colors from waf => crap in log files

[Achim Gratz]

Hal Murray writes:
> I assume the default is auto.
>
> How do I find out what that really does?

The usual thing to do is check if stdout goes to a terminal and color
that using escape sequences pulled from terminfo.  If the output goes
someplace else or the terminal doesn't support (enough) colors, don't
emit escape sequences.  If you play around a bit with the TERM variable
and piping / redirecting the output, you should see if waf is doing
this.


Regards,
Achim.
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