blob: 0c5afb3ea56a533de428b0df977c93c7b8053438 [file] [log] [blame]
AC_DEFUN([AX_C___ATTRIBUTE__], [
AC_MSG_CHECKING(for __attribute__)
AC_CACHE_VAL(ac_cv___attribute__, [
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
static void foo(void) __attribute__ ((unused));
void foo(void) { exit(1); }]], [[]])],[ac_cv___attribute__=yes],[ac_cv___attribute__=no
])])
if test "$ac_cv___attribute__" = "yes"; then
AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__])
fi
AC_MSG_RESULT($ac_cv___attribute__)
])