anchor.diff:    gprolog = callPackage ../development/compilers/gprolog { };
   
     gwt = callPackage ../development/compilers/gwt {
  -    inherit (gtkLibs) glib gtk pango atk;
       libstdcpp5 = gcc33.gcc;
     };
     gwt240 = callPackage ../development/compilers/gwt/2.4.0.nix { };
  
positive.code:   antiword = callPackage ../applications/office/antiword {};
  
    ardour = callPackage ../applications/audio/ardour {
      inherit (gtkLibs) glib pango gtk glibmm gtkmm;
      inherit (gnome) libgnomecanvas;
    };
  
    ardour3 =  lowPrio (callPackage ../applications/audio/ardour/ardour3.nix {
      inherit (gtkLibs) glib pango gtk glibmm gtkmm;
      inherit (gnome) libgnomecanvas libgnomecanvasmm;
    });
  
  
negative.code:     perf = callPackage ../os-specific/linux/kernel/perf.nix { };
  
      sysprof = callPackage ../development/tools/profiling/sysprof {
        inherit (gnome) libglade;
      };
  
      systemtap = callPackage ../development/tools/profiling/systemtap {
  