anchor.diff: -{ fetchurl, stdenv, pth, libgpgerror }:
  +{ fetchurl, stdenv, gettext, pth, libgpgerror }:
   
   stdenv.mkDerivation rec {
     name = "libassuan-2.5.1";
  
positive.code:     sed -i 's,#include <gpg-error.h>,#include "${libgpgerror.dev}/include/gpg-error.h",g' $dev/include/assuan.h
    '';
  
    meta = {
      description = "IPC library used by GnuPG and related software";
  
      longDescription = ''
        Libassuan is a small library implementing the so-called Assuan
        protocol.  This protocol is used for IPC between most newer
        GnuPG components.  Both, server and client side functions are
        provided.
      '';
  
      homepage = http://gnupg.org;
      license = stdenv.lib.licenses.lgpl2Plus;
      platforms = stdenv.lib.platforms.all;
    };
  }
  
negative.code:   outputs = [ "out" "dev" "info" ];
    outputBin = "dev"; # libassuan-config
  
    buildInputs = [ libgpgerror pth ]
      ++ stdenv.lib.optional stdenv.isDarwin gettext;
  
    doCheck = true;
  
  