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>>> Installing (1 of 80) dev-libs/pwlib-1.10.10-r1
 * checking 174 files for package collisions
 * This package will overwrite one or more files that may belong to other
 * packages (see list below). You can use a command such as `portageq
 * owners / <filename>` to identify the installed package that owns a
 * file. If portageq reports that only one package owns a file then do
 * NOT file a bug report. A bug report is only useful if it identifies at
 * least two or more packages that are known to install the same file(s).
 * If a collision occurs and you can not explain where the file came from
 * then you should simply ignore the collision since there is not enough
 * information to determine if a real problem exists. Please do NOT file
 * a bug report at http://bugs.gentoo.org unless you report exactly which
 * two packages install the same file(s). Once again, please do NOT file
 * a bug report unless you have completely understood the above message.
 *
 * Detected file collision(s):
 *
 *      /usr/bin/ptlib-config
 *      /usr/include/ptlib.h
 *      /usr/include/ptbuildopts.h
 *      /usr/include/ptlib/MacMainIf.h
 *      /usr/include/ptlib/args.h
 *      /usr/include/ptlib/array.h
 *      /usr/include/ptlib/channel.h
 *      /usr/include/ptlib/conchan.h
 *      /usr/include/ptlib/config.h
 *      /usr/include/ptlib/contain.h
 *      /usr/include/ptlib/critsec.h
 *      /usr/include/ptlib/dict.h
 *      /usr/include/ptlib/dynalink.h
 *      /usr/include/ptlib/ethsock.h
 *      /usr/include/ptlib/file.h
 *      /usr/include/ptlib/filepath.h
 *      /usr/include/ptlib/icmpsock.h
 *      /usr/include/ptlib/indchan.h
 *      /usr/include/ptlib/int64.h
 *      /usr/include/ptlib/ipdsock.h
 *      /usr/include/ptlib/ipsock.h
 *      /usr/include/ptlib/lists.h
 *      /usr/include/ptlib/mail.h
 *      /usr/include/ptlib/mutex.h
 *      /usr/include/ptlib/notifier.h
 *      /usr/include/ptlib/notifier_ext.h
 *      /usr/include/ptlib/object.h
 *      /usr/include/ptlib/pdirect.h
 *      /usr/include/ptlib/pfactory.h
 *      /usr/include/ptlib/pipechan.h
 *      /usr/include/ptlib/plugin.h
 *      /usr/include/ptlib/pluginmgr.h
 *      /usr/include/ptlib/pprocess.h
 *      /usr/include/ptlib/psharedptr.h
 *      /usr/include/ptlib/pstring.h
 *      /usr/include/ptlib/psync.h
 *      /usr/include/ptlib/ptime.h
 *      /usr/include/ptlib/qos.h
 *      /usr/include/ptlib/remconn.h
 *      /usr/include/ptlib/safecoll.h
 *      /usr/include/ptlib/semaphor.h
 *      /usr/include/ptlib/serchan.h
 *      /usr/include/ptlib/sfile.h
 *      /usr/include/ptlib/smartptr.h
 *      /usr/include/ptlib/socket.h
 *      /usr/include/ptlib/sockets.h
 *      /usr/include/ptlib/sound.h
 *      /usr/include/ptlib/svcproc.h
 *      /usr/include/ptlib/syncpoint.h