>>> Unpacking source...
>>> Unpacking ogmrip-0.10.0.tar.gz to /var/tmp/portage/ogmrip-0.10.0-r1/work
>>> Unpacking ogmrip-0.10.0-mplayer-rc.patch to /var/tmp/portage/ogmrip-0.10.0-r1/work
unpack ogmrip-0.10.0-mplayer-rc.patch: file format not recognized. Ignoring.

 * Cannot find $EPATCH_SOURCE!  Value for $EPATCH_SOURCE is:
 *
 *   /usr/portage/media-video/ogmrip/files/ogmrip-0.10.0-mplayer-rc.patch
 *   ( ogmrip-0.10.0-mplayer-rc.patch )


!!! ERROR: media-video/ogmrip-0.10.0-r1 failed.
Call stack:
  ebuild.sh, line 1546:   Called dyn_unpack
  ebuild.sh, line 708:   Called src_unpack
  ogmrip-0.10.0-r1.ebuild, line 61:   Called epatch '/usr/portage/media-video/ogmrip/files/ogmrip-0.10.0-mplayer-rc.patch'
  eutils.eclass, line 198:   Called die

!!! Cannot find $EPATCH_SOURCE!
!!! If you need support, post the topmost build error, and the call stack if relevant.