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authorEric Christopher <echristo@apple.com>2010-03-02 05:06:54 +0000
committerEric Christopher <echristo@apple.com>2010-03-02 05:06:54 +0000
commitc77185038014298580d71daed6284b9a94b70f5b (patch)
tree1153e756ec11b6130900f7c22ff6c41d918c1e5a /autoconf
parent7b2c9e6a30530b6c4496f3a511f9d821ecb83b69 (diff)
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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
Diffstat (limited to 'autoconf')
-rw-r--r--autoconf/m4/huge_val.m42
1 files changed, 2 insertions, 0 deletions
diff --git a/autoconf/m4/huge_val.m4 b/autoconf/m4/huge_val.m4
index fd94c11c86..5fffbfc8d3 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=$CXXFLAGS
CXXFLAGS=-pedantic
AC_RUN_IFELSE(
AC_LANG_PROGRAM(
@@ -12,6 +13,7 @@ AC_DEFUN([AC_HUGE_VAL_CHECK],[
[double x = HUGE_VAL; return x != x; ]),
[ac_cv_huge_val_sanity=yes],[ac_cv_huge_val_sanity=no],
[ac_cv_huge_val_sanity=yes])
+ CXXFLAGS=$ac_save_CXXFLAGS
AC_LANG_POP([C++])
])
AC_SUBST(HUGE_VAL_SANITY,$ac_cv_huge_val_sanity)