anchor.diff:  { stdenv, fetchurl, m4, perl, lzma }:
   
   stdenv.mkDerivation rec {
  -  name = "libtool-2.2.6a";
  -  
  +  name = "libtool-2.2.6b";
  +
     src = fetchurl {
       url = "mirror://gnu/libtool/${name}.tar.lzma";
  -    sha256 = "12k3m7d0ngcwwahicncxbyd1155ij63ylr8372f0q8xbzq59c8hx";
  +    sha256 = "1bmpp31sfjl3nzj8psvnsqrrv4gwnqzii8dxpxr6djz508yavsv6";
     };
  -  
  +
     buildInputs = [ lzma m4 perl ];
   
     unpackCmd = "lzma -d < $src | tar xv";
  
positive.code:   # Don't fixup "#! /bin/sh" in Libtool, otherwise it will use the
    # "fixed" path in generated files!
    dontPatchShebangs = true;
  
    meta = {
      description = "GNU Libtool, a generic library support script";
  
negative.code:     homepage = http://www.gnu.org/software/libtool/;
  
      license = "GPLv2+";
  
      maintainers = [ stdenv.lib.maintainers.ludo ];
    };
  }
  