X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=libstdc%2B%2B-v3%2Fconfigure;h=6e6e1996e62d57298deb7c65258918e21d809fb1;hp=9a6ec5256bbac0644a796cd0b55a14a6748b32b0;hb=857d9b7bdf139c12a8bf7483f712f59cf047c698;hpb=8965c2646dd063b1468e923de148bbcc90ae3a93

diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 9a6ec5256bb..6e6e1996e62 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -17947,6 +17947,106 @@ _ACEOF
   fi
 
 
+
+  echo "$as_me:$LINENO: checking for ISO C++200x standard layout type support" >&5
+echo $ECHO_N "checking for ISO C++200x standard layout type support... $ECHO_C" >&6
+  if test "${ac_standard_layout+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+
+
+  ac_ext=cc
+ac_cpp='$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
+
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-std=gnu++0x'
+
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+struct b
+                  {
+  		    bool t;
+
+		    // Need standard layout relaxation from POD
+		    private:
+  		    b& operator=(const b&);
+  		    b(const b&);
+		    };
+
+		    int main()
+		    {
+		      b tst1 = { false };
+		       return 0;
+		    }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&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 $ac_status); } &&
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_standard_layout=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_standard_layout=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  echo "$as_me:$LINENO: result: $ac_standard_layout" >&5
+echo "${ECHO_T}$ac_standard_layout" >&6
+  if test x"$ac_standard_layout" = x"yes"; then
+
+cat >>confdefs.h <<\_ACEOF
+#define _GLIBCXX_USE_STANDARD_LAYOUT 1
+_ACEOF
+
+  fi
+
+
 # No surprises, no surprises...
 
   echo "$as_me:$LINENO: checking for thread model used by GCC" >&5
@@ -17988,7 +18088,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   # Fake what AC_TRY_COMPILE does.  XXX Look at redoing this new-style.
     cat > conftest.$ac_ext << EOF
-#line 17991 "configure"
+#line 18091 "configure"
 int main()
 {
   // NB: _Atomic_word not necessarily int.