Add libroken as its own library
[openafs.git] / src / cf / c-attribute.m4
1 dnl
2 dnl $Id$
3 dnl
4
5 dnl
6 dnl Test for __attribute__
7 dnl
8
9 AC_DEFUN([OPENAFS_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));
14
15 static void
16 foo(void)
17 {
18   exit(1);
19 }
20 ]])],
21 [ac_cv___attribute__=yes],
22 [ac_cv___attribute__=no])])
23 if test "$ac_cv___attribute__" = "yes"; then
24   AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__])
25 fi
26 AC_MSG_RESULT($ac_cv___attribute__)
27 ])