From:	Erik Max Francis <max AT alcyone DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: dos/unix defines
Date:	Thu, 24 Apr 1997 09:52:54 -0700
Organization:	Alcyone Systems
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To:	djgpp AT delorie DOT com
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Eli Zaretskii wrote:

> There is no general way to do that.  One solution which I find to work
> reasonably well is to test for COMSPEC, like so:
> 
>         ifdef COMSPEC
>         ... DOS stuff ...
>         else
>         ... Unix stuff ...
>         endif

I use an even simpler method, which is guaranteed to work.  I simply
define a macro for whichever platform is appropriate (MSDOS, LINUX,
WINDOWS, MACINTOSH, SUNOS, etc.) and give it to the makefile/project.
Much easier that way, and it can (obviously) be generalized to any
platform/compiler/runtime combination, because you're doing the work of
making the #defines.

-- 
       Erik Max Francis, &tSftDotIotE / email / max AT alcyone DOT com
                     Alcyone Systems /   web / http://www.alcyone.com/max/
San Jose, California, United States /  icbm / 37 20 07 N  121 53 38 W
                                   \
                      "The future / is right there."
                                 / Bill Moyers

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