anchor.diff:    mig = import ../os-specific/gnu/mig {
       inherit fetchgit stdenv autoconf automake flex bison machHeaders;
     };
  -  migCross = mig;  # FIXME: Remove me.
   
     mk = import ../development/tools/build-managers/mk {
       inherit fetchurl stdenv;
  
positive.code:   });
  
    hurdHeaders = import ../os-specific/gnu/hurd {
      inherit fetchgit stdenv autoconf libtool texinfo machHeaders;
      mig = migCross;
      automake = automake111x;
      headersOnly = true;
    };
  
negative.code:      //
  
       (if crossGNU
        then { inherit machHeaders hurdHeaders mig fetchgit; }
        else { }))));
  
    glibcCross = glibc211Cross;
  