[PATCH] x86_64: set -fno-strict-aliasing for early boot code

The boot decompressor is miscompiled by recent gcc 4.0s without this patch.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/x86_64/boot/compressed/Makefile

@@ -11,7 +11,7 @@ EXTRA_AFLAGS	:= -traditional -m32
 
 # cannot use EXTRA_CFLAGS because base CFLAGS contains -mkernel which conflicts with
 # -m32
-CFLAGS := -m32 -D__KERNEL__ -Iinclude -O2  
+CFLAGS := -m32 -D__KERNEL__ -Iinclude -O2  -fno-strict-aliasing
 LDFLAGS := -m elf_i386
 
 LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup_32 -m elf_i386