#
-# 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)
])