From 5efaaaac55cdcd76daecb98421a96cb2d7a25129 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Thu, 20 Jan 2005 16:07:42 -0800 Subject: [PATCH] Use -Wno-pointer-sign for gcc 4.0 Compiling an allyesconfig kernel straight with a gcc 4.0 snapshot gives nearly 10k new warnings like: warning: pointer targets in passing argument 5 of `cpuid' differ in signedness Since the sheer number of these warnings was too much even for the most determined kernel janitors (I actually asked ;-) and I don't think it's a very serious issue to have these mismatches I submitted an new option to gcc to disable it. It was incorporated in gcc mainline now. This patch makes the kernel compilation use it. There are still quite a lot of new warnings with 4.0 (mostly about uninitialized variables), but the compile log looks much nicer nnow. Signed-off-by: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Makefile b/Makefile index 46ed11f4a448..9a3262ecccb9 100644 --- a/Makefile +++ b/Makefile @@ -533,6 +533,9 @@ include $(srctree)/arch/$(ARCH)/Makefile # warn about C99 declaration after statement CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) +# disable pointer signedness warnings in gcc 4.0 +CFLAGS += $(call cc-option,-Wno-pointer-sign,) + # Default kernel image to build when no specific target is given. # KBUILD_IMAGE may be overruled on the commandline or # set in the environment -- cgit v1.2.3