From 5d1fd7ef178a5132e6354968879add2c2a320b39 Mon Sep 17 00:00:00 2001
From: wolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Mon, 22 Jan 2001 09:17:22 +0000
Subject: [PATCH] Conditionally declare lrand48, if so needed.

git-svn-id: https://svn.dealii.org/branches/Branch-3-1@3745 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/aclocal.m4                            |  34 ++-
 deal.II/configure                             | 213 +++++++++++-------
 deal.II/configure.in                          |   3 +-
 .../deal.II/source/dofs/dof_renumbering.cc    |  11 +
 4 files changed, 177 insertions(+), 84 deletions(-)

diff --git a/deal.II/aclocal.m4 b/deal.II/aclocal.m4
index 08d2e69ee3..c6357aa89c 100644
--- a/deal.II/aclocal.m4
+++ b/deal.II/aclocal.m4
@@ -364,4 +364,36 @@ AC_DEFUN(DEAL_II_HAVE_STD_ITERATOR, dnl
     [
       AC_MSG_RESULT(no)
     ])
-)
\ No newline at end of file
+)
+
+
+dnl For gcc 2.95, when using the random_shuffle function with -ansi compiler flag,
+dnl there is an error saying that lrand48 is undeclared. Fix that by declaring
+dnl that function ourselves if necessary.
+dnl
+dnl Usage: DEAL_II_HAVE_LRAND48_DECLARED
+dnl
+AC_DEFUN(DEAL_II_HAVE_LRAND48_DECLARED, dnl
+  AC_MSG_CHECKING(whether lrand48 needs to be declared with -ansi)
+  AC_LANG_CPLUSPLUS
+  CXXFLAGS="$CXXFLAGSG"
+  AC_TRY_COMPILE(
+    [
+#include <vector>
+#include <algorithm>
+
+void f()
+{
+  std::vector<unsigned int> new_indices;
+  random_shuffle (new_indices.begin(), new_indices.end());
+};
+    ],
+    [],
+    [
+      AC_MSG_RESULT(no)
+    ],
+    [
+      AC_MSG_RESULT(yes)
+      AC_DEFINE(DEAL_II_DECLARE_LRAND48)
+    ])
+)
diff --git a/deal.II/configure b/deal.II/configure
index c4266d44d4..bc8debb292 100755
--- a/deal.II/configure
+++ b/deal.II/configure
@@ -32,6 +32,10 @@
 
 
 
+
+
+
+
 
 
 
@@ -634,7 +638,7 @@ else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
 fi
 
 echo $ac_n "checking host system type""... $ac_c" 1>&6
-echo "configure:638: checking host system type" >&5
+echo "configure:642: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -655,7 +659,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$host" 1>&6
 
 echo $ac_n "checking target system type""... $ac_c" 1>&6
-echo "configure:659: checking target system type" >&5
+echo "configure:663: checking target system type" >&5
 
 target_alias=$target
 case "$target_alias" in
@@ -673,7 +677,7 @@ target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$target" 1>&6
 
 echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:677: checking build system type" >&5
+echo "configure:681: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
@@ -750,7 +754,7 @@ fi
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:754: checking for $ac_word" >&5
+echo "configure:758: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -780,7 +784,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:784: checking for $ac_word" >&5
+echo "configure:788: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -831,7 +835,7 @@ fi
       # Extract the first word of "cl", so it can be a program name with args.
 set dummy cl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:835: checking for $ac_word" >&5
+echo "configure:839: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -863,7 +867,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:867: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:871: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -874,12 +878,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 878 "configure"
+#line 882 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:883: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:887: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -905,12 +909,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:909: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:913: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:914: checking whether we are using GNU C" >&5
+echo "configure:918: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -919,7 +923,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:923: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:927: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -938,7 +942,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
 ac_save_CFLAGS="$CFLAGS"
 CFLAGS=
 echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:942: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:946: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -972,7 +976,7 @@ fi
 # Extract the first word of "$CC", so it can be a program name with args.
 set dummy $CC; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:976: checking for $ac_word" >&5
+echo "configure:980: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1012,7 +1016,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1016: checking for $ac_word" >&5
+echo "configure:1020: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CXX'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1044,7 +1048,7 @@ test -n "$CXX" || CXX="gcc"
 
