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To: andreas@knobel.gun.de (Andreas Klemm)
Cc: asami@cs.berkeley.edu (Satoshi Asami), jkh@FreeBSD.org, ports@FreeBSD.org,
        hackers@FreeBSD.org
Subject: Re: Another Pentium gcc patch, -D__FreeBSD__=2 -Dbsd4_4
In-Reply-To: andreas@knobel.gun.de's message of 31 Jan 1996 11:35:52 PST
Date: Wed, 31 Jan 1996 13:38:44 -0800
From: Paul Traina <pst@cisco.com>
Sender: owner-ports@FreeBSD.org
Precedence: bulk

I don't think our current gcc defines bsd4_4, I'm certain it shouldn't. :-)
There's a well defined way to find out what version of the OS you're running
under.

#ifdef _HAVE_PARAM_H
#include <sys/param.h>
#endif

#if defined(BSD) && (BSD >= datecode)
...
#endif

This gives us much finer grained control.

The other change (__FreeBSD__=2) is absolutely positively correct.


> *** gcc-2.7.2/config/i386/freebsd.h.orig	Wed Jan 31 20:16:50 1996
> --- gcc-2.7.2/config/i386/freebsd.h	Wed Jan 31 20:17:43 1996
> ***************
> *** 35,41 ****
>   #include "i386/perform.h"
>   
>   #undef CPP_PREDEFINES
> ! #define CPP_PREDEFINES "-Dunix -Di386 -D__FreeBSD__ -D__386BSD__ -Asystem(unix) -Asystem(FreeBSD) -Acpu(i386) -Amachine(i386)"
>   
>   /* Like the default, except no -lg.  */
>   #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
> --- 35,41 ----
>   #include "i386/perform.h"
>   
>   #undef CPP_PREDEFINES
> ! #define CPP_PREDEFINES "-Dunix -Di386 -Dbsd4_4 -D__FreeBSD__=2 -D__386BSD__ -Asystem(unix) -Asystem(FreeBSD) -Acpu(i386) -Amachine(i386)"
>   
>   /* Like the default, except no -lg.  */
>   #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"