function postdownload() {
	:
}

function extract() {
	if [ -d "${buildsrcdir}" ]; then
		mkdir "${workdir}" || return 1
		mkdir -p "${workdir}" || return 1

		cp -rp "${buildsrcdir}"/* "${workdir}" || return 1

		return 0
	fi

	if [ -n "${pkgarchive}" ]; then
		(
			mkdir "${workdir}" || exit 1
			mkdir -p "${workdir}" || exit 1

			cd "${workdir}" || exit 1

			case "${pkgarchive}" in
				*.tar.gz|*.tgz)
					gzip -dc "${pkgarchive}" | tar -xf - || exit 1
					;;