 
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1048: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
+echo "configure:1052: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
 
 ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1055,12 +1059,12 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 1059 "configure"
+#line 1063 "configure"
 #include "confdefs.h"
 
 int main(){return(0);}
 EOF
-if { (eval echo configure:1064: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1068: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cxx_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -1086,12 +1090,12 @@ if test $ac_cv_prog_cxx_works = no; then
   { echo "configure: error: installation or configuration problem: C++ compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1090: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1094: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cxx_cross" 1>&6
 cross_compiling=$ac_cv_prog_cxx_cross
 
 echo $ac_n "checking whether we are using GNU C++""... $ac_c" 1>&6
-echo "configure:1095: checking whether we are using GNU C++" >&5
+echo "configure:1099: checking whether we are using GNU C++" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gxx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1100,7 +1104,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1104: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1108: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gxx=yes
 else
   ac_cv_prog_gxx=no
@@ -1119,7 +1123,7 @@ ac_test_CXXFLAGS="${CXXFLAGS+set}"
 ac_save_CXXFLAGS="$CXXFLAGS"
 CXXFLAGS=
 echo $ac_n "checking whether ${CXX-g++} accepts -g""... $ac_c" 1>&6
-echo "configure:1123: checking whether ${CXX-g++} accepts -g" >&5
+echo "configure:1127: checking whether ${CXX-g++} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cxx_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1153,7 +1157,7 @@ fi
 # Extract the first word of "$CXX", so it can be a program name with args.
 set dummy $CXX; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1157: checking for $ac_word" >&5
+echo "configure:1161: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CXX'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1233,7 +1237,7 @@ fi
 # Extract the first word of "perl", so it can be a program name with args.
 set dummy perl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1237: checking for $ac_word" >&5
+echo "configure:1241: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_PERL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1323,12 +1327,12 @@ fi
 
 if test "$GXX" = yes ; then
   echo $ac_n "checking whether -ggdb works for long symbols""... $ac_c" 1>&6
-echo "configure:1327: checking whether -ggdb works for long symbols" >&5
+echo "configure:1331: checking whether -ggdb works for long symbols" >&5
   case "$target" in
           alpha*-osf*)
 	  CXXFLAGS="-ggdb $CXXFLAGSG"
 	  cat > conftest.$ac_ext <<EOF
-#line 1332 "configure"
+#line 1336 "configure"
 #include "confdefs.h"
 
 #include <string>
@@ -1349,7 +1353,7 @@ int main() {
 	    
 ; return 0; }
 EOF
-if { (eval echo configure:1353: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1357: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
               CXXFLAGSG="-ggdb $CXXFLAGSG"
@@ -1377,14 +1381,59 @@ else
     CXXFLAGSG="-g $CXXFLAGSG"
 fi
 
+  echo $ac_n "checking whether lrand48 needs to be declared with -ansi""... $ac_c" 1>&6
+echo "configure:1386: checking whether lrand48 needs to be declared with -ansi" >&5
+  ac_ext=C
+# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cxx_cross
+
+  CXXFLAGS="$CXXFLAGSG"
+  cat > conftest.$ac_ext <<EOF
+#line 1396 "configure"
+#include "confdefs.h"
+
+#include <vector>
+#include <algorithm>
+
+void f()
+{
+  std::vector<unsigned int> new_indices;
+  random_shuffle (new_indices.begin(), new_indices.end());
+};
+    
+int main() {
+
+; return 0; }
+EOF
+if { (eval echo configure:1412: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  
+      echo "$ac_t""no" 1>&6
+    
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  
+      echo "$ac_t""yes" 1>&6
+      cat >> confdefs.h <<\EOF
+#define DEAL_II_DECLARE_LRAND48 1
+EOF
+
+    
+fi
+rm -f conftest*
 
 
   echo $ac_n "checking whether AssertThrow works with debug flags""... $ac_c" 1>&6
-echo "configure:1384: checking whether AssertThrow works with debug flags" >&5
+echo "configure:1433: checking whether AssertThrow works with debug flags" >&5
   
