anchor.diff:  #
   #  librsync_0_9 = callPackage ../development/libraries/librsync/0.9.nix { };
   #
  -#  libs3 = callPackage ../development/libraries/libs3 { };
  +  libs3 = callPackage ../development/libraries/libs3 { };
   #
   #  libsearpc = callPackage ../development/libraries/libsearpc { };
   #
  
positive.code: #
  #  libiberty = callPackage ../development/libraries/libiberty { };
  #
  #  libibverbs = callPackage ../development/libraries/libibverbs { };
  #
  #  libxcomp = callPackage ../development/libraries/libxcomp { };
  #
  #  libx86emu = callPackage ../development/libraries/libx86emu { };
  #
  #  librdmacm = callPackage ../development/libraries/librdmacm { };
  #
  #  libwebsockets = callPackage ../development/libraries/libwebsockets { };
  #
  
negative.code: #
  #  rlog = callPackage ../development/libraries/rlog { };
  #
    rocksdb = callPackage ../development/libraries/rocksdb { };
  #
  #  rote = callPackage ../development/libraries/rote { };
  #
  