anchor.diff:  
     mitmproxy = callPackage ../tools/networking/mitmproxy { };
   
  -  mjpegtoolsFull = callPackage ../tools/video/mjpegtools { };
  -
  -  mjpegtools = self.mjpegtoolsFull.override {
  +  mjpegtools = callPackage ../tools/video/mjpegtools {
       withMinimal = true;
  +  };
  +
  +  mjpegtoolsFull = mjpegtools.override {
  +    withMinimal = false;
     };
   
     mkcue = callPackage ../tools/cd-dvd/mkcue { };
  
positive.code: 
    libdbi = callPackage ../development/libraries/libdbi { };
  
    libdbiDriversBase = callPackage ../development/libraries/libdbi-drivers {
      mysql = null;
      sqlite = null;
    };
  
    libdbiDrivers = libdbiDriversBase.override {
      inherit sqlite mysql;
    };
  
    libdbusmenu-glib = callPackage ../development/libraries/libdbusmenu { };
    libdbusmenu-gtk2 = callPackage ../development/libraries/libdbusmenu { gtkVersion = "2"; };
  
negative.code:   libheimdal = heimdalFull.override { type = "lib"; };
  
    harfbuzz = callPackage ../development/libraries/harfbuzz { };
    harfbuzz-icu = harfbuzz.override {
      withIcu = true;
      withGraphite2 = true;
    };
  