dnl dnl $Id: c-attribute.m4,v 1.5 2005/03/05 00:36:07 dasenbro Exp $ dnl dnl dnl Test for __attribute__ dnl AC_DEFUN([CMU_C___ATTRIBUTE__], [ AC_MSG_CHECKING(for __attribute__) AC_CACHE_VAL(ac_cv___attribute__, [ AC_TRY_COMPILE([ #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__) ])