Mon, 16 Jun 2008 15:15:51 -0700 Google Inc. <opensource@google.com>
* open-vcdiff: initial release:
The open-vcdiff package provides an encoder and decoder for the VCDIFF format
described in RFC 3284 (http://www.ietf.org/rfc/rfc3284.txt).
git-svn-id: http://open-vcdiff.googlecode.com/svn/trunk@7 132ac840-3546-0410-a738-d3f8764196be
diff --git a/m4/ac_have_attribute.m4 b/m4/ac_have_attribute.m4
new file mode 100644
index 0000000..19f4021
--- /dev/null
+++ b/m4/ac_have_attribute.m4
@@ -0,0 +1,16 @@
+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__)
+])