From: kunst AT prl DOT philips DOT nl
Subject: Re: GO32 specific symbol ?
To: A8411GAC AT AWIUNI11 DOT EDVZ DOT UNIVIE DOT AC DOT AT (Matthias Burian)
Date: Wed, 13 Oct 1993 10:21:11 +0100 (MET)
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu (DJGPP users list)

Matthias Burian writes:

> I didn't find anything about this in the FAQ, so I'll post my question
> here:
> Is there any DJGPP specific symbol predefined for DJGCC ?
> I mean, if you use EMX/GCC you can include '#ifdef __EMX__' into your
> source, without giving '-D__EMX__' onto your command line, __EMX__ is
> predefined.
> Is there anything similar under DJGPP ?

If you use the '-v' switch (verbose), gcc displays all predefined symbols:
e.g. gcc -v -c test.c

================================================================================
Reading specs from c:/gcc/lib/specs
gcc version 2.4.1
 c:/gcc/bin/cpp.exe -lang-c -v -undef -D__GNUC__=2 -Dunix -Di386 -D__unix__ -D__
i386__ -D__unix -D__i386 -D__GO32__ -D__MSDOS__ -DGO32 -DMSDOS -noprecomp test.c
 C:\TMP/cc010299
GNU CPP version 2.4.1 (80386, BSD syntax)
 c:/gcc/bin/cc1.exe C:\TMP/cc010299 -quiet -dumpbase test.c -version -o C:\TMP/
cca10299
GNU C version 2.4.1 (80386, BSD syntax) compiled by GNU C version 2.4.1.
 c:/gcc/bin/as.exe -o test.o C:\TMP/cca10299
================================================================================

From the first line you can see that you can use
#ifdef GO32  or #ifdef __GO32__ for DJGPP-specific compiles.

 .^^^^^^^^           _____________________________________
 |      |          / Pieter Kunst (P.J.)                   \
 |  _  _|        /   Philips Research Laboratories,          \
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  | ,___|   /        e-mail: kunst AT prl DOT philips DOT nl             /
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