[U-Boot] [PATCH] dts/Makefile: Turn off system-/gcc-specific predefined macros

[Mike Frysinger]

On Friday 13 July 2012 09:03:40 Horst Kronstorfer wrote:
> Add '-undef' to DTS_CPPFLAGS to avoid unwanted expansion of dts content
> that matches system-specific or gcc-specific predefined macros.
> 
> Example: A number of PowerPC related *.dts files in the kernel define a
> property named 'linux,network-index' which (w/o '-undef') is expanded to
> '1,network-index' by the preprocessor because of '#define linux 1.'

i think you should use -ansi instead.  that's what we use in other places for 
the same reason.
-mike
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