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Message-ID: <4828AEEF.1060800@iki.fi>
Date: Mon, 12 May 2008 23:56:15 +0300
From: Andris Pavenis <andris DOT pavenis AT iki DOT fi>
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To: djgpp-workers AT delorie DOT com
Subject: Re: Probably a bug in gcc 4.3.0
References: <200805111840 DOT 20870 DOT juan DOT guerrero AT gmx DOT de>
In-Reply-To: <200805111840.20870.juan.guerrero@gmx.de>
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Reply-To: djgpp-workers AT delorie DOT com

Juan Manuel Guerrero wrote:
> There is probably a bug in the gcc430b.zip file.  I have not tried to build the
> binaries from the sources so I am not sure if it is only an error produced during
> the packing of the zip file or if the build process of gcc 4.3.0 is brocken.
> 
> The following code always fails if compiled with gcc 4.3.0:
> 
> #define TEST_LIBSUPP  1
> #if TEST_LIBSUPP
> # if (__DJGPP__  == 2) && (__DJGPP_MINOR__ < 4)
> #  include <libsupp.h>
> # else
> #  include "../include/libsupp.h"
> # endif
> #else
> # include <stdio.h>
> #endif
> #include <float.h>
> #include <limits.h>
> #if (__DJGPP__  == 2) && (__DJGPP_MINOR__ >= 4)
> # include <stdint.h>
> #endif
> [snip]

The safe way is to include sys/version.h directly (it is no more
included automatically):

#include <sys/version.h>

I was never happy with the old solution, but it was best I could then figure
out to get __DJGPP*__ macros in without including anything directly.

With GCC-4.3.0 I have seen situations when the old solution does not find
sys/version.h at all (should not happen with normal use of it though).

Andris

PS. You may see the predefined macros by 'gcc -E -dD -x language /dev/null',
where language is either c or c++.