> Emerging (41 of 728) app-misc/sabayon-version-3.4-r1 to /
 * checking ebuild checksums ;-) ...                                      [ ok ]
 * checking auxfile checksums ;-) ...                                     [ ok ]
 * checking miscfile checksums ;-) ...                                    [ ok ]
>>> Unpacking source...
 *
 * ERROR: app-misc/sabayon-version-3.4-r1 failed.
 * Call stack:
 *   ebuild.sh, line 1647:   Called dyn_unpack
 *   ebuild.sh, line 768:   Called qa_call 'src_unpack'
 *   ebuild.sh, line 44:   Called src_unpack
 *   sabayon-version-3.4-r1.ebuild, line 34:   Called die
 *
 * No release type selected using USE flags
 * 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/app-misc/sabayon-version-3.4-r1/temp/build.log'.
 *

 * Messages for package dev-libs/expat-2.0.0:

 * Please note that the soname of the library changed!
 * If you are upgrading from a previous version you need
 * to fix dynamic linking inconsistencies by executing:
 * revdep-rebuild --library libexpat.so.0

 * Messages for package media-libs/x264-svn-20070325:

 * Please note that this package now only installs
 * x264-svn libraries. In order to have the encoder,
 * please emerge media-video/x264-svn-encoder

 * Messages for package net-misc/rsync-2.6.9-r2:

 * The rsyncd.conf file has been moved for you to /etc/rsyncd.conf
 * Please make sure you do NOT disable the rsync server running
 * in a chroot.  Please check /etc/rsyncd.conf and make sure
 * it says: use chroot = yes
 * Regenerating GNU info directory index...
 * Processed 223 info files.
 * IMPORTANT: 2 config files in '/etc' need updating.
 * Type emerge --help config to learn how to update config files.