As part of distdir don't build vis.h for platforms that doesn't need it
[heimdal.git] / cf / c-attribute.m4
blob8ff6bd3e84db898eafe9e8b0c9f164f79da79624
1 dnl
2 dnl $Id$
3 dnl
5 dnl
6 dnl Test for __attribute__
7 dnl
9 AC_DEFUN([AC_C___ATTRIBUTE__], [
10 AC_MSG_CHECKING(for __attribute__)
11 AC_CACHE_VAL(ac_cv___attribute__, [
12 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
13 static void foo(void) __attribute__ ((noreturn));
15 static void
16 foo(void)
18   exit(1);
20 ]])],
21 [ac_cv___attribute__=yes],
22 [ac_cv___attribute__=no])])
23 if test "$ac_cv___attribute__" = "yes"; then
24   AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__])
26 AC_MSG_RESULT($ac_cv___attribute__)