDFLAGS"
@@ -15307,22 +11319,18 @@ fi
 
 
 # Check whether --with-zlib was given.
-if test "${with_zlib+set}" = set; then
+if test "${with_zlib+set}" = set; then :
   withval=$with_zlib;
     if test "x$withval" != "xyes" ; then
     as_ac_Lib=`$as_echo "ac_cv_lib_$withval''_crc32" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for crc32 in -l$withval" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for crc32 in -l$withval" >&5
 $as_echo_n "checking for crc32 in -l$withval... " >&6; }
-if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-l$withval  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -15340,71 +11348,37 @@ return crc32 ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   eval "$as_ac_Lib=yes"
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_Lib=no"
+  eval "$as_ac_Lib=no"
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-ac_res=`eval 'as_val=${'$as_ac_Lib'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_Lib
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_Lib'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_Lib
+   if test "x$as_val" = x""yes; then :
 
   LIBS="-l$withval $LIBS"
 
-      cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIBZ 1
-_ACEOF
+      $as_echo "#define HAVE_LIBZ 1" >>confdefs.h
 
 
 fi
 
   else
-
-{ $as_echo "$as_me:$LINENO: checking for crc32 in -lz" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for crc32 in -lz" >&5
 $as_echo_n "checking for crc32 in -lz... " >&6; }
-if test "${ac_cv_lib_z_crc32+set}" = set; then
+if test "${ac_cv_lib_z_crc32+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lz  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -15422,43 +11396,18 @@ return crc32 ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_z_crc32=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_z_crc32=no
+  ac_cv_lib_z_crc32=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_z_crc32" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_crc32" >&5
 $as_echo "$ac_cv_lib_z_crc32" >&6; }
-if test "x$ac_cv_lib_z_crc32" = x""yes; then
+if test "x$ac_cv_lib_z_crc32" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBZ 1
 _ACEOF
@@ -15476,54 +11425,46 @@ fi
 
   for i  in $TECHOME $TEC100HOME $TEC90HOME $TEC80HOME  ; do
     as_ac_File=`$as_echo "ac_cv_file_$i/lib/tecio.a" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $i/lib/tecio.a" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $i/lib/tecio.a" >&5
 $as_echo_n "checking for $i/lib/tecio.a... " >&6; }
-if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   test "$cross_compiling" = yes &&
-  { { $as_echo "$as_me:$LINENO: error: cannot check for file existence when cross compiling" >&5
-$as_echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot check for file existence when cross compiling" "$LINENO" 5
 if test -r "$i/lib/tecio.a"; then
   eval "$as_ac_File=yes"
 else
   eval "$as_ac_File=no"
 fi
 fi
-ac_res=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_File
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_File
+   if test "x$as_val" = x""yes; then :
   TECPLOT_LIB="$i/lib/tecio.a"
 fi
 
     as_ac_File=`$as_echo "ac_cv_file_$i/include/TECIO.h" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $i/include/TECIO.h" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $i/include/TECIO.h" >&5
 $as_echo_n "checking for $i/include/TECIO.h... " >&6; }
-if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   test "$cross_compiling" = yes &&
-  { { $as_echo "$as_me:$LINENO: error: cannot check for file existence when cross compiling" >&5
-$as_echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot check for file existence when cross compiling" "$LINENO" 5
 if test -r "$i/include/TECIO.h"; then
   eval "$as_ac_File=yes"
 else
   eval "$as_ac_File=no"
 fi
 fi
-ac_res=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_File
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_File
+   if test "x$as_val" = x""yes; then :
   TECPLOT_INCLUDE_DIR=-I$i/include
 else
   TECPLOT_LIB=""
@@ -15536,9 +11477,7 @@ fi
 
   if (test -r "$TECPLOT_LIB") ; then
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_HAVE_TECPLOT 1
-_ACEOF
+$as_echo "#define DEAL_II_HAVE_TECPLOT 1" >>confdefs.h
 
 
   LIBS="$TECPLOT_LIB $LIBS"
@@ -15550,7 +11489,7 @@ _ACEOF
 
 
 # Check whether --with-netcdf was given.
-if test "${with_netcdf+set}" = set; then
+if test "${with_netcdf+set}" = set; then :
   withval=$with_netcdf;
         DEAL_II_NETCDF_DIR="$withval"
 
@@ -15567,7 +11506,7 @@ fi
 
 
 # Check whether --with-netcdf-include was given.
-if test "${with_netcdf_include+set}" = set; then
+if test "${with_netcdf_include+set}" = set; then :
   withval=$with_netcdf_include;
 	 NETCDF_INCLUDE_DIR="$withval"
 
@@ -15576,7 +11515,7 @@ fi
 
 
 # Check whether --with-netcdf-libs was given.
-if test "${with_netcdf_libs+set}" = set; then
+if test "${with_netcdf_libs+set}" = set; then :
   withval=$with_netcdf_libs;
 	 NETCDF_LIBDIR="$withval"
 
@@ -15610,153 +11549,21 @@ fi
     fi
   fi
 
-        if test "${ac_cv_header_netcdfcpp_h+set}" = set; then
-  { $as_echo "$as_me:$LINENO: checking for netcdfcpp.h" >&5
-$as_echo_n "checking for netcdfcpp.h... " >&6; }
-if test "${ac_cv_header_netcdfcpp_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_netcdfcpp_h" >&5
-$as_echo "$ac_cv_header_netcdfcpp_h" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking netcdfcpp.h usability" >&5
-$as_echo_n "checking netcdfcpp.h usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <netcdfcpp.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+        ac_fn_cxx_check_header_mongrel "$LINENO" "netcdfcpp.h" "ac_cv_header_netcdfcpp_h" "$ac_includes_default"
+if test "x$ac_cv_header_netcdfcpp_h" = x""yes; then :
 
-	ac_header_compiler=no
 fi
 
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
 
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking netcdfcpp.h presence" >&5
-$as_echo_n "checking netcdfcpp.h presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <netcdfcpp.h>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: netcdfcpp.h: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: netcdfcpp.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: netcdfcpp.h: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: netcdfcpp.h: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: netcdfcpp.h: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: netcdfcpp.h: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: netcdfcpp.h:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: netcdfcpp.h:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: netcdfcpp.h: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: netcdfcpp.h: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: netcdfcpp.h:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: netcdfcpp.h:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: netcdfcpp.h: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: netcdfcpp.h: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: netcdfcpp.h: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: netcdfcpp.h: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## -------------------------------- ##
-## Report this to dealii@dealii.org ##
-## -------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for netcdfcpp.h" >&5
-$as_echo_n "checking for netcdfcpp.h... " >&6; }
-if test "${ac_cv_header_netcdfcpp_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_header_netcdfcpp_h=$ac_header_preproc
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_netcdfcpp_h" >&5
-$as_echo "$ac_cv_header_netcdfcpp_h" >&6; }
-
-fi
-
-
-
-  { $as_echo "$as_me:$LINENO: checking for nc_open in -lnetcdf" >&5
-$as_echo_n "checking for nc_open in -lnetcdf... " >&6; }
-if test "${ac_cv_lib_netcdf_nc_open+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lnetcdf  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nc_open in -lnetcdf" >&5
+$as_echo_n "checking for nc_open in -lnetcdf... " >&6; }
+if test "${ac_cv_lib_netcdf_nc_open+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lnetcdf  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -15774,58 +11581,29 @@ return nc_open ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_netcdf_nc_open=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_netcdf_nc_open=no
+  ac_cv_lib_netcdf_nc_open=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_netcdf_nc_open" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_netcdf_nc_open" >&5
 $as_echo "$ac_cv_lib_netcdf_nc_open" >&6; }
-if test "x$ac_cv_lib_netcdf_nc_open" = x""yes; then
+if test "x$ac_cv_lib_netcdf_nc_open" = x""yes; then :
 
   OLD_LIBS="$LIBS"
 
 
   LIBS="-lnetcdf_c++ -lnetcdf $LIBS"
 
-    { $as_echo "$as_me:$LINENO: checking for NcFile::NcFile in -lnetcdf_c++" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for NcFile::NcFile in -lnetcdf_c++" >&5
 $as_echo_n "checking for NcFile::NcFile in -lnetcdf_c++... " >&6; }
-    cat >conftest.$ac_ext <<_ACEOF
-  /* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <netcdfcpp.h>
+  #include <netcdfcpp.h>
 
 int
 main ()
@@ -15836,220 +11614,49 @@ NcFile test("test")
 }
 
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-   { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_cxx_try_link "$LINENO"; then :
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIBNETCDF 1
-_ACEOF
+$as_echo "#define HAVE_LIBNETCDF 1" >>confdefs.h
 
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	 { $as_echo "$as_me:$LINENO: result: no" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
   LIBS="$OLD_LIBS"
 
 
 fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-
-fi
-
-
-
-
-
-for ac_header in gsl_sf.h
-do
-as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  { $as_echo "$as_me:$LINENO: checking for $ac_header" >&5
-$as_echo_n "checking for $ac_header... " >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-fi
-ac_res=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking $ac_header usability" >&5
-$as_echo_n "checking $ac_header usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
 fi
 
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking $ac_header presence" >&5
-$as_echo_n "checking $ac_header presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <$ac_header>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
 
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
 
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## -------------------------------- ##
-## Report this to dealii@dealii.org ##
-## -------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for $ac_header" >&5
-$as_echo_n "checking for $ac_header... " >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  eval "$as_ac_Header=\$ac_header_preproc"
-fi
-ac_res=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
 
