mk_source_dir $SOURCE_DIRECTORY &&
cd $SOURCE_DIRECTORY            &&
unpack_file           &&
cd ${SOURCE_DIRECTORY}/fftw-$VERSION &&
cd - >/dev/null &&
cp -r $SOURCE_DIRECTORY/fftw-$VERSION $SOURCE_DIRECTORY/fftw-single-$VERSION &&
cp -r $SOURCE_DIRECTORY/fftw-$VERSION $SOURCE_DIRECTORY/fftw-double-$VERSION &&
mv $SOURCE_DIRECTORY/fftw-$VERSION $SOURCE_DIRECTORY/fftw-longdouble-$VERSION