nixpkgs/pkgs/development/compilers/yap/default.nix

{ stdenv, fetchurl, readline }:

stdenv.mkDerivation rec {
  version = "6.2.2";
  name = "yap-${version}";

  src = fetchurl {
    url = "http://www.dcc.fc.up.pt/~vsc/Yap/${name}.tar.gz";
    sha256 = "0l6p0vy667wws64cvwf74ssl6h9gypjzrsl3b2d32hs422186pzi";
  };

  buildInputs = [ readline ];

  meta = { 
    description = "Yap Prolog System is a ISO-compatible high-performance Prolog compiler";
    homepage = http://yap.sourceforge.net/;
    license = "artistic";
  };
}