[U-Boot] [PATCH 04/32] include/linux/stddef.h: avoid 'warning: preprocessor token offsetof redefined'

Kim Phillips
2012-10-17T00:28:20Z

hack to avoid:

/opt/gcc-4.6.3-nolibc/powerpc-linux/bin/../lib/gcc/powerpc-linux/4.6.3/include/stddef.h:413:9: warning: preprocessor token offsetof redefined
u-boot/include/linux/stddef.h:20:9: this was the original definition

tried protecting with __KERNEL__, and #including compiler.h first.

Even tried include dir reordering to no avail:

+++ b/config.mk
@@ -194,7 +194,11 @@ OBJCFLAGS += --gap-fill=0xff
gccincdir := $(shell $(CC) -print-file-name=include)

CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
- -D__KERNEL__
+ -D__KERNEL__ \
+ -I $(gccincdir) \
+ -nostdinc
+
+# -isystem $(gccincdir) \

# Enable garbage collection of un-used sections for SPL
ifeq ($(CONFIG_SPL_BUILD),y)
@@ -227,8 +231,7 @@ CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
endif

CPPFLAGS += -I$(TOPDIR)/include
-CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
- -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
+CPPFLAGS += -fno-builtin -ffreestanding -pipe $(PLATFORM_CPPFLAGS)

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
---
include/linux/stddef.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/linux/stddef.h b/include/linux/stddef.h
index 81e34c2..c540f61 100644
--- a/include/linux/stddef.h
+++ b/include/linux/stddef.h
@@ -12,7 +12,9 @@
#include <linux/types.h>
#endif

+#ifndef __CHECKER__
#undef offsetof
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+#endif

#endif
--
1.7.12.3