anchor.diff:  
     doCheck = true;
   
  -  meta = {
  +  meta = with stdenv.lib; {
       description = "A simple, lightweight C library for writing XMPP clients";
       longDescription = ''
         libstrophe is a lightweight XMPP client library written in C. It has
  
positive.code: { stdenv, fetchFromGitHub, automake, autoconf, libtool, openssl, expat, pkgconfig, check }:
  
  stdenv.mkDerivation rec {
    pname = "libstrophe";
    version = "0.10.0";
  
    src = fetchFromGitHub {
      owner = "strophe";
      repo = pname;
      rev = version;
      sha256 = "1hizw695fw0cy88h1dpl9pvniapml2zw9yvxck8xvxbqfz54jwja";
    };
  
    nativeBuildInputs = [ automake autoconf pkgconfig libtool check ];
    buildInputs = [ openssl expat ];
  
    dontDisableStatic = true;
  
negative.code:       runs well on both Linux, Unix, and Windows based platforms.
      '';
      homepage = "https://strophe.im/libstrophe/";
      license = with licenses; [ gpl3 mit ];
      platforms = platforms.unix;
      maintainers = with maintainers; [ devhell flosse ];
    };
  }
  