[U-Boot] [PATCH] config.mk: Add -Wundef to CFLAGS

In U-boot source, some '#if' directives evaluate undefined identifiers.

To find and fix them, this commit adds -Wundef to CFLAGS.

Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com --- config.mk | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config.mk b/config.mk index f71e145..7a92ae3 100644 --- a/config.mk +++ b/config.mk @@ -259,7 +259,7 @@ CPPFLAGS += -I$(TOPDIR)/include CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \ -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)

-CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes +CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wundef

ifdef BUILD_TAG CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'