   CXXFLAGS=$CXXFLAGSG
   cat > conftest.$ac_ext <<EOF
-#line 1388 "configure"
+#line 1437 "configure"
 #include "confdefs.h"
 
 #include "base/include/base/exceptions.h"
@@ -1395,7 +1444,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:1399: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1448: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	echo "$ac_t"""yes"" 1>&6
@@ -1412,11 +1461,11 @@ fi
 rm -f conftest*
 
   echo $ac_n "checking whether AssertThrow works with optimized flags""... $ac_c" 1>&6
-echo "configure:1416: checking whether AssertThrow works with optimized flags" >&5
+echo "configure:1465: checking whether AssertThrow works with optimized flags" >&5
   
   CXXFLAGS=$CXXFLAGSO
   cat > conftest.$ac_ext <<EOF
-#line 1420 "configure"
+#line 1469 "configure"
 #include "confdefs.h"
 
 #include "base/include/base/exceptions.h"
@@ -1427,7 +1476,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:1431: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1480: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	echo "$ac_t"""yes"" 1>&6
@@ -1445,7 +1494,7 @@ rm -f conftest*
 
 
   echo $ac_n "checking for std::vector bug""... $ac_c" 1>&6
-echo "configure:1449: checking for std::vector bug" >&5
+echo "configure:1498: checking for std::vector bug" >&5
   ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -1455,7 +1504,7 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
   CXXFLAGS="$CXXFLAGSG"
   cat > conftest.$ac_ext <<EOF
-#line 1459 "configure"
+#line 1508 "configure"
 #include "confdefs.h"
 
       namespace std {
@@ -1475,7 +1524,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1479: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1528: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
       echo "$ac_t""no" 1>&6
@@ -1496,7 +1545,7 @@ rm -f conftest*
 
 
   echo $ac_n "checking for std::iterator class""... $ac_c" 1>&6
-echo "configure:1500: checking for std::iterator class" >&5
+echo "configure:1549: checking for std::iterator class" >&5
   ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -1506,7 +1555,7 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
   CXXFLAGS="$CXXFLAGSG"
   cat > conftest.$ac_ext <<EOF
-#line 1510 "configure"
+#line 1559 "configure"
 #include "confdefs.h"
 
 #include <iterator>
@@ -1517,7 +1566,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1521: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1570: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
       echo "$ac_t""yes" 1>&6
@@ -1554,7 +1603,7 @@ if test "$enablemultithreading" = yes ; then
   if test "$GXX" = yes ; then
     
   echo $ac_n "checking for platform specific thread flags""... $ac_c" 1>&6
-echo "configure:1558: checking for platform specific thread flags" >&5
+echo "configure:1607: checking for platform specific thread flags" >&5
   
   for i in threads mt pthread pthreads mthreads Kthread kthread invalid_last_entry; do
     CXXFLAGS="$CXXFLAGSG -$i"
@@ -1590,10 +1639,10 @@ echo "configure:1558: checking for platform specific thread flags" >&5
 
     
   echo $ac_n "checking for platform specific multi-threading defines""... $ac_c" 1>&6
-echo "configure:1594: checking for platform specific multi-threading defines" >&5
+echo "configure:1643: checking for platform specific multi-threading defines" >&5
   
   cat > conftest.$ac_ext <<EOF
-#line 1597 "configure"
+#line 1646 "configure"
 #include "confdefs.h"
 
 #if !defined (_REENTRANT) && !defined (_THREAD_SAFE)
@@ -1607,7 +1656,7 @@ int main() {
    
