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authorCedric BAIL <cedric.bail@free.fr>2008-12-17 13:03:00 +0000
committerCedric BAIL <cedric.bail@free.fr>2008-12-17 13:03:00 +0000
commitec0219e7db8389170af1740c1b13ee514f998c31 (patch)
treed977c269e0659525bd3be7ebe80f044692e4d6e5 /m4
parentAdding missing Name entry in efreet_menu. (diff)
downloadenlightenment-ec0219e7db8389170af1740c1b13ee514f998c31.tar.gz
Update ac_attribute macro and remove __UNUSED__ declaration from eina.
SVN revision: 38179
Diffstat (limited to 'm4')
-rw-r--r--m4/ac_attribute.m452
1 files changed, 42 insertions, 10 deletions
diff --git a/m4/ac_attribute.m4 b/m4/ac_attribute.m4
index 46c1a4229..34bb4dbf2 100644
--- a/m4/ac_attribute.m4
+++ b/m4/ac_attribute.m4
@@ -1,14 +1,46 @@
+dnl Copyright (C) 2004-2008 Kim Woelders
+dnl Copyright (C) 2008 Vincent Torri <vtorri at univ-evry dot fr>
+dnl That code is public domain and can be freely used or copied.
+dnl Originally snatched from somewhere...
+
+dnl Macro for checking if the compiler supports __atribute__
+
+dnl Usage: AC_C___ATTRIBUTE__
+dnl call AC_DEFINE for HAVE___ATTRIBUTE__ and __UNUSED__
+dnl if the compiler supports __attribute__, HAVE___ATTRIBUTE__ is
+dnl defined to 1 and __UNUSED__ is defined to __attribute__((unused))
+dnl otherwise, HAVE___ATTRIBUTE__ is not defined and __UNUSED__ is
+dnl defined to nothing.
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__)
-])
+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"]
+ )]
+)
+
+AC_MSG_RESULT($ac_cv___attribute__)
+
+if test "x${ac_cv___attribute__}" = "xyes" ; then
+ AC_DEFINE([HAVE___ATTRIBUTE__], [1], [Define to 1 if your compiler has __attribute__])
+ AC_DEFINE([__UNUSED__], [__attribute__((unused))], [Macro declaring a function argument to be unused])
+ else
+ AC_DEFINE([__UNUSED__], [], [Macro declaring a function argument to be unused])
+fi
+
+])