if [[ "$GMIME_22BRANCH" == "y" ]]; then
   default_pre_build &&
   cd "$SOURCE_DIRECTORY" &&
   patch -p0 < $SCRIPT_DIRECTORY/gmime-2.2-mono.patch
else
  mk_source_dir $SOURCE_DIRECTORY &&
  cd $BUILD_DIRECTORY &&
  verify_file '' &&
  xz -dc $SOURCE_CACHE/$SOURCE | tar -xf - &&
  cd $SOURCE_DIRECTORY
fi
