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update ac_attribute.m4 

SVN revision: 38582
This commit is contained in:
Vincent Torri 2009-01-14 08:37:03 +00:00
parent 849d65df62
commit 2b34377d37
1 changed files with 7 additions and 5 deletions
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12
legacy/embryo/m4/ac_attribute.m4
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@ -1,7 +1,9 @@
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 that check if the compiler supports __atribute__
dnl Macro for checking if the compiler supports __attribute__
dnl Usage: AC_C___ATTRIBUTE__
dnl call AC_DEFINE for HAVE___ATTRIBUTE__ and __UNUSED__
@ -19,14 +21,14 @@ 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"]
)]
@ -36,9 +38,9 @@ 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))], [Define to __attribute__((unused)) if your compiler has __attribute__])
AC_DEFINE([__UNUSED__], [__attribute__((unused))], [Macro declaring a function argument to be unused])
else
AC_DEFINE([__UNUSED__], [], [Define to nothing if your compiler does not support __attribute__])
AC_DEFINE([__UNUSED__], [], [Macro declaring a function argument to be unused])
fi
])