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authorOlaf Hering <olh@suse.de>2005-07-21 21:02:09 +0200
committerSam Ravnborg <sam@mars.(none)>2005-07-21 21:45:47 +0000
commit3c521e06fad4b4b7fe4811fb8363d12cf49f40a2 (patch)
tree5904f3b98801b2c86f15abea327e4a9c5dbeffee
parentce454d4d7278b815dcee957653ce388146484f5f (diff)
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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: Olaf Hering <olh@suse.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
-rw-r--r--Makefile4
1 files changed, 2 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index 5185c917077..423397f0392 100644
--- a/Makefile
+++ b/Makefile
@@ -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__