diff options
Diffstat (limited to 'cf/c-attribute.m4')
| -rw-r--r-- | cf/c-attribute.m4 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/cf/c-attribute.m4 b/cf/c-attribute.m4 new file mode 100644 index 0000000000000..1025538f66f71 --- /dev/null +++ b/cf/c-attribute.m4 @@ -0,0 +1,28 @@ +dnl +dnl $Id: c-attribute.m4 14166 2004-08-26 12:35:42Z joda $ +dnl + +dnl +dnl Test for __attribute__ +dnl + +AC_DEFUN([AC_C___ATTRIBUTE__], [ +AC_MSG_CHECKING(for __attribute__) +AC_CACHE_VAL(ac_cv___attribute__, [ +AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> +static void foo(void) __attribute__ ((noreturn)); + +static 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__) +]) + |