anchor.diff:      sed -i 's,#include <gpg-error.h>,#include "${libgpgerror.dev}/include/gpg-error.h",g' $dev/include/assuan.h
     '';
   
  -  meta = {
  +  meta = with stdenv.lib; {
       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;
  +    license = licenses.lgpl2Plus;
  +    platforms = platforms.all;
     };
   }
  
positive.code: { fetchurl, stdenv, pth, libgpgerror }:
  
  stdenv.mkDerivation rec {
    name = "libassuan-2.5.1";
  
negative.code:   outputs = [ "out" "dev" "info" ];
    outputBin = "dev"; # libassuan-config
  
    buildInputs = [ libgpgerror pth ]
      ++ stdenv.lib.optional stdenv.isDarwin gettext;
  
    doCheck = true;
  
  