Forgot the part where we handle the ".llvm.eh.catch.all.value".

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

diff --git a/autoconf/m4/huge_val.m4 b/autoconf/m4/huge_val.m4
index 87f8d0450577206387a97527e21e8c28a72afedd..5fffbfc8d37c24fc6e16ea4c46e274481f864cf8 100644 (file)
--- a/autoconf/m4/huge_val.m4
+++ b/autoconf/m4/huge_val.m4
@@ -4,15 +4,17 @@
 #
 AC_DEFUN([AC_HUGE_VAL_CHECK],[
   AC_CACHE_CHECK([for HUGE_VAL sanity], [ac_cv_huge_val_sanity],[
-    AC_LANG_PUSH(C)
-    CPPFLAGS=-pedantic
+    AC_LANG_PUSH([C++])
+    ac_save_CXXFLAGS=$CXXFLAGS
+    CXXFLAGS=-pedantic
     AC_RUN_IFELSE(
       AC_LANG_PROGRAM(
         [#include <math.h>],
         [double x = HUGE_VAL; return x != x; ]),
       [ac_cv_huge_val_sanity=yes],[ac_cv_huge_val_sanity=no],
       [ac_cv_huge_val_sanity=yes])
-    AC_LANG_POP(C)
+    CXXFLAGS=$ac_save_CXXFLAGS
+    AC_LANG_POP([C++])
     ])
   AC_SUBST(HUGE_VAL_SANITY,$ac_cv_huge_val_sanity)
 ])