anchor.diff:       //
   
        (if crossGNU
  -      then {
  -        inherit machHeaders hurdHeaders fetchgit;
  -        mig = migCross;
  -      }
  +      then { inherit machHeaders hurdHeaders mig fetchgit; }
         else { }))));
   
     glibcCross = glibc211Cross;
  
positive.code:   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;
  
negative.code:   });
  
    hurdHeaders = import ../os-specific/gnu/hurd {
      inherit fetchgit stdenv autoconf libtool texinfo mig machHeaders;
      automake = automake111x;
      headersOnly = true;
    };
  