-fi
-as_val=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+   for ac_header in gsl_sf.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "gsl_sf.h" "ac_cv_header_gsl_sf_h" "$ac_includes_default"
+if test "x$ac_cv_header_gsl_sf_h" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+#define HAVE_GSL_SF_H 1
 _ACEOF
 
 fi
 
 done
 
-
-{ $as_echo "$as_me:$LINENO: checking for gsl_bessel_J0 in -lgsl" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gsl_bessel_J0 in -lgsl" >&5
 $as_echo_n "checking for gsl_bessel_J0 in -lgsl... " >&6; }
-if test "${ac_cv_lib_gsl_gsl_bessel_J0+set}" = set; then
+if test "${ac_cv_lib_gsl_gsl_bessel_J0+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgsl  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -16067,43 +11674,18 @@ return gsl_bessel_J0 ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_gsl_gsl_bessel_J0=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_gsl_gsl_bessel_J0=no
+  ac_cv_lib_gsl_gsl_bessel_J0=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_gsl_gsl_bessel_J0" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gsl_gsl_bessel_J0" >&5
 $as_echo "$ac_cv_lib_gsl_gsl_bessel_J0" >&6; }
-if test "x$ac_cv_lib_gsl_gsl_bessel_J0" = x""yes; then
+if test "x$ac_cv_lib_gsl_gsl_bessel_J0" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBGSL 1
 _ACEOF
@@ -16118,17 +11700,15 @@ fi
 
 
 # Check whether --with-metis was given.
-if test "${with_metis+set}" = set; then
+if test "${with_metis+set}" = set; then :
   withval=$with_metis;
 	USE_CONTRIB_METIS=yes
         DEAL_II_METIS_DIR="$withval"
-	{ $as_echo "$as_me:$LINENO: result: $DEAL_II_METIS_DIR" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_METIS_DIR" >&5
 $as_echo "$DEAL_II_METIS_DIR" >&6; }
 
                 if test ! -d $DEAL_II_METIS_DIR/Lib ; then
-          { { $as_echo "$as_me:$LINENO: error: Path to Metis specified with --with-metis does not point to a complete Metis installation" >&5
-$as_echo "$as_me: error: Path to Metis specified with --with-metis does not point to a complete Metis installation" >&2;}
-   { (exit 1); exit 1; }; }
+          as_fn_error "Path to Metis specified with --with-metis does not point to a complete Metis installation" "$LINENO" 5
 	fi
 
 	DEAL_II_METIS_LIBDIR="$DEAL_II_METIS_DIR"
@@ -16138,13 +11718,11 @@ else
                 if test "x$METIS_DIR" != "x" ; then
   	  USE_CONTRIB_METIS=yes
           DEAL_II_METIS_DIR="$METIS_DIR"
-	  { $as_echo "$as_me:$LINENO: result: $DEAL_II_METIS_DIR" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_METIS_DIR" >&5
 $as_echo "$DEAL_II_METIS_DIR" >&6; }
 
                     if test ! -d $DEAL_II_METIS_DIR/Lib ; then
-            { { $as_echo "$as_me:$LINENO: error: The path to Metis specified in the METIS_DIR environment variable does not point to a complete Metis installation" >&5
-$as_echo "$as_me: error: The path to Metis specified in the METIS_DIR environment variable does not point to a complete Metis installation" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "The path to Metis specified in the METIS_DIR environment variable does not point to a complete Metis installation" "$LINENO" 5
 	  fi
 	  DEAL_II_METIS_LIBDIR="$DEAL_II_METIS_DIR"
         else
@@ -16157,17 +11735,15 @@ fi
 
 
 # Check whether --with-metis-libs was given.
-if test "${with_metis_libs+set}" = set; then
+if test "${with_metis_libs+set}" = set; then :
   withval=$with_metis_libs;
 	USE_CONTRIB_METIS=yes
         DEAL_II_METIS_LIBDIR="$withval"
-	{ $as_echo "$as_me:$LINENO: result: $DEAL_II_METIS_LIBDIR" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_METIS_LIBDIR" >&5
 $as_echo "$DEAL_II_METIS_LIBDIR" >&6; }
 
                 if test ! -d $DEAL_II_METIS_LIBDIR ; then
-          { { $as_echo "$as_me:$LINENO: error: Path to Metis specified with --with-metis does not point to a complete Metis installation" >&5
-$as_echo "$as_me: error: Path to Metis specified with --with-metis does not point to a complete Metis installation" >&2;}
-   { (exit 1); exit 1; }; }
+          as_fn_error "Path to Metis specified with --with-metis does not point to a complete Metis installation" "$LINENO" 5
 	fi
 
 else
@@ -16175,13 +11751,11 @@ else
                 if test "x$METIS_LIBDIR" != "x" ; then
   	  USE_CONTRIB_METIS=yes
           DEAL_II_METIS_LIBDIR="$METIS_LIBDIR"
-	  { $as_echo "$as_me:$LINENO: result: $DEAL_II_METIS_LIBDIR" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEAL_II_METIS_LIBDIR" >&5
 $as_echo "$DEAL_II_METIS_LIBDIR" >&6; }
 
                     if test ! -d $DEAL_II_METIS_LIBDIR ; then
-            { { $as_echo "$as_me:$LINENO: error: The path to Metis specified in the METIS_DIR environment variable does not point to a complete Metis installation" >&5
-$as_echo "$as_me: error: The path to Metis specified in the METIS_DIR environment variable does not point to a complete Metis installation" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "The path to Metis specified in the METIS_DIR environment variable does not point to a complete Metis installation" "$LINENO" 5
 	  fi
         else
           	            if test "x$USE_CONTRIB_METIS" != "xyes" ; then
@@ -16195,9 +11769,7 @@ fi
 
   if test "x$USE_CONTRIB_METIS" = "xyes" ; then
 
-cat >>confdefs.h <<\_ACEOF
-#define DEAL_II_USE_METIS 1
-_ACEOF
+$as_echo "#define DEAL_II_USE_METIS 1" >>confdefs.h
 
     LDFLAGS="$LDFLAGS -L$DEAL_II_METIS_LIBDIR -lmetis"
 
@@ -16209,36 +11781,32 @@ _ACEOF
 
 
 # Check whether --with-umfpack was given.
-if test "${with_umfpack+set}" = set; then
+if test "${with_umfpack+set}" = set; then :
   withval=$with_umfpack;
-        { $as_echo "$as_me:$LINENO: checking UMFPACK library" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking UMFPACK library" >&5
 $as_echo_n "checking UMFPACK library... " >&6; }
         if test "x$withval" = "xyes" ; then
           USE_CONTRIB_UMFPACK='yes'
           UMFPACK_DIR="`pwd`/contrib/umfpack"
           UMFPACK_INCLUDE_DIR="-I`pwd`/contrib/umfpack/UMFPACK/Include"
-          { $as_echo "$as_me:$LINENO: result: using included version" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: using included version" >&5
 $as_echo "using included version" >&6; }
           DEAL_II_USE_INTERNAL_UMFPACK=yes
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIBUMFPACK 1
-_ACEOF
+$as_echo "#define HAVE_LIBUMFPACK 1" >>confdefs.h
 
         else
           if test "x$withval" != "xno" ; then
             USE_CONTRIB_UMFPACK='yes'
             UMFPACK_DIR="$withval"
             UMFPACK_INCLUDE_DIR="-I$withval/Include"
-            { $as_echo "$as_me:$LINENO: result: trying version at $withval" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: trying version at $withval" >&5
 $as_echo "trying version at $withval" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIBUMFPACK 1
-_ACEOF
+$as_echo "#define HAVE_LIBUMFPACK 1" >>confdefs.h
 
 	  else
-	    { $as_echo "$as_me:$LINENO: result: explicitly disabled" >&5
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: explicitly disabled" >&5
 $as_echo "explicitly disabled" >&6; }
           fi
         fi
@@ -16251,7 +11819,7 @@ fi
 
 
 # Check whether --with-umfpack-include was given.
-if test "${with_umfpack_include+set}" = set; then
+if test "${with_umfpack_include+set}" = set; then :
   withval=$with_umfpack_include;
 	UMFPACK_INCDIR="$withval"
         acx_umfpack=yes
@@ -16261,7 +11829,7 @@ fi
 
 
 # Check whether --with-umfpack-libs was given.
-if test "${with_umfpack_libs+set}" = set; then
+if test "${with_umfpack_libs+set}" = set; then :
   withval=$with_umfpack_libs;
 	UMFPACK_LIBDIR="$withval"
         acx_umfpack=yes
@@ -16271,9 +11839,7 @@ fi
 
   if test "x$acx_umfpack" = "xyes" ; then
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIBUMFPACK 1
-_ACEOF
+$as_echo "#define HAVE_LIBUMFPACK 1" >>confdefs.h
 
   fi
 
@@ -16282,18 +11848,14 @@ _ACEOF
                 if test "x$DEAL_II_USE_INTERNAL_UMFPACK" != "xyes" ; then
                   OLD_LDFLAGS="$LDFLAGS"
       LDFLAGS="-L${UMFPACK_DIR}/UMFPACK $LDFLAGS"
-      { $as_echo "$as_me:$LINENO: checking for umfpack_di_defaults in -lumfpack" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for umfpack_di_defaults in -lumfpack" >&5
 $as_echo_n "checking for umfpack_di_defaults in -lumfpack... " >&6; }
-if test "${ac_cv_lib_umfpack_umfpack_di_defaults+set}" = set; then
+if test "${ac_cv_lib_umfpack_umfpack_di_defaults+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lumfpack  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -16311,43 +11873,18 @@ return umfpack_di_defaults ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_umfpack_umfpack_di_defaults=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_umfpack_umfpack_di_defaults=no
+  ac_cv_lib_umfpack_umfpack_di_defaults=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_umfpack_umfpack_di_defaults" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_umfpack_umfpack_di_defaults" >&5
 $as_echo "$ac_cv_lib_umfpack_umfpack_di_defaults" >&6; }
-if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then
+if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then :
 
 
   LIBS="$LIBS -lumfpack"
@@ -16359,18 +11896,14 @@ if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then
 else
 
                     LDFLAGS="-L${UMFPACK_DIR}/lib $OLD_LDFLAGS"
-          { $as_echo "$as_me:$LINENO: checking for umfpack_di_defaults in -lumfpack" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for umfpack_di_defaults in -lumfpack" >&5
 $as_echo_n "checking for umfpack_di_defaults in -lumfpack... " >&6; }
-if test "${ac_cv_lib_umfpack_umfpack_di_defaults+set}" = set; then
+if test "${ac_cv_lib_umfpack_umfpack_di_defaults+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lumfpack  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -16388,43 +11921,18 @@ return umfpack_di_defaults ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_umfpack_umfpack_di_defaults=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_umfpack_umfpack_di_defaults=no
+  ac_cv_lib_umfpack_umfpack_di_defaults=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_umfpack_umfpack_di_defaults" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_umfpack_umfpack_di_defaults" >&5
 $as_echo "$ac_cv_lib_umfpack_umfpack_di_defaults" >&6; }
-if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then
+if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then :
 
