Link with -rdynamic instead of -Wl,-export-dynamic.

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

diff --git a/autoconf/m4/huge_val.m4 b/autoconf/m4/huge_val.m4
index 87f8d0450577206387a97527e21e8c28a72afedd..d224d7cb64eb8ae319da6eda032afcb9a75f3535 100644 (file)
--- a/autoconf/m4/huge_val.m4
+++ b/autoconf/m4/huge_val.m4
@@ -1,18 +1,18 @@
 #
-# This function determins if the the HUGE_VAL macro is compilable with the 
+# This function determins if the HUGE_VAL macro is compilable with the 
 # -pedantic switch or not. XCode < 2.4.1 doesn't get it right.
 #
 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_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)
+    AC_LANG_PUSH([C++])
+    ac_save_CXXFLAGS=$CXXFLAGS
+    CXXFLAGS="$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])
+    CXXFLAGS=$ac_save_CXXFLAGS
+    AC_LANG_POP([C++])
     ])
   AC_SUBST(HUGE_VAL_SANITY,$ac_cv_huge_val_sanity)
 ])