how to use -f[no-]color-diagnostics clang option with ports

[Max Brazhnikov]

On Thu, 21 Feb 2013 12:49:30 +0000 Anton Shterenlikht wrote:
> clang colours corrupt script() output, e.g.:
> 
> #warning This file includes at least one deprecated or antiquated header. \
> ^[[0;1;32m ^
> ^[[0m1 warning generated.
> ^[[31m^[[1mLinking CXX executable ../../../bin/pvbatch
> ^[[0m[ 91%] Built target pvbatch-real
> 
> Can I use something like this
> 
>  CFLAGS+= -fno-color-diagnostics
>  CXXFLAGS+= -fno-color-diagnostics
> 
> to suppress colour?

CMAKE_ARGS+=	-DCMAKE_COLOR_MAKEFILE=off

Max