with import <nixpkgs> {};

stdenv.mkDerivation { 
  name = "namd-2.11"; 
  builder = ./builder.sh; 
  src = fetchurl { 
    url = http://ppomorsk.sharcnet.ca/namd-2.11.tar.gz;
    md5 = "8a81eb4c883edbf977d0af05351f6914";
  };

  buildInputs = [
    perl
    bash
    tcsh
  ];
}