mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-12 05:56:28 +00:00
19 lines
588 B
Plaintext
19 lines
588 B
Plaintext
#
|
|
# This function determins if the 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++])
|
|
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++])
|
|
])
|
|
AC_SUBST(HUGE_VAL_SANITY,$ac_cv_huge_val_sanity)
|
|
])
|