Update ac_attribute macro and remove __UNUSED__ declaration from eina.

SVN revision: 38179
devs/princeamd/enlightenment-0.17-elive
Cedric BAIL 14 years ago
parent c4e9884e62
commit ec0219e7db
  1. 52
      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
])

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