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dts/Makefile: Turn off some predefined macros

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Add '-ansi' to DTS_CPPFLAGS to avoid unwanted expansion of dts content
that matches some predefined macros.

Example: A number of PowerPC related *.dts files in the kernel define a
property named 'linux,network-index' which (w/o '-ansi') is expanded to
'1,network-index' by the preprocessor because of '#define linux 1.'

Signed-off-by: Horst Kronstorfer <hkronsto@frequentis.com>
This commit is contained in:
Horst Kronstorfer 2012-07-13 03:03:40 +00:00 • committed by Wolfgang Denk
parent 8fde2f3a95
commit b4f106be2d
1 changed files with 2 additions and 1 deletions
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3
dts/Makefile
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@ -36,7 +36,8 @@ $(error Your architecture does not have device tree support enabled. \
Please define CONFIG_ARCH_DEVICE_TREE))
# We preprocess the device tree file provide a useful define
DTS_CPPFLAGS := -DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\" \
DTS_CPPFLAGS := -ansi \
-DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\" \
-DBOARD_DTS=\"$(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts/$(DEVICE_TREE).dts\"
all: $(obj).depend $(LIB)