Install libvorbis by running the following commands: ./configure --prefix=/usr && make && make install libvorbis is known to cause compiler errors on certain machines. If you get errors, try these commands to install libvorbis: ./configure --prefix=/usr && cd lib && cp Makefile Makefile.bak && sed s/-mno-ieee-fp// Makefile.bak > Makefile && cd .. && make && make install