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ctemplate/m4/ac_have_attribute.m4
csilvers f0a3fceb99 Sat Jun 9 22:34:52 2007 Google Inc. <opensource@google.com>
* ctemplate: version 0.6 release
	* Use computed includes for hash_map/set: easier config (csilvers)
	* Added all used .m4 templates to the distribution (csilvers)
	* Beefed-up and revamped modifier code (csilvers)
	* New modifiers for url-escaping, attribute-cleansing, etc (ribrdb)
	* Annotations now include modifier information (csilvers)
	* Support embedded NULs in template names and values (csilvers)
2007-06-11 19:33:28 +00:00

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AC_DEFUN([AX_C___ATTRIBUTE__], [
AC_MSG_CHECKING(for __attribute__)
AC_CACHE_VAL(ac_cv___attribute__, [
AC_TRY_COMPILE(
[#include <stdlib.h>
static void foo(void) __attribute__ ((unused));
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__)
])