From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Tue, 15 Mar 2016 23:27:28 +0000 (-0400)
Subject: basic/macros: clang 3.5 doesn't support alloc_size
X-Git-Tag: v230~259^2~2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=26e9e10b39fdf343dcb7e11b6cb4eecf11a45970;p=thirdparty%2Fsystemd.git

basic/macros: clang 3.5 doesn't support alloc_size

The attribute was removed in commit c047507 in the clang repository as it
was never properly implemented anyway. Avoid using the attribute with
clang because it generates a ton of annoying warnings.
---

diff --git a/src/basic/macro.h b/src/basic/macro.h
index c34441d75dc..279d3f3f083 100644
--- a/src/basic/macro.h
+++ b/src/basic/macro.h
@@ -26,7 +26,11 @@
 #include <sys/types.h>
 
 #define _printf_(a,b) __attribute__ ((format (printf, a, b)))
-#define _alloc_(...) __attribute__ ((alloc_size(__VA_ARGS__)))
+#ifdef __clang__
+#  define _alloc_(...)
+#else
+#  define _alloc_(...) __attribute__ ((alloc_size(__VA_ARGS__)))
+#endif
 #define _sentinel_ __attribute__ ((sentinel))
 #define _unused_ __attribute__ ((unused))
 #define _destructor_ __attribute__ ((destructor))