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Date: Wed, 3 May 95 09:44:21 EDT
From: dayton@sci.brooklyn.cuny.edu (Dayton Clark)
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To: joerg_wunsch@uriah.heep.sax.de
Cc: rpt@miles.sso.loral.com, hackers@FreeBSD.org
In-Reply-To: <199505030617.IAA18293@uriah.heep.sax.de> (message from J Wunsch on Wed, 3 May 1995 08:17:40 +0200 (MET DST))
Subject: Re: GNU cpp bug with pthreads
Sender: hackers-owner@FreeBSD.org
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<.> From: J Wunsch <j@uriah.heep.sax.de>
<.> Date: Wed, 3 May 1995 08:17:40 +0200 (MET DST)
<.> Cc: hackers@FreeBSD.org
<.> Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
<.> X-Phone: +49-351-2012 669
<.> Mime-Version: 1.0
<.> Content-Type: text/plain; charset=ISO-8859-1
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<.> Precedence: bulk
<.> 
<.> As Richard Toren wrote:
<.> > 
<.> > cpp, when expanding the concatenate operator '##' seems to append a 
<.> > couple (3) blanks after the substitution. Here is a piece of pthreads and 
<.> > an abbreviated command line to test. Line 8 is the one munged up.
<.> 
<.> I'm not sure if it's a bug or a feature, nor does reading the `bible'
<.> enlighten me more.
<.> 
<.> > #ifdef __STDC__
<.> 
<.> Note: this should be ``#if __STDC__'' anyway.  Some preprocessors do
<.> define this macro to 0 when running in `traditional' mode.  ANSI says
<.> it is ``the constant 1'' in a standard-conforming environment.
<.> 
<.> > #define SYSCALL(x)                  \
<.> >     .globl _machdep_sys_##x;        \
<.> >                                     \
<.> > _machdep_sys_##x:;                  \
<.> >                                     \
<.> >     movl $(SYS_##x), %eax;          \
<.> 
<.> This works:
<.> 
<.> #define SYSCALL(x)                  \
<.>     .globl _machdep_sys_##x##;      \
<.>                                     \
<.> _machdep_sys_##x##:;                \
<.>                                     \
<.>     movl $(SYS_##x##), %eax;        \
<.> 
<.> -- 
<.> cheers, J"org
<.> 
<.> joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/
<.> Never trust an operating system you don't have sources for. ;-)
<.> 

I have a set of patches to pthreads 1.60beta that get it to work on
Freebsd2.0.  I can make it available if someone will tell me where to
place them.  They fix this problem and a couple of others.

dayton

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| Dayton Clark              |
| CIS Department            |
| Brooklyn College/CUNY     |
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