1dnl 2dnl Id 3dnl 4 5dnl 6dnl Test for __attribute__ 7dnl 8 9AC_DEFUN([AC_C___ATTRIBUTE__], [ 10AC_MSG_CHECKING(for __attribute__) 11AC_CACHE_VAL(ac_cv___attribute__, [ 12AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> 13static void foo(void) __attribute__ ((noreturn)); 14 15static void 16foo(void) 17{ 18 exit(1); 19} 20]])], 21[ac_cv___attribute__=yes], 22[ac_cv___attribute__=no])]) 23if test "$ac_cv___attribute__" = "yes"; then 24 AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__]) 25fi 26AC_MSG_RESULT($ac_cv___attribute__) 27]) 28 29