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| author | Darren Salt <linux@youmustbejoking.demon.co.uk> | 2008-05-03 14:34:45 +0100 |
|---|---|---|
| committer | Darren Salt <linux@youmustbejoking.demon.co.uk> | 2008-05-03 14:34:45 +0100 |
| commit | 90bb53f8c9b7ca3db6841a5005af791b93782d96 (patch) | |
| tree | dfb47862d7bb0ada90ce2bbc32a781f24ed3774a /m4 | |
| parent | 8d953c5c5cac93671c779cbf9176c6115e7294fa (diff) | |
| download | xine-lib-90bb53f8c9b7ca3db6841a5005af791b93782d96.tar.gz xine-lib-90bb53f8c9b7ca3db6841a5005af791b93782d96.tar.bz2 | |
Add support for "deprecated" attribute.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/attributes.m4 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/m4/attributes.m4 b/m4/attributes.m4 index 55f34c9f7..a74280696 100644 --- a/m4/attributes.m4 +++ b/m4/attributes.m4 @@ -322,3 +322,26 @@ AC_DEFUN([CC_ATTRIBUTE_ALIGNED], [ [Define the highest alignment supported]) fi ]) + +AC_DEFUN([CC_ATTRIBUTE_DEPRECATED], [ + AC_REQUIRE([CC_CHECK_WERROR]) + ac_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $cc_cv_werror" + AC_CACHE_CHECK([if compiler supports __attribute__((deprecated))], + [cc_cv_attribute_alias], + [AC_COMPILE_IFELSE([ + void some_function(void) __attribute__((deprecated)); + ], + [cc_cv_attribute_deprecated=yes], + [cc_cv_attribute_deprecated=no]) + ]) + CFLAGS="$ac_save_CFLAGS" + + if test "x$cc_cv_attribute_deprecated" = "xyes"; then + AC_DEFINE([SUPPORT_ATTRIBUTE_DEPRECATED], 1, [Define this if the compiler supports the deprecated attribute]) + $1 + else + true + $2 + fi +]) |