all:	clean makedist unpack build

unpack:
	ls ../../parallel-*.tar.bz2| tail -n1 | parallel tar xvf 
	cd parallel-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]; cp -a ../debian-template debian

build:
	which dpkg-buildpackage >/dev/null || ( \
	echo "Error, could not find 'dpkg-buildpackage'." ; \
	echo "To install, run:" ; \
	echo -e "\tapt-get install dpkg-dev" ; \
	false )
	cd parallel-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]; perl -i -pe "s/201[0-9]{5}-[0-9]+/"`src/parallel --minversion 1`"/"  debian/{changelog,parallel/DEBIAN/control}
	cd parallel-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]; dpkg-buildpackage -us -uc
	@echo 
	@echo "To install the GNU Parallel Debian package, run:"
	@echo -e \\t sudo dpkg -i `ls -rt parallel_*_all.deb | tail -n 1`

clean:
	rm -f parallel_*
	rm -rf parallel-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]

distclean:
	rm -f parallel_*
	rm -rf parallel-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]

makedist:
	cd ../..; make dist-bzip2 dist-gzip