 
   LIBS="$LIBS -lumfpack"
@@ -16435,9 +11943,7 @@ if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then
 
 else
 
-              { { $as_echo "$as_me:$LINENO: error: installation of UMFPACK could not be determined" >&5
-$as_echo "$as_me: error: installation of UMFPACK could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
+              as_fn_error "installation of UMFPACK could not be determined" "$LINENO" 5
 
 
 fi
@@ -16449,18 +11955,14 @@ fi
 
                   OLD_LDFLAGS="$LDFLAGS"
       LDFLAGS="-L${UMFPACK_DIR}/AMD/Lib $LDFLAGS"
-      { $as_echo "$as_me:$LINENO: checking for amd_info in -lamd" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for amd_info in -lamd" >&5
 $as_echo_n "checking for amd_info in -lamd... " >&6; }
-if test "${ac_cv_lib_amd_amd_info+set}" = set; then
+if test "${ac_cv_lib_amd_amd_info+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lamd  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -16478,43 +11980,18 @@ return amd_info ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_amd_amd_info=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_amd_amd_info=no
+  ac_cv_lib_amd_amd_info=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_amd_amd_info" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_amd_amd_info" >&5
 $as_echo "$ac_cv_lib_amd_amd_info" >&6; }
-if test "x$ac_cv_lib_amd_amd_info" = x""yes; then
+if test "x$ac_cv_lib_amd_amd_info" = x""yes; then :
 
 
   LIBS="$LIBS -lamd"
@@ -16526,18 +12003,14 @@ if test "x$ac_cv_lib_amd_amd_info" = x""yes; then
 else
 
                     LDFLAGS="-L${UMFPACK_DIR}/lib $OLD_LDFLAGS"
-          { $as_echo "$as_me:$LINENO: checking for amd_info in -lamd" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for amd_info in -lamd" >&5
 $as_echo_n "checking for amd_info in -lamd... " >&6; }
-if test "${ac_cv_lib_amd_amd_info+set}" = set; then
+if test "${ac_cv_lib_amd_amd_info+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lamd  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -16555,43 +12028,18 @@ return amd_info ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_amd_amd_info=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_amd_amd_info=no
+  ac_cv_lib_amd_amd_info=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_amd_amd_info" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_amd_amd_info" >&5
 $as_echo "$ac_cv_lib_amd_amd_info" >&6; }
-if test "x$ac_cv_lib_amd_amd_info" = x""yes; then
+if test "x$ac_cv_lib_amd_amd_info" = x""yes; then :
 
 
   LIBS="$LIBS -lamd"
@@ -16602,9 +12050,7 @@ if test "x$ac_cv_lib_amd_amd_info" = x""yes; then
 
 else
 
-              { { $as_echo "$as_me:$LINENO: error: installation of AMD could not be determined" >&5
-$as_echo "$as_me: error: installation of AMD could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
+              as_fn_error "installation of AMD could not be determined" "$LINENO" 5
 
 
 fi
@@ -16616,64 +12062,54 @@ fi
     fi
 
         as_ac_File=`$as_echo "ac_cv_file_${UMFPACK_DIR}/UMFPACK/Include/umfpack.h" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for ${UMFPACK_DIR}/UMFPACK/Include/umfpack.h" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${UMFPACK_DIR}/UMFPACK/Include/umfpack.h" >&5
 $as_echo_n "checking for ${UMFPACK_DIR}/UMFPACK/Include/umfpack.h... " >&6; }
-if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   test "$cross_compiling" = yes &&
-  { { $as_echo "$as_me:$LINENO: error: cannot check for file existence when cross compiling" >&5
-$as_echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot check for file existence when cross compiling" "$LINENO" 5
 if test -r "${UMFPACK_DIR}/UMFPACK/Include/umfpack.h"; then
   eval "$as_ac_File=yes"
 else
   eval "$as_ac_File=no"
 fi
 fi
-ac_res=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_File
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_File
+   if test "x$as_val" = x""yes; then :
 
         UMFPACK_INCLUDE_DIR=-I${UMFPACK_DIR}/UMFPACK/Include
 
 else
 
         as_ac_File=`$as_echo "ac_cv_file_${UMFPACK_DIR}/include/suitesparse/umfpack.h" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for ${UMFPACK_DIR}/include/suitesparse/umfpack.h" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${UMFPACK_DIR}/include/suitesparse/umfpack.h" >&5
 $as_echo_n "checking for ${UMFPACK_DIR}/include/suitesparse/umfpack.h... " >&6; }
-if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   test "$cross_compiling" = yes &&
-  { { $as_echo "$as_me:$LINENO: error: cannot check for file existence when cross compiling" >&5
-$as_echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot check for file existence when cross compiling" "$LINENO" 5
 if test -r "${UMFPACK_DIR}/include/suitesparse/umfpack.h"; then
   eval "$as_ac_File=yes"
 else
   eval "$as_ac_File=no"
 fi
 fi
-ac_res=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_File
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_File
+   if test "x$as_val" = x""yes; then :
 
             UMFPACK_INCLUDE_DIR=-I${UMFPACK_DIR}/include/suitesparse
 
 else
 
-            { { $as_echo "$as_me:$LINENO: error: installation of UMFPACK could not be determined" >&5
-$as_echo "$as_me: error: installation of UMFPACK could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "installation of UMFPACK could not be determined" "$LINENO" 5
 
 
 fi
@@ -16684,64 +12120,54 @@ fi
 
 
     as_ac_File=`$as_echo "ac_cv_file_${UMFPACK_DIR}/AMD/Include/amd.h" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for ${UMFPACK_DIR}/AMD/Include/amd.h" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${UMFPACK_DIR}/AMD/Include/amd.h" >&5
 $as_echo_n "checking for ${UMFPACK_DIR}/AMD/Include/amd.h... " >&6; }
-if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   test "$cross_compiling" = yes &&
-  { { $as_echo "$as_me:$LINENO: error: cannot check for file existence when cross compiling" >&5
-$as_echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot check for file existence when cross compiling" "$LINENO" 5
 if test -r "${UMFPACK_DIR}/AMD/Include/amd.h"; then
   eval "$as_ac_File=yes"
 else
   eval "$as_ac_File=no"
 fi
 fi
-ac_res=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_File
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_File
+   if test "x$as_val" = x""yes; then :
 
         UMFPACK_INCLUDE_DIR="${UMFPACK_INCLUDE_DIR} -I${UMFPACK_DIR}/AMD/Include"
 
 else
 
         as_ac_File=`$as_echo "ac_cv_file_${UMFPACK_DIR}/include/suitesparse/umfpack.h" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for ${UMFPACK_DIR}/include/suitesparse/umfpack.h" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${UMFPACK_DIR}/include/suitesparse/umfpack.h" >&5
 $as_echo_n "checking for ${UMFPACK_DIR}/include/suitesparse/umfpack.h... " >&6; }
-if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   test "$cross_compiling" = yes &&
-  { { $as_echo "$as_me:$LINENO: error: cannot check for file existence when cross compiling" >&5
-$as_echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot check for file existence when cross compiling" "$LINENO" 5
 if test -r "${UMFPACK_DIR}/include/suitesparse/umfpack.h"; then
   eval "$as_ac_File=yes"
 else
   eval "$as_ac_File=no"
 fi
 fi
-ac_res=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_File
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_File
+   if test "x$as_val" = x""yes; then :
 
             UMFPACK_INCLUDE_DIR="${UMFPACK_INCLUDE_DIR} -I${UMFPACK_DIR}/include/suitesparse"
 
 else
 
-            { { $as_echo "$as_me:$LINENO: error: installation of UMFPACK could not be determined" >&5
-$as_echo "$as_me: error: installation of UMFPACK could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "installation of UMFPACK could not be determined" "$LINENO" 5
 
 
 fi
@@ -16753,36 +12179,30 @@ fi
 
                 if test "x$DEAL_II_USE_INTERNAL_UMFPACK" != "xyes" ; then
       as_ac_File=`$as_echo "ac_cv_file_${UMFPACK_DIR}/UFconfig/UFconfig.h" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for ${UMFPACK_DIR}/UFconfig/UFconfig.h" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${UMFPACK_DIR}/UFconfig/UFconfig.h" >&5
 $as_echo_n "checking for ${UMFPACK_DIR}/UFconfig/UFconfig.h... " >&6; }
-if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_File; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   test "$cross_compiling" = yes &&
-  { { $as_echo "$as_me:$LINENO: error: cannot check for file existence when cross compiling" >&5
-$as_echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot check for file existence when cross compiling" "$LINENO" 5
 if test -r "${UMFPACK_DIR}/UFconfig/UFconfig.h"; then
   eval "$as_ac_File=yes"
 else
   eval "$as_ac_File=no"
 fi
 fi
-ac_res=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_File
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_File'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_File
+   if test "x$as_val" = x""yes; then :
 