 ; return 0; }
 EOF
-if { (eval echo configure:1611: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1660: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	echo "$ac_t"""not necessary"" 1>&6
@@ -1659,7 +1708,7 @@ fi
 
 if test "$withmultithreading" != no ; then
   echo $ac_n "checking for ACE""... $ac_c" 1>&6
-echo "configure:1663: checking for ACE" >&5
+echo "configure:1712: checking for ACE" >&5
   if test -d "$withmultithreading" ; then
     echo "$ac_t""found" 1>&6
   else
@@ -1679,7 +1728,7 @@ if test "${with_blas+set}" = set; then
   withval="$with_blas"
   if test "$withval" != no ; then
     echo $ac_n "checking for BLAS""... $ac_c" 1>&6
-echo "configure:1683: checking for BLAS" >&5
+echo "configure:1732: checking for BLAS" >&5
     if test -r "$withval" ; then
       echo "$ac_t""found" 1>&6
     else
@@ -1695,7 +1744,7 @@ EOF
   
 else
   echo $ac_n "checking for main in -lblas""... $ac_c" 1>&6
-echo "configure:1699: checking for main in -lblas" >&5
+echo "configure:1748: checking for main in -lblas" >&5
 ac_lib_var=`echo blas'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1703,14 +1752,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lblas  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1707 "configure"
+#line 1756 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:1714: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1763: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1742,7 +1791,7 @@ if test "${with_lapack+set}" = set; then
   withval="$with_lapack"
   if test "$withval" != no ; then
     echo $ac_n "checking for LAPACK""... $ac_c" 1>&6
-echo "configure:1746: checking for LAPACK" >&5
+echo "configure:1795: checking for LAPACK" >&5
     if test -r "$withval" ; then
       echo "$ac_t""found" 1>&6
     else
@@ -1758,7 +1807,7 @@ EOF
   
 else
   echo $ac_n "checking for dgels_ in -llapack""... $ac_c" 1>&6
-echo "configure:1762: checking for dgels_ in -llapack" >&5
+echo "configure:1811: checking for dgels_ in -llapack" >&5
 ac_lib_var=`echo lapack'_'dgels_ | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1766,7 +1815,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-llapack  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1770 "configure"
+#line 1819 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 #ifdef __cplusplus
@@ -1780,7 +1829,7 @@ int main() {
 dgels_()
 ; return 0; }
 EOF
-if { (eval echo configure:1784: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1833: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1847,7 +1896,7 @@ else
 fi
 
 echo $ac_n "checking for kdoc""... $ac_c" 1>&6
-echo "configure:1851: checking for kdoc" >&5
+echo "configure:1900: checking for kdoc" >&5
 if test "$kdocdir" != ${DEAL2_DIR}/contrib/kdoc/bin ; then
   if test -r $kdocdir/kdoc ; then
     echo "$ac_t""found" 1>&6
@@ -1883,7 +1932,7 @@ if test "$docxx" = to-be-determined ; then
   # Extract the first word of ""doc++"", so it can be a program name with args.
 set dummy "doc++"; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1887: checking for $ac_word" >&5
+echo "configure:1936: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_docxx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1917,7 +1966,7 @@ fi
 
 else
   echo $ac_n "checking for doc++""... $ac_c" 1>&6
-echo "configure:1921: checking for doc++" >&5
+echo "configure:1970: checking for doc++" >&5
   if test -x "$docxx" ; then
     echo "$ac_t""yes" 1>&6
   else
@@ -1932,7 +1981,7 @@ fi
 
 
   echo $ac_n "checking whether getrusage is properly declared""... $ac_c" 1>&6
-echo "configure:1936: checking whether getrusage is properly declared" >&5
+echo "configure:1985: checking whether getrusage is properly declared" >&5
   ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -1942,7 +1991,7 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
 
   cat > conftest.$ac_ext <<EOF
-#line 1946 "configure"
+#line 1995 "configure"
 #include "confdefs.h"
 
