{ stdenv, fetchurl }: let baseVersion="3"; minorVersion="7"; in stdenv.mkDerivation rec { name = "spass-${version}"; version = "${baseVersion}.${minorVersion}"; src = fetchurl { url = "http://www.spass-prover.org/download/sources/spass${baseVersion}${minorVersion}.tgz"; sha256 = "1k5a98kr3vzga54zs7slwwaaf6v6agk1yfcayd8bl55q15g7xihk"; }; meta = with stdenv.lib; { description = "An automated theorem preover for FOL"; maintainers = with maintainers; [ raskin ]; platforms = platforms.linux; license = licenses.bsd2; downloadPage = "http://www.spass-prover.org/download/index.html"; }; }