anchor.diff:              s|-lltdl|-L${libtool}/lib -lltdl|g'
     '';
   
  -  doCheck = true;
  +  # make check doesn't work on darwin
  +  doCheck = !stdenv.isDarwin;
   
     setupHook = ./setup-hook-2.0.sh;
   
  
positive.code: 
    # Explicitly link against libgcc_s, to work around the infamous
    # "libgcc_s.so.1 must be installed for pthread_cancel to work".
    LDFLAGS = "-lgcc_s";
  
    postInstall = ''
      wrapProgram $out/bin/guile-snarf --prefix PATH : "${gawk}/bin"
  
negative.code: 
    meta = {
      description = "GNU Guile 2.0, an embeddable Scheme implementation";
      homepage    = http://www.gnu.org/software/guile/;
      license     = stdenv.lib.licenses.lgpl3Plus;
      maintainers = with stdenv.lib.maintainers; [ ludo lovek323 ];
      platforms   = stdenv.lib.platforms.all;
  
      longDescription = ''
        GNU Guile is an implementation of the Scheme programming language, with
  