From 092bb3fc40bb0b188e87e2586192806348b9c140 Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@math.tamu.edu>
Date: Sat, 26 Apr 2008 00:11:57 +0000
Subject: [PATCH] Use -Wno-ignored-qualified when we hit gcc bug 36052

git-svn-id: https://svn.dealii.org/trunk@16012 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/aclocal.m4   | 47 ++++++++++++++++++++++++++
 deal.II/configure    | 80 ++++++++++++++++++++++++++++++++++++++++++++
 deal.II/configure.in |  3 +-
 deal.II/lac/Makefile |  2 +-
 4 files changed, 130 insertions(+), 2 deletions(-)

diff --git a/deal.II/aclocal.m4 b/deal.II/aclocal.m4
index cd65cec506..37a3a8ce1b 100644
--- a/deal.II/aclocal.m4
+++ b/deal.II/aclocal.m4
@@ -3883,6 +3883,53 @@ AC_DEFUN(DEAL_II_CHECK_EXPLICIT_CONSTRUCTOR_BUG, dnl
 
 
 
+dnl -------------------------------------------------------------
+dnl Check for GCC bug 36052, see
+dnl   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36052
+dnl 
+dnl Usage: DEAL_II_CHECK_TYPE_QUALIFIER_BUG
+dnl 
+dnl --------------------------------------------------------------
+AC_DEFUN(DEAL_II_CHECK_TYPE_QUALIFIER_BUG, dnl
+[
+  case "$GXX_VERSION" in
+    gcc*)
+      AC_MSG_CHECKING(for warning bug with type qualifiers)
+      AC_LANG(C++)
+      CXXFLAGS="$CXXFLAGSG -Werror"
+      AC_TRY_COMPILE(
+        [
+          struct S {
+              typedef double value_type;
+          };
+    
+          template <typename T> struct Traits {
+              typedef const typename T::value_type dereference_type;
+          };
+    
+          template <class BlockVectorType> struct ConstIterator {
+              typedef typename Traits<BlockVectorType>::dereference_type dereference_type;
+        
+              dereference_type operator * () const  { return 0; }
+          };
+    
+          template class ConstIterator<S>;
+        ],
+        [
+        ],
+        [
+          AC_MSG_RESULT(no)
+        ],
+        [
+          AC_MSG_RESULT(yes)
+          CXXFLAGSG="$CXXFLAGSG -Wno-ignored-qualifiers"
+        ])
+    ;;
+  esac
+])
+
+
+
 
 dnl -------------------------------------------------------------
 dnl In the gcc libstdc++ headers for std::complex, there is 
diff --git a/deal.II/configure b/deal.II/configure
index 529266de22..b1cdf5978b 100755
--- a/deal.II/configure
+++ b/deal.II/configure
@@ -7303,6 +7303,86 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
+  case "$GXX_VERSION" in
+    gcc*)
+      { echo "$as_me:$LINENO: checking for warning bug with type qualifiers" >&5
+echo $ECHO_N "checking for warning bug with type qualifiers... $ECHO_C" >&6; }
+      ac_ext=cpp
+ac_cpp='$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
+
+      CXXFLAGS="$CXXFLAGSG -Werror"
+      cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+          struct S {
+              typedef double value_type;
+          };
+
+          template <typename T> struct Traits {
+              typedef const typename T::value_type dereference_type;
+          };
+
+          template <class BlockVectorType> struct ConstIterator {
+              typedef typename Traits<BlockVectorType>::dereference_type dereference_type;
+
+              dereference_type operator * () const  { return 0; }
+          };
+
+          template class ConstIterator<S>;
+
+int
+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 "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+
+          { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+          { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+          CXXFLAGSG="$CXXFLAGSG -Wno-ignored-qualifiers"
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ;;
+  esac
+
+
   if test "x$GXX" = "xyes" ; then
     { echo "$as_me:$LINENO: checking for problem with -Wsynth and std::complex" >&5
 echo $ECHO_N "checking for problem with -Wsynth and std::complex... $ECHO_C" >&6; }
diff --git a/deal.II/configure.in b/deal.II/configure.in
index 3b4438ac37..e506b20e08 100644
--- a/deal.II/configure.in
+++ b/deal.II/configure.in
@@ -9,7 +9,7 @@ dnl    is stored.
 dnl
 dnl
 dnl Copyright: The deal.II authors
-dnl          1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+dnl          1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
 dnl
 
 
@@ -189,6 +189,7 @@ DEAL_II_CHECK_SFINAE_BUG
 DEAL_II_CHECK_TEMPL_OP_DISAMBIGUATION_BUG
 DEAL_II_CHECK_ARRAY_CONDITIONAL_DECAY_BUG
 DEAL_II_CHECK_EXPLICIT_CONSTRUCTOR_BUG
+DEAL_II_CHECK_TYPE_QUALIFIER_BUG
 DEAL_II_CHECK_WSYNTH_AND_STD_COMPLEX
 DEAL_II_HAVE_PRETTY_FUNCTION
 DEAL_II_HAVE_STD_ITERATOR
diff --git a/deal.II/lac/Makefile b/deal.II/lac/Makefile
index 6f97793f67..7153bc9f27 100644
--- a/deal.II/lac/Makefile
+++ b/deal.II/lac/Makefile
@@ -38,7 +38,7 @@ endif
 
 $(LIBDIR)/lac/%.g.$(OBJEXT) :
 	@echo "=====lac==============debug======$(MT)== $(<F)"
-	@$(CXX) $(CXXFLAGS.g) -c $< -o $@
+	@$(CXX) $(CXXFLAGS.g) -c $< -o $@ -save-temps
 $(LIBDIR)/lac/%.$(OBJEXT) :
 	@echo "=====lac==============optimized==$(MT)== $(<F)"
 	@$(CXX) $(CXXFLAGS.o) -c $< -o $@
-- 
2.39.5