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

[Chris Rees]

On 22 Feb 2013 10:25, "Anton Shterenlikht" <mexas at bristol.ac.uk> wrote:
>
>         From makc at freebsd.org Thu Feb 21 13:47:30 2013
>         > 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
>
> I put this in /etc/make.conf:
>
> # grep COLOR /etc/make.conf
> CMAKE_ARGS+=    -DCMAKE_COLOR_MAKEFILE=off
>
> but building e.g. science/paravew in script(1),
> I still get corrupted output, e.g.
>
> In file included from /usr/include/c++/4.2/backward/strstream:51:
> ^[[1m/usr/include/c++/4.2/backward/backward_warning.h:32:2:
^[[0m^[[0;1;35mwarni
> ng: ^[[0m^[[1mThis file
>       includes at least one deprecated or antiquated header. Please
consider
>
> Or is this nothing to do with colour?
> Then how can I get rid of these special
> characters?
>

These look like clang output rather than CMake output.

Did you try putting -fno-color-diagnostics in CFLAGS, and CXXFLAGS?  The
clang manual indicates that this would help.

Chris