From: Stephen Warren swarren@nvidia.com
This brings U-Boot's cpp invocation into line with the way the Linux kernel invokes cpp on device trees. Consistency will be useful to ensure *.dts is portable between the two.
-undef also has the added advantage of not defining "linux", so DT property names such as "linux,keymap" don't get mangled.
Signed-off-by: Stephen Warren swarren@nvidia.com Acked-by: Simon Glass sjg@chromium.org --- dts/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/dts/Makefile b/dts/Makefile index 805d2cc..b125bd3 100644 --- a/dts/Makefile +++ b/dts/Makefile @@ -37,7 +37,7 @@ DTS_INCDIRS = $(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts DTS_INCDIRS += $(SRCTREE)/board/$(VENDOR)/dts DTS_INCDIRS += $(SRCTREE)/arch/$(ARCH)/dts
-DTS_CPPFLAGS := -x assembler-with-cpp \ +DTS_CPPFLAGS := -x assembler-with-cpp -undef -D__DTS__ \ -nostdinc $(addprefix -I,$(DTS_INCDIRS))
DTC_FLAGS := -R 4 -p 0x1000 \