3.5/00_all_0003-linux-stddef.h-export-offsetof-to-userspace.patch


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From 5d4e7d8e7e1655b56185b6fba36dc55445d5bb6f Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Fri, 2 Jan 2009 02:34:03 -0500
Subject: [PATCH] linux/stddef.h: export offsetof() to userspace

Some userspace headers (like fuse.h) utilize the offsetof() macro.  Some
userspace packages (like lkcd) expect linux/stddef.h to provide this as
well.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 include/linux/stddef.h |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/linux/stddef.h b/include/linux/stddef.h
index 1747b67..f69354b 100644
--- a/include/linux/stddef.h
+++ b/include/linux/stddef.h
@@ -16,9 +16,12 @@ enum {
 #undef offsetof
 #ifdef __compiler_offsetof
 #define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
-#else
-#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
 #endif
 #endif /* __KERNEL__ */
 
+#include <stddef.h> /* newer gcc includes this */
+#ifndef offsetof
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+#endif
+
 #endif
-- 
1.7.9.7