 #include <sys/resource.h>
@@ -1954,7 +2003,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:1958: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2007: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	echo "$ac_t"""yes"" 1>&6
@@ -1972,12 +2021,12 @@ fi
 rm -f conftest*
 
     echo $ac_n "checking whether isnan is declared with debug flags""... $ac_c" 1>&6
-echo "configure:1976: checking whether isnan is declared with debug flags" >&5
+echo "configure:2025: checking whether isnan is declared with debug flags" >&5
   
   CXXFLAGS=$CXXFLAGSG
   deal_II_isnan_flag=""
   cat > conftest.$ac_ext <<EOF
-#line 1981 "configure"
+#line 2030 "configure"
 #include "confdefs.h"
 
 #include <cmath>
@@ -1989,7 +2038,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:1993: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2042: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	echo "$ac_t"""yes"" 1>&6
@@ -2005,7 +2054,7 @@ rm -f conftest*
 
   if test "x$deal_II_isnan_flag" = "x" ; then
             cat > conftest.$ac_ext <<EOF
-#line 2009 "configure"
+#line 2058 "configure"
 #include "confdefs.h"
 
 #include <cmath>
@@ -2017,7 +2066,7 @@ int main() {
       
 ; return 0; }
 EOF
-if { (eval echo configure:2021: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2070: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	  echo "$ac_t"""yes"" 1>&6
@@ -2037,7 +2086,7 @@ rm -f conftest*
     for testflag in -D_ISOC99_SOURCE -D__EXTENSIONS__ ; do 
       CXXFLAGS="$CXXFLAGSG $testflag"
       cat > conftest.$ac_ext <<EOF
-#line 2041 "configure"
+#line 2090 "configure"
 #include "confdefs.h"
 
 #include <cmath>
@@ -2049,7 +2098,7 @@ int main() {
 	
 ; return 0; }
 EOF
-if { (eval echo configure:2053: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2102: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	  	  	  deal_II_isnan_flag="-DHAVE_ISNAN $testflag"
@@ -2062,7 +2111,7 @@ fi
 rm -f conftest*
 
                         cat > conftest.$ac_ext <<EOF
-#line 2066 "configure"
+#line 2115 "configure"
 #include "confdefs.h"
 
 #include <cmath>
@@ -2074,7 +2123,7 @@ int main() {
 	
 ; return 0; }
 EOF
-if { (eval echo configure:2078: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2127: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	  	  	  deal_II_isnan_flag="-DHAVE_UNDERSCORE_ISNAN $testflag"
@@ -2096,12 +2145,12 @@ rm -f conftest*
   fi
 
     echo $ac_n "checking whether isnan is declared with optimized flags""... $ac_c" 1>&6
-echo "configure:2100: checking whether isnan is declared with optimized flags" >&5
+echo "configure:2149: checking whether isnan is declared with optimized flags" >&5
   
   CXXFLAGS=$CXXFLAGSO
   deal_II_isnan_flag=""
   cat > conftest.$ac_ext <<EOF
-#line 2105 "configure"
+#line 2154 "configure"
 #include "confdefs.h"
 
 #include <cmath>
@@ -2113,7 +2162,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:2117: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2166: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	echo "$ac_t"""yes"" 1>&6
@@ -2129,7 +2178,7 @@ rm -f conftest*
 
   if test "x$deal_II_isnan_flag" = "x" ; then
             cat > conftest.$ac_ext <<EOF
-#line 2133 "configure"
+#line 2182 "configure"
 #include "confdefs.h"
 
 #include <cmath>
@@ -2141,7 +2190,7 @@ int main() {
       
 ; return 0; }
 EOF
-if { (eval echo configure:2145: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2194: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	  echo "$ac_t"""yes"" 1>&6
@@ -2161,7 +2210,7 @@ rm -f conftest*
     for testflag in -D_ISOC99_SOURCE -D__EXTENSIONS__ ; do 
       CXXFLAGS="$CXXFLAGSO $testflag"
       cat > conftest.$ac_ext <<EOF
-#line 2165 "configure"
+#line 2214 "configure"
 #include "confdefs.h"
 
