At first, unpack downloaded archive (e.g. using midnight commander) and move to program directory (ffmpeg2theora_fe). This program uses build system qmake. Default installation path is set to /usr/bin To change it, edit line DESTDIR in project file ffmpeg2theora_fe.pro Now, it is time to generate Makefile. Simply run
qmake -o Makefile ffmpeg2theora_fe.pro su -c "make"Second command will build program and copy executable (ffmpeg2theora_fe) to destination specified in DESTDIR variable in project file (see above). To uninstall program, run
su -c "make distclean"from source directory. Or you may manualy remove the executable.