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From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: ifdef replacement for GNAT
Date: 1998/04/09
Message-ID: <dewar.892128219@merv>#1/1
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References: <352287EE.1CFB@tolstoy.mdc.com> <352B8208.41C6@tolstoy.mdc.com>
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Date: 1998-04-09T00:00:00+00:00
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John said

<<For those interested, gnatprep is a preprocessing utility included in
the GNAT distribution which will support #ifdef type conditional
compilations.  gnatprep produces an output file which forms the input to
the compiler.  It is not as transparent as the C preprocessor - See the
man page for details.
>>

I have no idea what "not as transparent as the C preprocessor" means, but
note that gnatprep, unlike the C preprocessor, understands Ada tokens and
will pass through arbitrary Ada text without difficulties, unlike the
C preprocessor which will choke on some constructs (such as attributes)
because they do not look like C tokens.