           UMFPACK_INCLUDE_DIR="${UMFPACK_INCLUDE_DIR} -I${UMFPACK_DIR}/UFconfig"
 
 else
 
-          { { $as_echo "$as_me:$LINENO: error: not found" >&5
-$as_echo "$as_me: error: not found" >&2;}
-   { (exit 1); exit 1; }; }
+          as_fn_error "not found" "$LINENO" 5
 
 
 fi
@@ -16798,444 +12218,41 @@ fi
        OLD_CPPFLAGS="$CPPFLAGS"
        CXXFLAGS="-I$UMFPACK_INCDIR $CXXFLAGS"
        CPPFLAGS="-I$UMFPACK_INCDIR $CPPFLAGS"
-       if test "${ac_cv_header_umfpack_h+set}" = set; then
-  { $as_echo "$as_me:$LINENO: checking for umfpack.h" >&5
-$as_echo_n "checking for umfpack.h... " >&6; }
-if test "${ac_cv_header_umfpack_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_umfpack_h" >&5
-$as_echo "$ac_cv_header_umfpack_h" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking umfpack.h usability" >&5
-$as_echo_n "checking umfpack.h usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <umfpack.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
+       ac_fn_cxx_check_header_mongrel "$LINENO" "umfpack.h" "ac_cv_header_umfpack_h" "$ac_includes_default"
+if test "x$ac_cv_header_umfpack_h" = x""yes; then :
+
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+  as_fn_error "installation of UMFPACK could not be determined" "$LINENO" 5
 
-	ac_header_compiler=no
 fi
 
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
 
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking umfpack.h presence" >&5
-$as_echo_n "checking umfpack.h presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <umfpack.h>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+       ac_fn_cxx_check_header_mongrel "$LINENO" "amd.h" "ac_cv_header_amd_h" "$ac_includes_default"
+if test "x$ac_cv_header_amd_h" = x""yes; then :
 
-  ac_header_preproc=no
+else
+  as_fn_error "installation of UMFPACK could not be determined" "$LINENO" 5
 fi
 
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
 
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: umfpack.h: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: umfpack.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: umfpack.h: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: umfpack.h: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: umfpack.h: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: umfpack.h: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: umfpack.h:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: umfpack.h:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: umfpack.h: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: umfpack.h: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: umfpack.h:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: umfpack.h:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: umfpack.h: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: umfpack.h: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: umfpack.h: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: umfpack.h: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## -------------------------------- ##
-## Report this to dealii@dealii.org ##
-## -------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for umfpack.h" >&5
-$as_echo_n "checking for umfpack.h... " >&6; }
-if test "${ac_cv_header_umfpack_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_header_umfpack_h=$ac_header_preproc
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_umfpack_h" >&5
-$as_echo "$ac_cv_header_umfpack_h" >&6; }
-
-fi
-if test "x$ac_cv_header_umfpack_h" = x""yes; then
-  :
-else
-  { { $as_echo "$as_me:$LINENO: error: installation of UMFPACK could not be determined" >&5
-$as_echo "$as_me: error: installation of UMFPACK could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
-
-fi
-
-
-       if test "${ac_cv_header_amd_h+set}" = set; then
-  { $as_echo "$as_me:$LINENO: checking for amd.h" >&5
-$as_echo_n "checking for amd.h... " >&6; }
-if test "${ac_cv_header_amd_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_amd_h" >&5
-$as_echo "$ac_cv_header_amd_h" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking amd.h usability" >&5
-$as_echo_n "checking amd.h usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <amd.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking amd.h presence" >&5
-$as_echo_n "checking amd.h presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <amd.h>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: amd.h: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: amd.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: amd.h: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: amd.h: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: amd.h: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: amd.h: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: amd.h:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: amd.h:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: amd.h: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: amd.h: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: amd.h:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: amd.h:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: amd.h: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: amd.h: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: amd.h: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: amd.h: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## -------------------------------- ##
-## Report this to dealii@dealii.org ##
-## -------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for amd.h" >&5
-$as_echo_n "checking for amd.h... " >&6; }
-if test "${ac_cv_header_amd_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_header_amd_h=$ac_header_preproc
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_amd_h" >&5
-$as_echo "$ac_cv_header_amd_h" >&6; }
-
-fi
-if test "x$ac_cv_header_amd_h" = x""yes; then
-  :
-else
-  { { $as_echo "$as_me:$LINENO: error: installation of UMFPACK could not be determined" >&5
-$as_echo "$as_me: error: installation of UMFPACK could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
-fi
-
-
-       if test "${ac_cv_header_UFconfig_h+set}" = set; then
-  { $as_echo "$as_me:$LINENO: checking for UFconfig.h" >&5
-$as_echo_n "checking for UFconfig.h... " >&6; }
-if test "${ac_cv_header_UFconfig_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_UFconfig_h" >&5
-$as_echo "$ac_cv_header_UFconfig_h" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking UFconfig.h usability" >&5
-$as_echo_n "checking UFconfig.h usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <UFconfig.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking UFconfig.h presence" >&5
-$as_echo_n "checking UFconfig.h presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <UFconfig.h>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+       ac_fn_cxx_check_header_mongrel "$LINENO" "UFconfig.h" "ac_cv_header_UFconfig_h" "$ac_includes_default"
+if test "x$ac_cv_header_UFconfig_h" = x""yes; then :
 
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: UFconfig.h: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: UFconfig.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: UFconfig.h: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: UFconfig.h: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: UFconfig.h: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: UFconfig.h: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: UFconfig.h:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: UFconfig.h:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: UFconfig.h: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: UFconfig.h: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: UFconfig.h:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: UFconfig.h:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: UFconfig.h: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: UFconfig.h: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: UFconfig.h: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: UFconfig.h: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## -------------------------------- ##
-## Report this to dealii@dealii.org ##
-## -------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for UFconfig.h" >&5
-$as_echo_n "checking for UFconfig.h... " >&6; }
-if test "${ac_cv_header_UFconfig_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_header_UFconfig_h=$ac_header_preproc
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_UFconfig_h" >&5
-$as_echo "$ac_cv_header_UFconfig_h" >&6; }
-
-fi
-if test "x$ac_cv_header_UFconfig_h" = x""yes; then
-  :
 else
-  { { $as_echo "$as_me:$LINENO: error: installation of UMFPACK could not be determined" >&5
-$as_echo "$as_me: error: installation of UMFPACK could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "installation of UMFPACK could not be determined" "$LINENO" 5
 fi
 
 
 
        if test "x$UMFPACK_LIBDIR" != "x" ; then
-          { $as_echo "$as_me:$LINENO: checking for amd_info in -lamd" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for amd_info in -lamd" >&5
 $as_echo_n "checking for amd_info in -lamd... " >&6; }
-if test "${ac_cv_lib_amd_amd_info+set}" = set; then
+if test "${ac_cv_lib_amd_amd_info+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lamd  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -17253,43 +12270,18 @@ return amd_info ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_amd_amd_info=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_amd_amd_info=no
+  ac_cv_lib_amd_amd_info=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_amd_amd_info" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_amd_amd_info" >&5
 $as_echo "$ac_cv_lib_amd_amd_info" >&6; }
-if test "x$ac_cv_lib_amd_amd_info" = x""yes; then
+if test "x$ac_cv_lib_amd_amd_info" = x""yes; then :
 
 
   LIBS="$LIBS -lamd"
@@ -17299,24 +12291,18 @@ if test "x$ac_cv_lib_amd_amd_info" = x""yes; then
                     fi
 
 else
-  { { $as_echo "$as_me:$LINENO: error: installation of AMD could not be determined" >&5
-$as_echo "$as_me: error: installation of AMD could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "installation of AMD could not be determined" "$LINENO" 5
 
 fi
 
-          { $as_echo "$as_me:$LINENO: checking for umfpack_di_defaults in -lumfpack" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for umfpack_di_defaults in -lumfpack" >&5
 $as_echo_n "checking for umfpack_di_defaults in -lumfpack... " >&6; }
-if test "${ac_cv_lib_umfpack_umfpack_di_defaults+set}" = set; then
+if test "${ac_cv_lib_umfpack_umfpack_di_defaults+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lumfpack  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -17334,43 +12320,18 @@ return umfpack_di_defaults ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_umfpack_umfpack_di_defaults=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_umfpack_umfpack_di_defaults=no
+  ac_cv_lib_umfpack_umfpack_di_defaults=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_umfpack_umfpack_di_defaults" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_umfpack_umfpack_di_defaults" >&5
 $as_echo "$ac_cv_lib_umfpack_umfpack_di_defaults" >&6; }
-if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then
+if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then :
 
 
   LIBS="$LIBS -lumfpack"
@@ -17380,25 +12341,19 @@ if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then
                     fi
 
 else
-  { { $as_echo "$as_me:$LINENO: error: installation of UMFPACK could not be determined" >&5
-$as_echo "$as_me: error: installation of UMFPACK could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "installation of UMFPACK could not be determined" "$LINENO" 5
 
 fi
 
        else
-          { $as_echo "$as_me:$LINENO: checking for amd_info in -lamd" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for amd_info in -lamd" >&5
 $as_echo_n "checking for amd_info in -lamd... " >&6; }
-if test "${ac_cv_lib_amd_amd_info+set}" = set; then
+if test "${ac_cv_lib_amd_amd_info+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lamd  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -17416,67 +12371,36 @@ return amd_info ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_amd_amd_info=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_amd_amd_info=no
+  ac_cv_lib_amd_amd_info=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_amd_amd_info" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_amd_amd_info" >&5
 $as_echo "$ac_cv_lib_amd_amd_info" >&6; }
-if test "x$ac_cv_lib_amd_amd_info" = x""yes; then
+if test "x$ac_cv_lib_amd_amd_info" = x""yes; then :
 
 
   LIBS="$LIBS -lamd"
 
 
 else
-  { { $as_echo "$as_me:$LINENO: error: installation of AMD could not be determined" >&5
-$as_echo "$as_me: error: installation of AMD could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "installation of AMD could not be determined" "$LINENO" 5
 
 fi
 
-          { $as_echo "$as_me:$LINENO: checking for umfpack_di_defaults in -lumfpack" >&5
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for umfpack_di_defaults in -lumfpack" >&5
 $as_echo_n "checking for umfpack_di_defaults in -lumfpack... " >&6; }
-if test "${ac_cv_lib_umfpack_umfpack_di_defaults+set}" = set; then
+if test "${ac_cv_lib_umfpack_umfpack_di_defaults+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lumfpack  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -17494,52 +12418,25 @@ return umfpack_di_defaults ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_lib_umfpack_umfpack_di_defaults=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_umfpack_umfpack_di_defaults=no
+  ac_cv_lib_umfpack_umfpack_di_defaults=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_umfpack_umfpack_di_defaults" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_umfpack_umfpack_di_defaults" >&5
 $as_echo "$ac_cv_lib_umfpack_umfpack_di_defaults" >&6; }
-if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then
+if test "x$ac_cv_lib_umfpack_umfpack_di_defaults" = x""yes; then :
 
