* Configuring search environment for revdep-rebuild

 * Checking reverse dependencies
 * Packages containing binaries and libraries broken by a package update
 * will be emerged.

 * Collecting system binaries and libraries
 * Generated new /root/.revdep-rebuild.1_files

 * Collecting complete LD_LIBRARY_PATH
 * Generated new /root/.revdep-rebuild.2_ldpath

 * Checking dynamic linking consistency
 *   broken /usr/lib64/gstreamer-0.8/libgstossaudio.la (requires /usr/lib64/libgstinterfaces-0.8.la)
 *   broken /usr/lib64/gstreamer-0.8/libgstossaudio.so (requires libgstinterfaces-0.8.so.0)
 *   broken /usr/lib64/gstreamer-0.8/libgstvideo4linux2.la (requires /usr/lib64/libgstinterfaces-0.8.la)
 *   broken /usr/lib64/gstreamer-0.8/libgstvideo4linux2.so (requires libgstinterfaces-0.8.so.0)
 *   broken /usr/lib64/gstreamer-0.8/libgstxvimagesink.la (requires /usr/lib64/libgstinterfaces-0.8.la)
 *   broken /usr/lib64/gstreamer-0.8/libgstxvimagesink.so (requires libgstinterfaces-0.8.so.0)
 *   broken /usr/lib64/ruby/site_ruby/1.8/x86_64-linux/conf2xml.so (requires libconf2xml.so)
 * Generated new /root/.revdep-rebuild.3_rebuild

 * Assigning files to packages
 *   /usr/lib64/gstreamer-0.8/libgstossaudio.la -> media-plugins/gst-plugins-oss
 *   /usr/lib64/gstreamer-0.8/libgstossaudio.so -> media-plugins/gst-plugins-oss
 *   /usr/lib64/gstreamer-0.8/libgstvideo4linux2.la -> media-plugins/gst-plugins-v4l2
 *   /usr/lib64/gstreamer-0.8/libgstvideo4linux2.so -> media-plugins/gst-plugins-v4l2
 *   /usr/lib64/gstreamer-0.8/libgstxvimagesink.la -> media-plugins/gst-plugins-xvideo
 *   /usr/lib64/gstreamer-0.8/libgstxvimagesink.so -> media-plugins/gst-plugins-xvideo
 *   /usr/lib64/ruby/site_ruby/1.8/x86_64-linux/conf2xml.so -> dev-util/libconf
 * Generated new /root/.revdep-rebuild.4_packages_raw and /root/.revdep-rebuild.4_package_owners

 * Cleaning list of packages to rebuild
 * Generated new /root/.revdep-rebuild.4_packages

 * Assigning packages to ebuilds
 * Generated new /root/.revdep-rebuild.4_ebuilds

 * Evaluating package order
 * 
 * Warning: Failed to resolve package order.
 * Will merge in arbitrary order
 * 
Possible reasons:
- An ebuild is no longer in the portage tree.
- An ebuild is masked, use /etc/portage/packages.keyword
and/or /etc/portage/package.unmask to unmask it
.....

 * All prepared. Starting rebuild
emerge --oneshot --pretend =dev-util/libconf:0 =media-plugins/gst-plugins-oss:0.8 =media-plugins/gst-plugins-v4l2:0.8 =media-plugins/gst-plugins-xvideo:0.8

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

Calculating dependencies  

!!! '=dev-util/libconf:0' is not a valid package atom.
!!! Please check ebuild(5) for full details.
!!! (Did you specify a version but forget to prefix with '='?)

 * 
 * revdep-rebuild failed to emerge all packages.
 * you have the following choices:
 * - If emerge failed during the build, fix the problems and re-run revdep-rebuild.
 * - Use /etc/portage/package.keywords to unmask a newer version of the package.
 *   (and remove /root/.revdep-rebuild.5_order to be evaluated again)
 * - Modify the above emerge command and run it manually.
 * - Compile or unmerge unsatisfied packages manually,
 *   remove temporary files, and try again.
 *   (you can edit package/ebuild list first)
 * 
 * To remove temporary files, please run:
 * rm /root/.revdep-rebuild*.?_*