Removed unused variable.

git-svn-id: https://www.libavg.de/svn/trunk/libavg@9365 44470bb9-56e9-0310-a0f8-c586564d3dc6
Mavericks compile fix.

git-svn-id: https://www.libavg.de/svn/trunk/libavg@9366 44470bb9-56e9-0310-a0f8-c586564d3dc6
mavericks branch: Replace mutex with boost::mutex.

git-svn-id: https://www.libavg.de/svn/trunk/libavg@9367 44470bb9-56e9-0310-a0f8-c586564d3dc6
mavericks branch: boost and libdc1394 updates.

git-svn-id: https://www.libavg.de/svn/trunk/libavg@9368 44470bb9-56e9-0310-a0f8-c586564d3dc6