From:	michael DOT mauch AT gmx DOT de (Michael Mauch)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Info Zip unzip-5.32 does not compile with DJGPP/gcc-2.8.0
Date:	Mon, 06 Apr 1998 16:17:09 +0200
Organization:	Gerhard-Mercator-Universitaet -GH- Duisburg
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References:	<199804060440 DOT VAA02961 AT adit DOT ap DOT net>
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

On Sun, 5 Apr 1998 21:40:15 -0700 (PDT), Nate Eldredge <eldredge AT ap DOT net>
wrote:

> At 06:04  4/5/1998 +0200, Michael Mauch wrote:
> 
> >I don't know what the `-Asystem(unix)“ and so forth in the built-in
> >specs mean -- gcc.info does not seem to have a reference for it. Is it
> >something to be concerned about?
> 
> No, it isn't. It's a predefined preprocessor assertion. Look in the CPP (not
> GCC) manual and see the node "Assertions".

Thank you, no I found it. If I understand you right, we shouldn't rely
on the non-ANSI constructs `#system(unix)“, `#system(dos)“ and so forth
being defined, but rather test for the pure preprocessor definitions
`__MSDOS__“, `__unix“ and so on.

Regards...
		Michael

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