anchor.diff:      ghc : let
       deriv = name : goSrcDir : deps : 
         let bd = builderDefs {
  -          goSrcDir = "ghc-*/libraries";
  +          goSrcDir = "ghc-* /libraries";
             src = ghc.extra_src;
           } null; in
         stdenv.mkDerivation rec {
  
positive.code:     profiledCompiler = true;
    });
  
    # This new ghc stuff is under heavy development and might change ! 
  
    # usage: see ghcPkgUtil.sh - use setup-new2 because of PATH_DELIMITER
  
negative.code:         # (flatten ghcsAndLibs.ghc68.core_libs);
        inherit ghc;
    };
  
    */
  
    # ghc66boot = import ../development/compilers/ghc-6.6-boot {
    #  inherit fetchurl stdenv perl readline;
  