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Diffstat (limited to 'm4/ac_attribute.m4')
-rw-r--r-- | m4/ac_attribute.m4 | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/m4/ac_attribute.m4 b/m4/ac_attribute.m4 deleted file mode 100644 index 23479a9..0000000 --- a/m4/ac_attribute.m4 +++ /dev/null @@ -1,47 +0,0 @@ -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 __attribute__ - -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"] - )]) - -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 - -]) - -dnl End of ac_attribute.m4 |