Fix CXXFLAGS for huge_val.m4.

[oota-llvm.git] / autoconf / m4 / huge_val.m4

diff --git a/autoconf/m4/huge_val.m4 b/autoconf/m4/huge_val.m4
index 7ef9dcae6943081bf4946fd96ee1db7820794bc7..9dc76f22350cbb5b2296c7b9487998d333211ec9 100644 (file)
--- a/autoconf/m4/huge_val.m4
+++ b/autoconf/m4/huge_val.m4
@@ -6,7 +6,7 @@ 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=$CXXFLAGS
-    CXXFLAGS+=" -pedantic"
+    CXXFLAGS="$CXXFLAGS -pedantic"
     AC_RUN_IFELSE(
       AC_LANG_PROGRAM(
         [#include <math.h>],