{ fetchurl, stdenv, cvs, zlib }:

stdenv.mkDerivation rec {
  name = "cvsps-2.1";
  src = fetchurl {
    url = "http://www.cobite.com/cvsps/${name}.tar.gz";
    sha256 = "0nh7q7zcmagx0i63h6fqqkkq9i55k77myvb8h6jn2f266f5iklwi";
  };

  buildInputs = [ cvs zlib ];

  installPhase = "make install prefix=$out";

  meta = {
    description = ''CVSps is a program for generating `patchset' information
                    from a CVS repository.  A patchset in this case is
		    defined as a set of changes made to a collection of
		    files, and all committed at the same time (using a single
		    "cvs commit" command).'';
    homepage = http://www.cobite.com/cvsps/;
    license = "GPLv2";
  };
}