[gentoo-user] emerge mythtv fails

[Shawn Haggett]

Some recent updates have broken my mythtv (missing libraries) so I'm of course 
trying to recompile it. Whenever I try however, the following happens:

sgc ~ # emerge -va mythtv

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N    ] media-tv/mythtv-0.21_p18314-r1  USE="aac alsa dvd ieee1394 mmx 
opengl perl python xvmc 
(-altivec) -autostart -debug -directv -dvb -fftw -jack -lcd -lirc" 
VIDEO_CARDS="nvidia" 0 kB

Total: 1 package (1 new), Size of downloads: 0 kB

Would you like to merge these packages? [Yes/No] y

>>> Verifying ebuild manifests

>>> Emerging (1 of 1) media-tv/mythtv-0.21_p18314-r1
 * mythtv-0.21_p18314.tar.bz2 RMD160 SHA1 SHA256 size ;-) ...            [ 
ok ]
 * checking ebuild checksums ;-) ...                                     [ 
ok ]
 * checking auxfile checksums ;-) ...                                    [ 
ok ]
 * checking miscfile checksums ;-) ...                                   [ 
ok ]
 * This ebuild now uses a heavily stripped down version of your CFLAGS
 *
 * For NVIDIA based cards, the XvMC renderer only works on
 * the NVIDIA 4, 5, 6 & 7 series cards.
>>> Unpacking source...
>>> Unpacking mythtv-0.21_p18314.tar.bz2
to /var/tmp/portage/media-tv/mythtv-0.21_p18314-r1/work
/var/tmp/portage/media-tv/mythtv-0.21_p18314-r1/temp/environment: line 3924: 
cd: /var/tmp/portage/media-tv/mythtv-0.21_p18314-r1/work/branches/release-0-21-fixes/mythtv: 
No such file or directory
sed: can't 
read /var/tmp/portage/media-tv/mythtv-0.21_p18314-r1/work/branches/release-0-21-fixes/mythtv/version.pro: 
No such file or directory
 *
 * ERROR: media-tv/mythtv-0.21_p18314-r1 failed.
 * Call stack:
 *               ebuild.sh, line   49:  Called src_unpack
 *             environment, line 3925:  Called die
 * The specific snippet of code:
 *       sed -e "s:\`(svnversion \$\${SVNTREEDIR} 2>\/dev\/null) || echo 
Unknown\`:${MYTHTV_REV}:" -i "${S}"/version.pro || die "svnversion sed 
failed";
 *  The die message:
 *   svnversion sed failed
 *
 * If you need support, post the topmost build error, and the call stack if 
relevant.
 * A complete build log is located 
at '/var/tmp/portage/media-tv/mythtv-0.21_p18314-r1/temp/build.log'.
 * The ebuild environment file is located 
at '/var/tmp/portage/media-tv/mythtv-0.21_p18314-r1/temp/environment'.
 *

>>> Failed to emerge media-tv/mythtv-0.21_p18314-r1, Log file:

>>>  '/var/tmp/portage/media-tv/mythtv-0.21_p18314-r1/temp/build.log'
sgc ~ #         


The error seems to be in the line: 
/var/tmp/portage/media-tv/mythtv-0.21_p18314-r1/temp/environment: line 3924: 
cd: /var/tmp/portage/media-tv/mythtv-0.21_p18314-r1/work/branches/release-0-21-fixes/mythtv: 
No such file or directory

There's a folder missing somewhere, and when I look, sure enough:

sgc ~ # ls /var/tmp/portage/media-tv/mythtv-0.21_p18314-r1/work/
mythtv-0.21_p18314
sgc ~ #  

It seems the work folder has a 'mythtv-0.21_p18314' folder, which has the 
branches folder inside that.

This has been broken for over a week now (normally I just wait, resync and 
these things go away if they're an ebuild problem) but I'm starting to think 
it's a problem on my end. Anyone have any suggestions on how to track down 
where the error is coming from. It the environment file, but I'm not sure if 
that's a distributed file, or generated by portage (I suspect the later). So 
where does that file get its contents from?

Thanks
Shawn