anchor.diff:  #
   #  libewf = callPackage ../development/libraries/libewf { };
   #
  -#  libexif = callPackage ../development/libraries/libexif { };
  +  libexif = callPackage ../development/libraries/libexif { };
   #
   #  libexosip = callPackage ../development/libraries/exosip {};
   #
  
positive.code: #
  #  libcddb = callPackage ../development/libraries/libcddb { };
  #
  #  libcdio = callPackage ../development/libraries/libcdio { };
  #  libcdio082 = callPackage ../development/libraries/libcdio/0.82.nix { };
  #
  #  libcdr = callPackage ../development/libraries/libcdr { lcms = lcms2; };
  
negative.code: #
  #  MBdistortion = callPackage ../applications/audio/MBdistortion { };
  #
    mcpp = callPackage ../development/compilers/mcpp { };
  #
  #  mda_lv2 = callPackage ../applications/audio/mda-lv2 { };
  #
  