Make sure we save CXXFLAGS before setting it as pedantic and regenerate
configure.
Fixes PR6388.
Patch by Yann Droneaud!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97548 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/autoconf/m4/huge_val.m4 b/autoconf/m4/huge_val.m4
index fd94c11..5fffbfc 100644
--- a/autoconf/m4/huge_val.m4
+++ b/autoconf/m4/huge_val.m4
@@ -5,6 +5,7 @@
AC_DEFUN([AC_HUGE_VAL_CHECK],[
AC_CACHE_CHECK([for HUGE_VAL sanity], [ac_cv_huge_val_sanity],[
AC_LANG_PUSH([C++])
+ ac_save_CXXFLAGS=$CXXFLAGS
CXXFLAGS=-pedantic
AC_RUN_IFELSE(
AC_LANG_PROGRAM(
@@ -12,6 +13,7 @@
[double x = HUGE_VAL; return x != x; ]),
[ac_cv_huge_val_sanity=yes],[ac_cv_huge_val_sanity=no],
[ac_cv_huge_val_sanity=yes])
+ CXXFLAGS=$ac_save_CXXFLAGS
AC_LANG_POP([C++])
])
AC_SUBST(HUGE_VAL_SANITY,$ac_cv_huge_val_sanity)
diff --git a/configure b/configure
index 62b8fc9..b3f1603 100755
--- a/configure
+++ b/configure
@@ -16544,6 +16544,7 @@
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+ ac_save_CXXFLAGS=$CXXFLAGS
CXXFLAGS=-pedantic
if test "$cross_compiling" = yes; then
ac_cv_huge_val_sanity=yes
@@ -16596,6 +16597,7 @@
fi
+ CXXFLAGS=$ac_save_CXXFLAGS
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'