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Commit 3c521e06 authored by Olaf Hering's avatar Olaf Hering Committed by Sam Ravnborg
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[PATCH] kbuild: add -Wundef to global CFLAGS 



A recent change to the aic scsi driver removed two defines to detect
endianness. cpp handles undefined strings as 0. As a result, the test turned
into #if 0 == 0 and the wrong code was selected.
Adding -Wundef to global CFLAGS will catch such errors.

Signed-off-by: default avatarOlaf Hering <olh@suse.de>
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent ce454d4d

Makefile

+2 −2
Original line number Diff line number Diff line
@@ -203,7 +203,7 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 


HOSTCC  	= gcc

HOSTCXX  	= g++

HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer

HOSTCFLAGS	= -Wall -Wundef -Wstrict-prototypes -O2 -fomit-frame-pointer

HOSTCXXFLAGS	= -O2



# 	Decide whether to build built-in, modular, or both.
@@ -348,7 +348,7 @@ LINUXINCLUDE := -Iinclude \ 


CPPFLAGS        := -D__KERNEL__ $(LINUXINCLUDE)



CFLAGS 		:= -Wall -Wstrict-prototypes -Wno-trigraphs \

CFLAGS 		:= -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \

	  	   -fno-strict-aliasing -fno-common \

		   -ffreestanding

AFLAGS		:= -D__ASSEMBLY__