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On Mon, 29 Nov 2004, Hubert Feyrer wrote:

> On Mon, 29 Nov 2004, Jim Wise wrote:
>> Any suggested improvements before I do so?
>
> Add a command line switch? It's the unix way of altering command behaviour...

Eh?  From $PATH to $EDITOR to $TERM, lot's of programs alter their 
behavior based on environment variables.

More specifically, I'm somewhat hesitant to use a flag in this case.  

My main concern is that this will be most often used by programs 
exec'ing cpp, and not all of them will be smart about allowing arguments 
to be part of ${CPP}, so an environment variable provides a saner way to 
modify cpp's behavior when called from an already-existing binary or 
script.

There's also the concern that if users decide to use a non-basesrc cpp 
(as _many_ users do via pkgsrc/lang/gcc34), a new command line option 
will cause cpp to fail outright, while a new environment variable will 
not.

That's why I chose the route I did, anyway...

- -- 
				Jim Wise
				jwise@draga.com
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