anchor.diff:  , libtirpc
   }:
   
  +let
  +  version = "1.3.0";
  +in
   stdenv.mkDerivation rec {
     name = "pam-${version}";
  -  version = "1.3.0";
   
     src = fetchurl {
       url = "http://www.linux-pam.org/library/Linux-PAM-${version}.tar.bz2";
  
positive.code: { stdenv
  , fetchurl
  
  , audit_lib
  , cracklib
  
negative.code:     ln -sv /var/setuid-wrappers/unix_chkpwd $out/sbin/unix_chkpwd
    '';
  
    meta = with lib; {
      homepage = http://ftp.kernel.org/pub/linux/libs/pam/;
      description = "Pluggable Authentication Modules, a flexible mechanism for authenticating user";
      license = licenses.bsd3;
  