Bugzilla Bug 54134

The media-libs/xvid-1.0.1 codec cores on amd64 (and probably on all 64bit
machines). 

Reproducible: Always
Steps to Reproduce:
1. emerge transcode and dvdrip  
2. rip a track from a dvd and try to encode it in xvid4 format.


Actual Results:  
A segmentation fault (you may need to copy the command line displayed in the 
error window of dvdrip to see the segfault). 

Expected Results:  
No segfault. 

tux xvid # emerge info 
Portage 2.0.50-r8 (default-amd64-2004.0, gcc-3.3.3, glibc-2.3.4.20040605-r0, 
2.6.5-gentoo-r1) 
================================================================= 
System uname: 2.6.5-gentoo-r1 x86_64 4 
Gentoo Base System version 1.4.16 
Autoconf: sys-devel/autoconf-2.59-r4 
Automake: sys-devel/automake-1.8.5 
ACCEPT_KEYWORDS="amd64 ~amd64" 
AUTOCLEAN="yes" 
CFLAGS="-O2" 
CHOST="x86_64-pc-linux-gnu" 
COMPILER="gcc3" 
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config
/usr/kde/3.2/share/config /usr/kde/3/share/config
/usr/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control" 
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" 
CXXFLAGS="-O2" 
DISTDIR="/usr/portage/distfiles" 
FEATURES="autoaddcvs ccache sandbox" 
GENTOO_MIRRORS="ftp://mirrors.sec.informatik.tu-darmstadt.de/gentoo/ 
http://ftp.snt.utwente.nl/pub/os/linux/gentoo 
http://ftp.uni-erlangen.de/pub/mirrors/gentoo 
http://mirrors.sec.informatik.tu-darmstadt.de/gentoo/ 
http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/ 
http://gentoo.tiscali.nl/gentoo/ 
http://ftp.belnet.be/mirror/rsync.gentoo.org/gentoo/ 
http://ftp.gentoo.skynet.be/pub/gentoo/" 
MAKEOPTS="-j2" 
PKGDIR="/usr/portage/packages" 
PORTAGE_TMPDIR="/var/tmp" 
PORTDIR="/usr/portage" 
PORTDIR_OVERLAY="" 
SYNC="rsync://rsync.gentoo.org/gentoo-portage" 
USE="X aalib alsa amd64 apm arts audiofile avi berkdb bonobo cdr crypt debug 
encode esd foomaticdb gdbm gif gnome gpm gtk gtk2 gtkhtml imlib jpeg kde libg++ 
libwww mikmod mng motif mozilla mpeg ncurses nls nogcj oggvorbis opengl oss pam 
pdflib perl png python qt quicktime readline sdl slang spell ssl tcltk tcpd 
truetype xml2 xmms xv zlib"

Created an attachment (id=33401) [edit]
Patch to fix segmentation fault on amd64

The attached patch fixed the problem for me.

Thx for your (imho very good because good commented) patch. ferringb liked it
too ;-)
In CVS now, thanks!