 
   LIBS="$LIBS -lumfpack"
 
 
 else
-  { { $as_echo "$as_me:$LINENO: error: installation of UMFPACK could not be determined" >&5
-$as_echo "$as_me: error: installation of UMFPACK could not be determined" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "installation of UMFPACK could not be determined" "$LINENO" 5
 
 fi
 
@@ -17553,23 +12450,19 @@ fi
 
 
 # Check whether --with-lapack was given.
-if test "${with_lapack+set}" = set; then
+if test "${with_lapack+set}" = set; then :
   withval=$with_lapack;
   if test "x$withval" != "xno" ; then
     if test "x$withval" != "xyes" ; then lapack="$withval"; else lapack="lapack"; fi
     as_ac_Lib=`$as_echo "ac_cv_lib_$lapack''_dgbsv_" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for dgbsv_ in -l$lapack" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dgbsv_ in -l$lapack" >&5
 $as_echo_n "checking for dgbsv_ in -l$lapack... " >&6; }
-if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then
+if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-l$lapack  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -17587,62 +12480,31 @@ return dgbsv_ ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_cxx_try_link "$LINENO"; then :
   eval "$as_ac_Lib=yes"
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_Lib=no"
+  eval "$as_ac_Lib=no"
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-ac_res=`eval 'as_val=${'$as_ac_Lib'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+eval ac_res=\$$as_ac_Lib
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_Lib'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+eval as_val=\$$as_ac_Lib
+   if test "x$as_val" = x""yes; then :
 
   LIBS="-l$lapack $LIBS"
 
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIBLAPACK 1
-_ACEOF
+$as_echo "#define HAVE_LIBLAPACK 1" >>confdefs.h
 
         DEAL_II_USE_LAPACK="yes"
 
 
 else
-  { { $as_echo "$as_me:$LINENO: error: LAPACK library $lapack not found" >&5
-$as_echo "$as_me: error: LAPACK library $lapack not found" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "LAPACK library $lapack not found" "$LINENO" 5
 
 fi
 
@@ -17652,417 +12514,48 @@ fi
 
 
 if test "x$with_blas" != "x" -a "x$with_blas" != "xno" ; then
-  { $as_echo "$as_me:$LINENO: checking for daxpy_" >&5
-$as_echo_n "checking for daxpy_... " >&6; }
-if test "${ac_cv_func_daxpy_+set}" = set; then
-  $as_echo_n "(cached) " >&6
+  ac_fn_cxx_check_func "$LINENO" "daxpy_" "ac_cv_func_daxpy_"
+if test "x$ac_cv_func_daxpy_" = x""yes; then :
+
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
+  as_fn_error "BLAS library not installed correctly($with_blas)" "$LINENO" 5
+fi
+
+fi
+
+
+for ac_func in daxpy_ saxpy_ dgemv_ sgemv_ dgeev_ sgeev_ dgeevx_ sgeevx_
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var"
+eval as_val=\$$as_ac_var
+   if test "x$as_val" = x""yes; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define daxpy_ to an innocuous variant, in case <limits.h> declares daxpy_.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define daxpy_ innocuous_daxpy_
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char daxpy_ (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef daxpy_
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char daxpy_ ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_daxpy_ || defined __stub___daxpy_
-choke me
-#endif
-
-int
-main ()
-{
-return daxpy_ ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  ac_cv_func_daxpy_=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_func_daxpy_=no
-fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_func_daxpy_" >&5
-$as_echo "$ac_cv_func_daxpy_" >&6; }
-if test "x$ac_cv_func_daxpy_" = x""yes; then
-  :
-else
-  { { $as_echo "$as_me:$LINENO: error: BLAS library not installed correctly($with_blas)" >&5
-$as_echo "$as_me: error: BLAS library not installed correctly($with_blas)" >&2;}
-   { (exit 1); exit 1; }; }
-fi
-
-fi
-
-
-
-
-
-
-
-
-
-
-for ac_func in daxpy_ saxpy_ dgemv_ sgemv_ dgeev_ sgeev_ dgeevx_ sgeevx_
-do
-as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_func" >&5
-$as_echo_n "checking for $ac_func... " >&6; }
-if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_$ac_func || defined __stub___$ac_func
-choke me
-#endif
-
-int
-main ()
-{
-return $ac_func ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  eval "$as_ac_var=yes"
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_var=no"
-fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-ac_res=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-done
-
-
-
-
-
-
-
-for ac_func in dgemm_ sgemm_ dgetrf_ sgetrf_ dgetri_ sgetri_
-do
-as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_func" >&5
-$as_echo_n "checking for $ac_func... " >&6; }
-if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_$ac_func || defined __stub___$ac_func
-choke me
-#endif
-
-int
-main ()
-{
-return $ac_func ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  eval "$as_ac_var=yes"
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_var=no"
-fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-ac_res=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-done
-
-
-
-
-
 
+fi
+done
 
+for ac_func in dgemm_ sgemm_ dgetrf_ sgetrf_ dgetri_ sgetri_
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var"
+eval as_val=\$$as_ac_var
+   if test "x$as_val" = x""yes; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
 
+fi
+done
 
 for ac_func in dgeqrf_ sgeqrf_ dormqr_ sormqr_ dorgqr_ sorgqr_ dtrtrs_ strtrs_
-do
-as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_func" >&5
-$as_echo_n "checking for $ac_func... " >&6; }
-if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_$ac_func || defined __stub___$ac_func
-choke me
-#endif
-
-int
-main ()
-{
-return $ac_func ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  eval "$as_ac_var=yes"
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_var=no"
-fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-ac_res=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var"
+eval as_val=\$$as_ac_var
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -18070,105 +12563,12 @@ _ACEOF
 fi
 done
 
-
-
-
-
-
-
 for ac_func in dgetrs_ sgetrs_ dstev_ sstev_ dsygv_ ssygv_
-do
-as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_func" >&5
-$as_echo_n "checking for $ac_func... " >&6; }
-if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_$ac_func || defined __stub___$ac_func
-choke me
-#endif
-
-int
-main ()
-{
-return $ac_func ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  eval "$as_ac_var=yes"
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_var=no"
-fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-ac_res=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var"
+eval as_val=\$$as_ac_var
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -18176,105 +12576,12 @@ _ACEOF
 fi
 done
 
-
-
-
-
-
-
 for ac_func in dgesvd_ sgesvd_ dgesdd_ sgesdd_ dgelsd_ sgelsd_
-do
-as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_func" >&5
-$as_echo_n "checking for $ac_func... " >&6; }
-if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_$ac_func || defined __stub___$ac_func
-choke me
-#endif
-
-int
-main ()
-{
-return $ac_func ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  eval "$as_ac_var=yes"
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_var=no"
-fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-ac_res=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var"
+eval as_val=\$$as_ac_var
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -18282,102 +12589,12 @@ _ACEOF
 fi
 done
 
-
-for ac_func in jn
-do
-as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_func" >&5
-$as_echo_n "checking for $ac_func... " >&6; }
-if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_$ac_func || defined __stub___$ac_func
-choke me
-#endif
-
-int
-main ()
-{
-return $ac_func ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  eval "$as_ac_var=yes"
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_var=no"
-fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-ac_res=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_var'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+for ac_func in jn
+do :
+  ac_fn_cxx_check_func "$LINENO" "jn" "ac_cv_func_jn"
+if test "x$ac_cv_func_jn" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+#define HAVE_JN 1
 _ACEOF
 
 fi
@@ -18391,25 +12608,25 @@ done
 
 
 
-{ $as_echo "$as_me:$LINENO: result: " >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
 $as_echo "" >&6; }
-{ $as_echo "$as_me:$LINENO: result: ---------------- checking compiler flags --------------------" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ---------------- checking compiler flags --------------------" >&5
 $as_echo "---------------- checking compiler flags --------------------" >&6; }
 
 
 
 # Check whether --with-cpu was given.
-if test "${with_cpu+set}" = set; then
+if test "${with_cpu+set}" = set; then :
   withval=$with_cpu; withcpu="$withval"
 else
   withcpu=""
 fi
 
-  { $as_echo "$as_me:$LINENO: checking for CPU to optimize for" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for CPU to optimize for" >&5
 $as_echo_n "checking for CPU to optimize for... " >&6; }
   case "$withcpu" in
     PowerPC64)
-        { $as_echo "$as_me:$LINENO: result: PowerPC64" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: PowerPC64" >&5
 $as_echo "PowerPC64" >&6; }
 	case "$GXX_VERSION" in
 	  gcc*)
@@ -18432,7 +12649,7 @@ $as_echo "PowerPC64" >&6; }
         esac
 	;;
     athlon* | pentium* | i386 | i486 | i586 | i686 | k6* | winchip* | opteron)
-        { $as_echo "$as_me:$LINENO: result: x86 derivate ($withcpu)" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: x86 derivate ($withcpu)" >&5
 $as_echo "x86 derivate ($withcpu)" >&6; }
 	case "$GXX_VERSION" in
 	  gcc*)
@@ -18444,7 +12661,7 @@ $as_echo "x86 derivate ($withcpu)" >&6; }
         ;;
 
     native)
-        { $as_echo "$as_me:$LINENO: result: native processor variant" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: native processor variant" >&5
 $as_echo "native processor variant" >&6; }
 	case "$GXX_VERSION" in
 	  gcc*)
@@ -18460,14 +12677,14 @@ $as_echo "native processor variant" >&6; }
         ;;
 
     *)
-        { $as_echo "$as_me:$LINENO: result: none given or not recognized" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: none given or not recognized" >&5
 $as_echo "none given or not recognized" >&6; }
 	;;
   esac
 
 
 
