enlightenment/m4/ac_attribute.m4

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AC_DEFUN([AC_C___ATTRIBUTE__],
[
AC_MSG_CHECKING(for __attribute__)
AC_CACHE_VAL(ac_cv___attribute__, [
AC_TRY_COMPILE([#include <stdlib.h>],
[int func(int x); int foo(int x __attribute__ ((unused))) { exit(1); }],
ac_cv___attribute__=yes, ac_cv___attribute__=no)])
if test "$ac_cv___attribute__" = "yes"; then
AC_DEFINE(HAVE___ATTRIBUTE__, 1, [Define to 1 if your compiler has __attribute__])
fi
AC_MSG_RESULT($ac_cv___attribute__)
])