 #include <cmath>
@@ -2173,7 +2222,7 @@ int main() {
 	
 ; return 0; }
 EOF
-if { (eval echo configure:2177: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2226: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	  	  	  deal_II_isnan_flag="-DHAVE_ISNAN $testflag"
@@ -2186,7 +2235,7 @@ fi
 rm -f conftest*
 
                         cat > conftest.$ac_ext <<EOF
-#line 2190 "configure"
+#line 2239 "configure"
 #include "confdefs.h"
 
 #include <cmath>
@@ -2198,7 +2247,7 @@ int main() {
 	
 ; return 0; }
 EOF
-if { (eval echo configure:2202: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2251: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
 	  	  	  deal_II_isnan_flag="-DHAVE_UNDERSCORE_ISNAN $testflag"
@@ -2226,16 +2275,16 @@ rm -f conftest*
 
 CXXFLAGS="$CXXFLAGSG"
 echo $ac_n "checking for consistency of CXXFLAGSG flags""... $ac_c" 1>&6
-echo "configure:2230: checking for consistency of CXXFLAGSG flags" >&5
+echo "configure:2279: checking for consistency of CXXFLAGSG flags" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2232 "configure"
+#line 2281 "configure"
 #include "confdefs.h"
 
 int main() {
 ;
 ; return 0; }
 EOF
-if { (eval echo configure:2239: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2288: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
     echo "$ac_t""yes" 1>&6
@@ -2253,16 +2302,16 @@ rm -f conftest*
 
 CXXFLAGS="$CXXFLAGSO"
 echo $ac_n "checking for consistency of CXXFLAGSO flags""... $ac_c" 1>&6
-echo "configure:2257: checking for consistency of CXXFLAGSO flags" >&5
+echo "configure:2306: checking for consistency of CXXFLAGSO flags" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2259 "configure"
+#line 2308 "configure"
 #include "confdefs.h"
 
 int main() {
 ;
 ; return 0; }
 EOF
-if { (eval echo configure:2266: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2315: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
     echo "$ac_t""yes" 1>&6
diff --git a/deal.II/configure.in b/deal.II/configure.in
index f8fe015596..0c90bb9e77 100644
--- a/deal.II/configure.in
+++ b/deal.II/configure.in
@@ -300,7 +300,8 @@ else
   CXXFLAGSG="-g $CXXFLAGSG"
 fi
 
-
+dnl See whether we have to declare lrand48 ourselves with -ansi
+DEAL_II_HAVE_LRAND48_DECLARED
 
 dnl On some systems (well, DEC Alphas are the only ones we know of),
 dnl gcc2.95 throws the hands in the air if it sees one of the AssertThrow
diff --git a/deal.II/deal.II/source/dofs/dof_renumbering.cc b/deal.II/deal.II/source/dofs/dof_renumbering.cc
index ae70b83041..f97530e11d 100644
--- a/deal.II/deal.II/source/dofs/dof_renumbering.cc
+++ b/deal.II/deal.II/source/dofs/dof_renumbering.cc
@@ -36,6 +36,17 @@ using namespace std;
 #endif
 
 
+// for whatever reason, the random_shuffle function used below needs
+// lrand48 to be declared when using -ansi as compiler flag (rather
+// than do so itself). however, inclusion of <cstdlib> or <stdlib.h>
+// does not help, so we declare that function ourselves. Since this
+// holds only for some compiler versions, do so conditionally on a
+// ./configure-time test
+#ifdef DEAL_II_DECLARE_LRAND48
+extern "C" long int lrand48 (void);
+#endif
+
+
 template <int dim>
 void DoFRenumbering::Cuthill_McKee (DoFHandler<dim>                 &dof_handler,
 				    const bool                       reversed_numbering,
-- 
2.39.5