-  { $as_echo "$as_me:$LINENO: checking for consistency of CXXFLAGSG flags" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for consistency of CXXFLAGSG flags" >&5
 $as_echo_n "checking for consistency of CXXFLAGSG flags... " >&6; }
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -18476,11 +12693,7 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   CXXFLAGS="$CXXFLAGSG"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -18491,50 +12704,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { { $as_echo "$as_me:$LINENO: error: invalid combination of flags!" >&5
-$as_echo "$as_me: error: invalid combination of flags!" >&2;}
-   { (exit 1); exit 1; }; }
+      as_fn_error "invalid combination of flags!" "$LINENO" 5
       exit 1;
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-  { $as_echo "$as_me:$LINENO: checking for consistency of CXXFLAGSO flags" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for consistency of CXXFLAGSO flags" >&5
 $as_echo_n "checking for consistency of CXXFLAGSO flags... " >&6; }
   CXXFLAGS="$CXXFLAGSO"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -18545,55 +12731,32 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-      { $as_echo "$as_me:$LINENO: result: yes" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-
-      { { $as_echo "$as_me:$LINENO: error: invalid combination of flags!" >&5
-$as_echo "$as_me: error: invalid combination of flags!" >&2;}
-   { (exit 1); exit 1; }; }
+      as_fn_error "invalid combination of flags!" "$LINENO" 5
       exit 1;
 
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
 
 
 
-{ $as_echo "$as_me:$LINENO: result: " >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
 $as_echo "" >&6; }
-{ $as_echo "$as_me:$LINENO: result: ---------------- configuring other programs -----------------" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ---------------- configuring other programs -----------------" >&5
 $as_echo "---------------- configuring other programs -----------------" >&6; }
 
 
 
 # Check whether --with-doxygen was given.
-if test "${with_doxygen+set}" = set; then
+if test "${with_doxygen+set}" = set; then :
   withval=$with_doxygen; DOXYGEN="$withval"
 else
   DOXYGEN=
@@ -18601,24 +12764,22 @@ fi
 
 
     if test "x$DOXYGEN" != "x" ; then
-    { $as_echo "$as_me:$LINENO: checking for specified doxygen path" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for specified doxygen path" >&5
 $as_echo_n "checking for specified doxygen path... " >&6; }
     if test -r $DOXYGEN ; then
-      { $as_echo "$as_me:$LINENO: result: $DOXYGEN" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DOXYGEN" >&5
 $as_echo "$DOXYGEN" >&6; }
     else
-      { $as_echo "$as_me:$LINENO: result: not found" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
 $as_echo "not found" >&6; }
-      { { $as_echo "$as_me:$LINENO: error: Invalid doxygen path $DOXYGEN" >&5
-$as_echo "$as_me: error: Invalid doxygen path $DOXYGEN" >&2;}
-   { (exit 1); exit 1; }; }
+      as_fn_error "Invalid doxygen path $DOXYGEN" "$LINENO" 5
     fi
   else
                 # Extract the first word of "doxygen", so it can be a program name with args.
 set dummy doxygen; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_DOXYGEN+set}" = set; then
+if test "${ac_cv_path_DOXYGEN+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $DOXYGEN in
@@ -18631,14 +12792,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_DOXYGEN="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -18646,10 +12807,10 @@ esac
 fi
 DOXYGEN=$ac_cv_path_DOXYGEN
 if test -n "$DOXYGEN"; then
-  { $as_echo "$as_me:$LINENO: result: $DOXYGEN" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DOXYGEN" >&5
 $as_echo "$DOXYGEN" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -18660,19 +12821,19 @@ fi
   fi
 
   if test "x$doxygen_not_found" != "xyes" ; then
-    { $as_echo "$as_me:$LINENO: checking doxygen version" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking doxygen version" >&5
 $as_echo_n "checking doxygen version... " >&6; }
 
     DOXYGEN_VERSION_STRING=`($DOXYGEN -v 2>&1) | grep "oxygen version"`
     case "$DOXYGEN_VERSION_STRING" in
       *1.3.* | *1.4.*)
         DOXYGEN_OPTIONS="options.136"
-	{ $as_echo "$as_me:$LINENO: result: pre 1.5" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: pre 1.5" >&5
 $as_echo "pre 1.5" >&6; }
 	;;
       *)
 	DOXYGEN_OPTIONS="options.dox"
-	{ $as_echo "$as_me:$LINENO: result: 1.5.x or later" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: 1.5.x or later" >&5
 $as_echo "1.5.x or later" >&6; }
 	;;
     esac
@@ -18681,9 +12842,9 @@ $as_echo "1.5.x or later" >&6; }
 
   # Extract the first word of "dot", so it can be a program name with args.
 set dummy dot; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_DOT+set}" = set; then
+if test "${ac_cv_prog_DOT+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$DOT"; then
@@ -18694,24 +12855,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_DOT="dot"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 DOT=$ac_cv_prog_DOT
 if test -n "$DOT"; then
-  { $as_echo "$as_me:$LINENO: result: $DOT" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DOT" >&5
 $as_echo "$DOT" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -18729,9 +12890,9 @@ fi
 
 # Extract the first word of "perl", so it can be a program name with args.
 set dummy perl; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PERL+set}" = set; then
+if test "${ac_cv_path_PERL+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $PERL in
@@ -18744,14 +12905,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_PERL="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -18759,10 +12920,10 @@ esac
 fi
 PERL=$ac_cv_path_PERL
 if test -n "$PERL"; then
-  { $as_echo "$as_me:$LINENO: result: $PERL" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL" >&5
 $as_echo "$PERL" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -18772,9 +12933,9 @@ fi
 
 # Extract the first word of "qmake", so it can be a program name with args.
 set dummy qmake; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_QMAKE+set}" = set; then
+if test "${ac_cv_prog_QMAKE+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$QMAKE"; then
@@ -18785,24 +12946,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_QMAKE="qmake"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 QMAKE=$ac_cv_prog_QMAKE
 if test -n "$QMAKE"; then
-  { $as_echo "$as_me:$LINENO: result: $QMAKE" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $QMAKE" >&5
 $as_echo "$QMAKE" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -18810,9 +12971,9 @@ fi
 if test -n "$QMAKE" ; then
   # Extract the first word of "$QMAKE", so it can be a program name with args.
 set dummy $QMAKE; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_QMAKE+set}" = set; then
+if test "${ac_cv_path_QMAKE+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $QMAKE in
@@ -18825,14 +12986,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_QMAKE="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -18840,10 +13001,10 @@ esac
 fi
 QMAKE=$ac_cv_path_QMAKE
 if test -n "$QMAKE"; then
-  { $as_echo "$as_me:$LINENO: result: $QMAKE" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $QMAKE" >&5
 $as_echo "$QMAKE" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -18851,13 +13012,13 @@ fi
 
       DEAL_II_QT_VERSION="`($QMAKE --version 2>&1) | grep -i version | grep -i qt | perl -pi -e 's/.*(\d+)\.(\d+)\.(\d+).*/\1.\2/g;'`"
 
-  { $as_echo "$as_me:$LINENO: checking whether Qt version is >= 4.3" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Qt version is >= 4.3" >&5
 $as_echo_n "checking whether Qt version is >= 4.3... " >&6; }
   if (echo $DEAL_II_QT_VERSION | perl -e '$ver=<>; if ($ver < 4.3) { exit(1); }') ; then
-    { $as_echo "$as_me:$LINENO: result: yes" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
   else
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
     QMAKE=
   fi
@@ -18875,9 +13036,9 @@ subdirs="$subdirs contrib tests"
 
 
 
-{ $as_echo "$as_me:$LINENO: result: " >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
 $as_echo "" >&6; }
-{ $as_echo "$as_me:$LINENO: result: ---------------- generating output --------------------------" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ---------------- generating output --------------------------" >&5
 $as_echo "---------------- generating output --------------------------" >&6; }
 
 
@@ -18886,8 +13047,6 @@ $as_echo "---------------- generating output --------------------------" >&6; }
 
 
 
-
-
 LDFLAGS="-L$DEAL_II_PATH/lib $LDFLAGS"
 
 
@@ -18926,8 +13085,8 @@ for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
   # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
   #    will be set to the directory where LIBOBJS objects are built.
-  ac_libobjs="$ac_libobjs \${LIBOBJDIR}$ac_i\$U.$ac_objext"
-  ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo'
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
 done
 LIBOBJS=$ac_libobjs
 
@@ -18939,9 +13098,10 @@ LTLIBOBJS=$ac_ltlibobjs
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ $as_echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
 $as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
-cat >$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
 #! $SHELL
 # Generated by $as_me.
 # Run this file to recreate the current configuration.
@@ -18951,17 +13111,18 @@ cat >$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 debug=false
 ac_cs_recheck=false
 ac_cs_silent=false
-SHELL=\${CONFIG_SHELL-$SHELL}
-_ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-## --------------------- ##
-## M4sh Initialization.  ##
-## --------------------- ##
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
@@ -18969,23 +13130,15 @@ if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
 else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
 esac
-
 fi
 
 
-
-
-# PATH needs CR
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
-as_cr_alnum=$as_cr_Letters$as_cr_digits
-
 as_nl='
 '
 export as_nl
@@ -18993,7 +13146,13 @@ export as_nl
 as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-if (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
   as_echo='printf %s\n'
   as_echo_n='printf %s'
 else
@@ -19004,7 +13163,7 @@ else
     as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
     as_echo_n_body='eval
       arg=$1;
-      case $arg in
+      case $arg in #(
       *"$as_nl"*)
 	expr "X$arg" : "X\\(.*\\)$as_nl";
 	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
@@ -19027,13 +13186,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
   }
 fi
 
-# Support unset when possible.
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
-  as_unset=unset
-else
-  as_unset=false
-fi
-
 
 # IFS
 # We need space, tab and new line, in precisely that order.  Quoting is
@@ -19043,15 +13195,15 @@ fi
 IFS=" ""	$as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
-case $0 in
+case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
-done
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
 IFS=$as_save_IFS
 
      ;;
@@ -19063,12 +13215,16 @@ if test "x$as_myself" = x; then
 fi
 if test ! -f "$as_myself"; then
   $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  { (exit 1); exit 1; }
+  exit 1
 fi
 
