default_pre_build      &&
cd  $SOURCE_DIRECTORY  &&
patch -p1 < $SCRIPT_DIRECTORY/mk.diff  &&
# remove included packages
rm -r libogg* libvorbis* faac* faad2* jpeg ffmpeg* lame* libdv-0* x264*  &&
if make -v | grep -q 3.81; then
  # fix Makefile to work with make 3.81
  sedit  's/\\;/;/g'  Makefile
fi