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Bug 75883 - ffmpeg-0.4.9_pre1 ebuild crashes on msmpeg4
Summary: ffmpeg-0.4.9_pre1 ebuild crashes on msmpeg4
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: x86 Linux
: High major
Assignee: Gentoo Media-video project
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2004-12-27 23:30 UTC by Vivien Milat
Modified: 2005-01-09 00:13 UTC (History)
0 users

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Package list:
Runtime testing required: ---

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Description Vivien Milat 2004-12-27 23:30:47 UTC 
When trying to emerge ffmpeg or apps using ffmpeg like mplayer, I get this error.

Other bugs in bugzilla (62477) suggest this has to do with -fPIC compiler option, but I don't have that enabled. I also tried with USE="-mmx", but got the same error.

Reproducible: Always
Steps to Reproduce:
1.Emerge ffmpeg with these USE flags.

Actual Results:  
gcc -Wall -O2 -mcpu=i686 -march=pentium4 -DHAVE_AV_CONFIG_H -I..
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE -c -o msmpeg4.o msmpeg4.c
msmpeg4.c: In function `msmpeg4_pred_dc':
msmpeg4.c:720: error: can't find a register in class `GENERAL_REGS' while
reloading `asm'
wmv2.c: At top level:
wmv2.c:104: warning: `wmv2_encode_end' defined but not used
make[1]: *** [msmpeg4.o] Error 1
make[1]: Leaving directory
`/var/tmp/portage/ffmpeg-0.4.9_pre1/work/ffmpeg-0.4.9-pre1/libavcodec'
make: *** [lib] Error 2


Expected Results:  
Successful compilation.

calcium root # emerge info
Portage 2.0.51-r3 (default-linux/x86/2004.3, gcc-3.3.4, glibc-2.3.4.20040808-r1,
2.6.9-gentoo-r13 i686)
=================================================================
System uname: 2.6.9-gentoo-r13 i686 Intel(R) Celeron(R) CPU 2.66GHz
Gentoo Base System version 1.4.16
Autoconf: sys-devel/autoconf-2.59-r5
Automake: sys-devel/automake-1.8.5-r1
Binutils: sys-devel/binutils-2.15.90.0.1.1-r3
Headers:  sys-kernel/linux-headers-2.4.21-r1
Libtools: sys-devel/libtool-1.5.2-r7
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CFLAGS="-O2 -mcpu=i686 -march=pentium4"
CHOST="i686-pc-linux-gnu"
COMPILER=""
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config
/usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown
/usr/kde/3/share/config /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O2 -mcpu=i686 -march=pentium4"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms"
GENTOO_MIRRORS="http://gentoo.mirrors.pair.com/ http://chod.cwru.edu/gentoo"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 X acl alsa apm arts avi berkdb bitmap-fonts cdparanoia cdr crypt cups
divx4linux dvd encode esd fam flac foomatic foomaticdb fortran gdbm gif gnome
gpm gtk gtk2 imagemagick ipv6 java jpeg kde libwww lirc mad mikmod mmx motif
mpeg mysql mythtv ncurses network nls nvidia oggvorbis opengl oss pam pdflib
perl pngppds python qt quicktime readline samba sdl spell sse ssl svga tcltk
tcpd tiff truetype v4l vim-with-x win32codecs xml xml2 xmms xv xvid zlib"
Comment 1 Vivien Milat 2004-12-28 21:18:00 UTC 
I did some additional experimenting; this issue only happens when both -mcpu=i686 and -march=pentium4 are in the CFLAGS. If either one of those is removed, ffmpeg emerges fine.
Comment 2 Jan Brinkmann (RETIRED) gentoo-dev 2005-01-09 00:13:55 UTC 
then i'll mark this one as fixed. thanks.