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From: moraes@cs.toronto.edu (Mark Moraes)
Newsgroups: comp.sys.sgi
Subject: Re: Black Magic: __EXTENSIONS__
Message-ID: <90Oct26.182639edt.1347@smoke.cs.toronto.edu>
Date: 26 Oct 90 22:26:53 GMT
References: <amoss.656923801@shum>
Organization: Department of Computer Science, University of Toronto
Lines: 7

It would appear that #ifdef __EXTENSIONS__ encloses all non-ANSI stuff
in the header files.  Presumably, if __EXTENSIONS__ were undefined,
the SGI header files would strictly conform to the ANSI namespace.  I
can't find a way to turn off __EXTENSIONS__, short of putting undef's
in my code.  [gcc will turn it off with -ansi, which I hope is correct]
Of course, lots of things stop working once you turn off
__EXTENSIONS__.