X-pop3-spooler:	POP3MAIL 2.1.0 b 4 980420 -bs-
Delivered-To:	pcg AT goof DOT com
X-Mailer:	exmh version 2.0.2 2/24/98
To:	pgcc-list AT Desk DOT nl
Subject:	pgcc/egcs 1.0.2 & 980502 - possible bug report.
Mime-Version:	1.0
Date:	Fri, 08 May 1998 16:21:32 +0200
From:	David Woodhouse <Dave AT imladris DOT demon DOT co DOT uk>
Message-Id:	<E0yXoxp-0007pJ-00@dwmw2.robinson.cam.ac.uk>
Sender:	Marc Lehmann <pcg AT goof DOT com>
Status:	RO
X-Status:	A
Lines:	31

Summary:

Compiling version 0.31b3 of xmame (http://drake.dit.upm.es/~mame/)
with -O3 will produce a binary which segfaults as soon as it's set up the 
audio. (tested on gauntlet if it matters)

With -O2, it all works.


The problem has been tracked to the "mame.c" file, and there's four versions 
of mame.o available for FTP from ftp://dwmw2.robinson.cam.ac.uk/pub/egcs-bug

mame.o.bad-O3-1.0.2		Compiled with pgcc-1.0.2, -O3
mame.o.bad-O3-980502		Compiled with pgcc-980502, -O3
mame.o.good-O2-1.0.2
mame.o.good-O2-980502		I'm sure you can work it out.

The compiled version of the application is also there:
xmame.linux-ok and xmame.linux-broken

You'll also find the command line used for gcc, and the output of "gcc -v" on 
each compiler.

Anything else I can provide?

----                              ----                              ----
David Woodhouse, Robinson College, CB3 9AN, England.   (+44) 0976 658355
    Dave AT imladris DOT demon DOT co DOT uk        http://www.imladris.demon.co.uk
	    finger pgp AT dwmw2 DOT robinson DOT cam DOT ac DOT uk for PGP key.

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