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From: Richard Stallman <rms@gnu.org>
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Subject: Re: alternate makefile variable constructs
Date: Wed, 26 Mar 2003 22:30:00 -0500
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    that is, instead of using #define, use actual makefile variables.

I gather that you can't solve the whole problem with that approach.

      in any case, cpp programs that insert spaces around "." lose
    for these instances:

Our approach to this in the past has been to use a cpp that doesn't
insert spaces.  Can you get GNU cpp to run, and use that?