anchor.diff:        your Makefile, Makefile.in, or Makefile.am.  See the
         documentation for details.
       '';
  -
       homepage = https://www.gnu.org/software/libtool/;
  -
  -    license = stdenv.lib.licenses.gpl2Plus;
  -
  +    license = licenses.gpl2Plus;
       maintainers = [ ];
  -    platforms = stdenv.lib.platforms.unix;
  +    platforms = platforms.unix;
     };
   }
  
positive.code: }:
  
  stdenv.mkDerivation rec {
    name = "libtool-2.4.6";
  
    src = fetchurl {
      url = "mirror://gnu/libtool/${name}.tar.gz";
      sha256 = "1qq61k6lp1fp75xs398yzi6wvbx232l7xbyn3p13cnh27mflvgg3";
    };
  
  
negative.code:   doCheck = false;
    doInstallCheck = false;
  
    enableParallelBuilding = true;
  
    # Don't run the native `strip' when cross-compiling.  This breaks at least
    # with `.a' files for MinGW.
    dontStrip = stdenv.hostPlatform != stdenv.buildPlatform;
  
    meta = with stdenv.lib; {
      description = "GNU Libtool, a generic library support script";
      longDescription = ''
        GNU libtool is a generic library support script.  Libtool hides
        the complexity of using shared libraries behind a consistent,
  