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-rw-r--r--libraries/edje/m4/ac_attribute.m447
1 files changed, 0 insertions, 47 deletions
diff --git a/libraries/edje/m4/ac_attribute.m4 b/libraries/edje/m4/ac_attribute.m4
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index 23479a9..0000000
--- a/libraries/edje/m4/ac_attribute.m4
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1dnl Copyright (C) 2004-2008 Kim Woelders
2dnl Copyright (C) 2008 Vincent Torri <vtorri at univ-evry dot fr>
3dnl That code is public domain and can be freely used or copied.
4dnl Originally snatched from somewhere...
5
6dnl Macro for checking if the compiler supports __attribute__
7
8dnl Usage: AC_C___ATTRIBUTE__
9dnl call AC_DEFINE for HAVE___ATTRIBUTE__ and __UNUSED__
10dnl if the compiler supports __attribute__, HAVE___ATTRIBUTE__ is
11dnl defined to 1 and __UNUSED__ is defined to __attribute__((unused))
12dnl otherwise, HAVE___ATTRIBUTE__ is not defined and __UNUSED__ is
13dnl defined to nothing.
14
15AC_DEFUN([AC_C___ATTRIBUTE__],
16[
17
18AC_MSG_CHECKING([for __attribute__])
19
20AC_CACHE_VAL([ac_cv___attribute__],
21 [AC_TRY_COMPILE(
22 [
23#include <stdlib.h>
24
25int func(int x);
26int foo(int x __attribute__ ((unused)))
27{
28 exit(1);
29}
30 ],
31 [],
32 [ac_cv___attribute__="yes"],
33 [ac_cv___attribute__="no"]
34 )])
35
36AC_MSG_RESULT($ac_cv___attribute__)
37
38if test "x${ac_cv___attribute__}" = "xyes" ; then
39 AC_DEFINE([HAVE___ATTRIBUTE__], [1], [Define to 1 if your compiler has __attribute__])
40 AC_DEFINE([__UNUSED__], [__attribute__((unused))], [Macro declaring a function argument to be unused])
41 else
42 AC_DEFINE([__UNUSED__], [], [Macro declaring a function argument to be unused])
43fi
44
45])
46
47dnl End of ac_attribute.m4