-# Work around bugs in pre-3.0 UWIN ksh.
-for as_var in ENV MAIL MAILPATH
-do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
 done
 PS1='$ '
 PS2='> '
@@ -19080,7 +13236,89 @@ export LC_ALL
 LANGUAGE=C
 export LANGUAGE
 
-# Required to use basename.
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error ERROR [LINENO LOG_FD]
+# ---------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with status $?, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$?; test $as_status -eq 0 && as_status=1
+  if test "$3"; then
+    as_lineno=${as_lineno-"$2"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $1" >&$3
+  fi
+  $as_echo "$as_me: error: $1" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
 if expr a : '\(a\)' >/dev/null 2>&1 &&
    test "X`expr 00001 : '.*\(...\)'`" = X001; then
   as_expr=expr
@@ -19094,8 +13332,12 @@ else
   as_basename=false
 fi
 
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
 
-# Name of the executable.
 as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
@@ -19115,76 +13357,25 @@ $as_echo X/"$0" |
 	  }
 	  s/.*/./; q'`
 
-# CDPATH.
-$as_unset CDPATH
-
-
-
-  as_lineno_1=$LINENO
-  as_lineno_2=$LINENO
-  test "x$as_lineno_1" != "x$as_lineno_2" &&
-  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2" || {
-
-  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
-  # uniformly replaced by the line number.  The first 'sed' inserts a
-  # line-number line after each line using $LINENO; the second 'sed'
-  # does the real work.  The second script uses 'N' to pair each
-  # line-number line with the line containing $LINENO, and appends
-  # trailing '-' during substitution so that $LINENO is not a special
-  # case at line end.
-  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
-  # scripts with optimization help from Paolo Bonzini.  Blame Lee
-  # E. McMahon (1931-1989) for sed's syntax.  :-)
-  sed -n '
-    p
-    /[$]LINENO/=
-  ' <$as_myself |
-    sed '
-      s/[$]LINENO.*/&-/
-      t lineno
-      b
-      :lineno
-      N
-      :loop
-      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
-      t loop
-      s/-\n.*//
-    ' >$as_me.lineno &&
-  chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
-   { (exit 1); exit 1; }; }
-
-  # Don't try to exec as it changes $[0], causing all sort of problems
-  # (the dirname of $[0] is not the place where we might find the
-  # original and so on.  Autoconf is especially sensitive to this).
-  . "./$as_me.lineno"
-  # Exit status is that of the last command.
-  exit
-}
-
-
-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
-  as_dirname=dirname
-else
-  as_dirname=false
-fi
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
 
 ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in
+case `echo -n x` in #(((((
 -n*)
-  case `echo 'x\c'` in
+  case `echo 'xy\c'` in
   *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  *)   ECHO_C='\c';;
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
   esac;;
 *)
   ECHO_N='-n';;
 esac
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
 
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
@@ -19213,8 +13404,56 @@ fi
 rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
 rmdir conf$$.dir 2>/dev/null
 
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
 if mkdir -p . 2>/dev/null; then
-  as_mkdir_p=:
+  as_mkdir_p='mkdir -p "$as_dir"'
 else
   test -d ./-p && rmdir ./-p
   as_mkdir_p=false
@@ -19233,10 +13472,10 @@ else
       if test -d "$1"; then
 	test -d "$1/.";
       else
-	case $1 in
+	case $1 in #(
 	-*)set "./$1";;
 	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in
+	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
 	???[sx]*):;;*)false;;esac;fi
     '\'' sh
   '
@@ -19251,13 +13490,19 @@ as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
 
 
 exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
 
-# Save the log message, to keep $[0] and so on meaningful, and to
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by deal.II $as_me 6.4.pre, which was
-generated by GNU Autoconf 2.63.  Invocation command line was
+This file was extended by deal.II $as_me 7.0.0, which was
+generated by GNU Autoconf 2.65.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -19288,13 +13533,15 @@ _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 ac_cs_usage="\
-\`$as_me' instantiates files from templates according to the
-current configuration.
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
 
-Usage: $0 [OPTION]... [FILE]...
+Usage: $0 [OPTION]... [TAG]...
 
   -h, --help       print this help, then exit
   -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
   -q, --quiet, --silent
                    do not print progress messages
   -d, --debug      don't remove temporary files
@@ -19310,16 +13557,17 @@ $config_files
 Configuration headers:
 $config_headers
 
-Report bugs to <bug-autoconf@gnu.org>."
+Report bugs to <dealii@dealii.org>."
 
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-deal.II config.status 6.4.pre
-configured by $0, generated by GNU Autoconf 2.63,
-  with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
+deal.II config.status 7.0.0
+configured by $0, generated by GNU Autoconf 2.65,
+  with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2008 Free Software Foundation, Inc.
+Copyright (C) 2009 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -19352,6 +13600,8 @@ do
     ac_cs_recheck=: ;;
   --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
     $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
   --debug | --debu | --deb | --de | --d | -d )
     debug=: ;;
   --file | --fil | --fi | --f )
@@ -19359,20 +13609,19 @@ do
     case $ac_optarg in
     *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
-    CONFIG_FILES="$CONFIG_FILES '$ac_optarg'"
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
     ac_need_defaults=false;;
   --header | --heade | --head | --hea )
     $ac_shift
     case $ac_optarg in
     *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
-    CONFIG_HEADERS="$CONFIG_HEADERS '$ac_optarg'"
+    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
     ac_need_defaults=false;;
   --he | --h)
     # Conflict between --help and --header
-    { $as_echo "$as_me: error: ambiguous option: $1
-Try \`$0 --help' for more information." >&2
-   { (exit 1); exit 1; }; };;
+    as_fn_error "ambiguous option: \`$1'
+Try \`$0 --help' for more information.";;
   --help | --hel | -h )
     $as_echo "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
@@ -19380,11 +13629,10 @@ Try \`$0 --help' for more information." >&2
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) { $as_echo "$as_me: error: unrecognized option: $1
-Try \`$0 --help' for more information." >&2
-   { (exit 1); exit 1; }; } ;;
+  -*) as_fn_error "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
 
-  *) ac_config_targets="$ac_config_targets $1"
+  *) as_fn_append ac_config_targets " $1"
      ac_need_defaults=false ;;
 
   esac
@@ -19433,9 +13681,7 @@ do
     "include/deal.II/base/config.h") CONFIG_HEADERS="$CONFIG_HEADERS include/deal.II/base/config.h" ;;
     "$process_files") CONFIG_FILES="$CONFIG_FILES $process_files" ;;
 
-  *) { { $as_echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
-$as_echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
-   { (exit 1); exit 1; }; };;
+  *) as_fn_error "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -19461,7 +13707,7 @@ $debug ||
   trap 'exit_status=$?
   { test -z "$tmp" || test ! -d "$tmp" || rm -fr "$tmp"; } && exit $exit_status
 ' 0
-  trap '{ (exit 1); exit 1; }' 1 2 13 15
+  trap 'as_fn_exit 1' 1 2 13 15
 }
 # Create a (secure) tmp directory for tmp files.
 
@@ -19472,11 +13718,7 @@ $debug ||
 {
   tmp=./conf$$-$RANDOM
   (umask 077 && mkdir "$tmp")
-} ||
-{
-   $as_echo "$as_me: cannot create a temporary directory in ." >&2
-   { (exit 1); exit 1; }
-}
+} || as_fn_error "cannot create a temporary directory in ." "$LINENO" 5
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
@@ -19484,10 +13726,16 @@ $debug ||
 if test -n "$CONFIG_FILES"; then
 
 
-ac_cr='
'
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
 ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
 if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
-  ac_cs_awk_cr='\\r'
+  ac_cs_awk_cr='\r'
 else
   ac_cs_awk_cr=$ac_cr
 fi
@@ -19501,24 +13749,18 @@ _ACEOF
   echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
   echo "_ACEOF"
 } >conf$$subs.sh ||
-  { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
 ac_delim_num=`echo "$ac_subst_vars" | grep -c '$'`
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   . ./conf$$subs.sh ||
-    { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
 
   ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
   if test $ac_delim_n = $ac_delim_num; then
     break
   elif $ac_last_try; then
-    { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
   else
     ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
   fi
@@ -19540,7 +13782,7 @@ s/'"$ac_delim"'$//
 t delim
 :nl
 h
-s/\(.\{148\}\).*/\1/
+s/\(.\{148\}\)..*/\1/
 t more1
 s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
 p
@@ -19554,7 +13796,7 @@ s/.\{148\}//
 t nl
 :delim
 h
-s/\(.\{148\}\).*/\1/
+s/\(.\{148\}\)..*/\1/
 t more2
 s/["\\]/\\&/g; s/^/"/; s/$/"/
 p
@@ -19607,9 +13849,7 @@ if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
 else
   cat
 fi < "$tmp/subs1.awk" > "$tmp/subs.awk" \
-  || { { $as_echo "$as_me:$LINENO: error: could not setup config files machinery" >&5
-$as_echo "$as_me: error: could not setup config files machinery" >&2;}
-   { (exit 1); exit 1; }; }
+  || as_fn_error "could not setup config files machinery" "$LINENO" 5
 _ACEOF
 
 # VPATH may cause trouble with some makes, so we remove $(srcdir),
@@ -19650,9 +13890,7 @@ for ac_last_try in false false :; do
   if test -z "$ac_t"; then
     break
   elif $ac_last_try; then
-    { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_HEADERS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_HEADERS" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "could not make $CONFIG_HEADERS" "$LINENO" 5
   else
     ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
   fi
@@ -19737,9 +13975,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 _ACAWK
 _ACEOF
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-  { { $as_echo "$as_me:$LINENO: error: could not setup config headers machinery" >&5
-$as_echo "$as_me: error: could not setup config headers machinery" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "could not setup config headers machinery" "$LINENO" 5
 fi # test -n "$CONFIG_HEADERS"
 
