Makefile.am

ACLOCAL_AMFLAGS    = -I m4
SUBDIRS            = src
doc_DATA           = README.md LICENSE ChangeLog.md
EXTRA_DIST         = README.md LICENSE ChangeLog.md

# Target to run when building a release
release: distcheck
	@for file in $(DIST_ARCHIVES); do		\
		md5sum $$file > ../$$file.md5;		\
		sha256sum $$file > ../$$file.sha256;	\
	done
	@mv $(DIST_ARCHIVES) ../
	@echo
	@echo "Resulting release files:"
	@echo "================================================================="
	@for file in $(DIST_ARCHIVES); do					\
		printf "$$file    \tDistribution tarball\n";			\
		printf "$$file.md5\t";    cat ../$$file.md5    | cut -f1 -d' ';	\
		printf "$$file.sha256\t"; cat ../$$file.sha256 | cut -f1 -d' ';	\
	done