 
@@ -19752,9 +13988,7 @@ do
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) { { $as_echo "$as_me:$LINENO: error: invalid tag $ac_tag" >&5
-$as_echo "$as_me: error: invalid tag $ac_tag" >&2;}
-   { (exit 1); exit 1; }; };;
+  :L* | :C*:*) as_fn_error "invalid tag \`$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -19782,12 +14016,10 @@ $as_echo "$as_me: error: invalid tag $ac_tag" >&2;}
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   { { $as_echo "$as_me:$LINENO: error: cannot find input file: $ac_f" >&5
-$as_echo "$as_me: error: cannot find input file: $ac_f" >&2;}
-   { (exit 1); exit 1; }; };;
+	   as_fn_error "cannot find input file: \`$ac_f'" "$LINENO" 5;;
       esac
       case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
-      ac_file_inputs="$ac_file_inputs '$ac_f'"
+      as_fn_append ac_file_inputs " '$ac_f'"
     done
 
     # Let's still pretend it is `configure' which instantiates (i.e., don't
@@ -19798,7 +14030,7 @@ $as_echo "$as_me: error: cannot find input file: $ac_f" >&2;}
 	`' by configure.'
     if test x"$ac_file" != x-; then
       configure_input="$ac_file.  $configure_input"
-      { $as_echo "$as_me:$LINENO: creating $ac_file" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
 $as_echo "$as_me: creating $ac_file" >&6;}
     fi
     # Neutralize special characters interpreted by sed in replacement strings.
@@ -19811,9 +14043,7 @@ $as_echo "$as_me: creating $ac_file" >&6;}
 
     case $ac_tag in
     *:-:* | *:-) cat >"$tmp/stdin" \
-      || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; } ;;
+      || as_fn_error "could not create $ac_file" "$LINENO" 5 ;;
     esac
     ;;
   esac
@@ -19841,47 +14071,7 @@ $as_echo X"$ac_file" |
 	    q
 	  }
 	  s/.*/./; q'`
-  { as_dir="$ac_dir"
-  case $as_dir in #(
-  -*) as_dir=./$as_dir;;
-  esac
-  test -d "$as_dir" || { $as_mkdir_p && mkdir -p "$as_dir"; } || {
-    as_dirs=
-    while :; do
-      case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
-      *) as_qdir=$as_dir;;
-      esac
-      as_dirs="'$as_qdir' $as_dirs"
-      as_dir=`$as_dirname -- "$as_dir" ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$as_dir" : 'X\(//\)[^/]' \| \
-	 X"$as_dir" : 'X\(//\)$' \| \
-	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-      test -d "$as_dir" && break
-    done
-    test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || { { $as_echo "$as_me:$LINENO: error: cannot create directory $as_dir" >&5
-$as_echo "$as_me: error: cannot create directory $as_dir" >&2;}
-   { (exit 1); exit 1; }; }; }
+  as_dir="$ac_dir"; as_fn_mkdir_p
   ac_builddir=.
 
 case "$ac_dir" in
@@ -19929,7 +14119,6 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # If the template does not know about datarootdir, expand it.
 # FIXME: This hack should be removed a few years after 2.60.
 ac_datarootdir_hack=; ac_datarootdir_seen=
-
 ac_sed_dataroot='
 /datarootdir/ {
   p
@@ -19939,12 +14128,11 @@ ac_sed_dataroot='
 /@docdir@/p
 /@infodir@/p
 /@localedir@/p
-/@mandir@/p
-'
+/@mandir@/p'
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
 *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { $as_echo "$as_me:$LINENO: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
 $as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
@@ -19954,7 +14142,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   s&@infodir@&$infodir&g
   s&@localedir@&$localedir&g
   s&@mandir@&$mandir&g
-    s&\\\${datarootdir}&$datarootdir&g' ;;
+  s&\\\${datarootdir}&$datarootdir&g' ;;
 esac
 _ACEOF
 
@@ -19981,14 +14169,12 @@ s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
 $ac_datarootdir_hack
 "
 eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$tmp/subs.awk" >$tmp/out \
-  || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; }
+  || as_fn_error "could not create $ac_file" "$LINENO" 5
 
 test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
   { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' "$tmp/out"`; test -z "$ac_out"; } &&
-  { $as_echo "$as_me:$LINENO: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined." >&5
 $as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined." >&2;}
@@ -19998,9 +14184,7 @@ which seems to be undefined.  Please make sure it is defined." >&2;}
   -) cat "$tmp/out" && rm -f "$tmp/out";;
   *) rm -f "$ac_file" && mv "$tmp/out" "$ac_file";;
   esac \
-  || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; }
+  || as_fn_error "could not create $ac_file" "$LINENO" 5
  ;;
   :H)
   #
@@ -20011,25 +14195,19 @@ $as_echo "$as_me: error: could not create $ac_file" >&2;}
       $as_echo "/* $configure_input  */" \
       && eval '$AWK -f "$tmp/defines.awk"' "$ac_file_inputs"
     } >"$tmp/config.h" \
-      || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; }
+      || as_fn_error "could not create $ac_file" "$LINENO" 5
     if diff "$ac_file" "$tmp/config.h" >/dev/null 2>&1; then
-      { $as_echo "$as_me:$LINENO: $ac_file is unchanged" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
 $as_echo "$as_me: $ac_file is unchanged" >&6;}
     else
       rm -f "$ac_file"
       mv "$tmp/config.h" "$ac_file" \
-	|| { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; }
+	|| as_fn_error "could not create $ac_file" "$LINENO" 5
     fi
   else
     $as_echo "/* $configure_input  */" \
       && eval '$AWK -f "$tmp/defines.awk"' "$ac_file_inputs" \
-      || { { $as_echo "$as_me:$LINENO: error: could not create -" >&5
-$as_echo "$as_me: error: could not create -" >&2;}
-   { (exit 1); exit 1; }; }
+      || as_fn_error "could not create -" "$LINENO" 5
   fi
  ;;
 
@@ -20039,15 +14217,12 @@ $as_echo "$as_me: error: could not create -" >&2;}
 done # for ac_tag
 
 
-{ (exit 0); exit 0; }
+as_fn_exit 0
 _ACEOF
-chmod +x $CONFIG_STATUS
 ac_clean_files=$ac_clean_files_save
 
 test $ac_write_fail = 0 ||
-  { { $as_echo "$as_me:$LINENO: error: write failure creating $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: write failure creating $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "write failure creating $CONFIG_STATUS" "$LINENO" 5
 
 
 # configure is writing to config.log, and then calls config.status.
@@ -20068,7 +14243,7 @@ if test "$no_create" != yes; then
   exec 5>>config.log
   # Use ||, not &&, to avoid exiting from the if with $? = 1, which
   # would make configure fail if this is the last instruction.
-  $ac_cs_success || { (exit 1); exit 1; }
+  $ac_cs_success || as_fn_exit $?
 fi
 
 #
@@ -20112,7 +14287,7 @@ if test "$no_recursion" != yes; then
       case $ac_arg in
       *\'*) ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
       esac
-      ac_sub_configure_args="$ac_sub_configure_args '$ac_arg'" ;;
+      as_fn_append ac_sub_configure_args " '$ac_arg'" ;;
     esac
   done
 
@@ -20141,49 +14316,9 @@ if test "$no_recursion" != yes; then
     test -d "$srcdir/$ac_dir" || continue
 
     ac_msg="=== configuring in $ac_dir (`pwd`/$ac_dir)"
-    $as_echo "$as_me:$LINENO: $ac_msg" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: $ac_msg" >&5
     $as_echo "$ac_msg" >&6
-    { as_dir="$ac_dir"
-  case $as_dir in #(
-  -*) as_dir=./$as_dir;;
-  esac
-  test -d "$as_dir" || { $as_mkdir_p && mkdir -p "$as_dir"; } || {
-    as_dirs=
-    while :; do
-      case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
-      *) as_qdir=$as_dir;;
-      esac
-      as_dirs="'$as_qdir' $as_dirs"
-      as_dir=`$as_dirname -- "$as_dir" ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$as_dir" : 'X\(//\)[^/]' \| \
-	 X"$as_dir" : 'X\(//\)$' \| \
-	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-      test -d "$as_dir" && break
-    done
-    test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || { { $as_echo "$as_me:$LINENO: error: cannot create directory $as_dir" >&5
-$as_echo "$as_me: error: cannot create directory $as_dir" >&2;}
-   { (exit 1); exit 1; }; }; }
+    as_dir="$ac_dir"; as_fn_mkdir_p
     ac_builddir=.
 
 case "$ac_dir" in
@@ -20230,7 +14365,7 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
       # This should be Cygnus configure.
       ac_sub_configure=$ac_aux_dir/configure
     else
-      { $as_echo "$as_me:$LINENO: WARNING: no configuration information is in $ac_dir" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: no configuration information is in $ac_dir" >&5
 $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2;}
       ac_sub_configure=
     fi
@@ -20244,21 +14379,19 @@ $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2;}
 	ac_sub_cache_file=$ac_top_build_prefix$cache_file ;;
       esac
 
-      { $as_echo "$as_me:$LINENO: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&5
 $as_echo "$as_me: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&6;}
       # The eval makes quoting arguments work.
       eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \
 	   --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" ||
-	{ { $as_echo "$as_me:$LINENO: error: $ac_sub_configure failed for $ac_dir" >&5
-$as_echo "$as_me: error: $ac_sub_configure failed for $ac_dir" >&2;}
-   { (exit 1); exit 1; }; }
+	as_fn_error "$ac_sub_configure failed for $ac_dir" "$LINENO" 5
     fi
 
     cd "$ac_popdir"
   done
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:$LINENO: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
 
diff --git a/deal.II/configure.in b/deal.II/configure.in
index bc726c2e66..a99702fa03 100644
--- a/deal.II/configure.in
+++ b/deal.II/configure.in
@@ -23,7 +23,7 @@ dnl clearing the cache
 define([AC_CACHE_LOAD], )dnl
 define([AC_CACHE_SAVE], )dnl
 
-AC_INIT(deal.II, 6.4.pre, dealii@dealii.org, deal.II)
+AC_INIT(deal.II, 7.0.0, dealii@dealii.org, deal.II)
 
 AC_REVISION($Revision$)
 AC_PREREQ(2.61)