anchor.diff:      
       mtx = mtx_1_0_0;
       
  -    neotoma_1_7_3 = callPackage
  -      (
  -	{ buildHex }:
  -	  buildHex {
  -	    name = "neotoma";
  -	    version = "1.7.3";
  -	    sha256 =
  -	      "2da322b9b1567ffa0706a7f30f6bbbde70835ae44a1050615f4b4a3d436e0f28";
  -	      
  -	    meta = {
  -	      description = "PEG/Packrat toolkit and parser-generator.";
  -	      license = stdenv.lib.licenses.mit;
  -	      homepage = "https://github.com/seancribbs/neotoma";
  -	    };
  -	  }
  -      ) {};
  -    
  -    neotoma = neotoma_1_7_3;
  -    
  -    p1_stringprep_1_0_0 = callPackage
  -      (
  -	{ buildHex, p1_utils_1_0_1 }:
  -	  buildHex {
  -	    name = "p1_stringprep";
  -	    version = "1.0.0";
  -	    sha256 =
  -	      "2a9ce90acb64089f0a34cc592690b398830a5b6fd3c8a84689af5d2feb85d876";
  -	    compilePorts = true;
  -	    
  -	    erlangDeps  = [ p1_utils_1_0_1 ];
  -	    
  -	    meta = {
  -	      description = "Fast Stringprep Erlang / Elixir implementation";
  -	      license = with stdenv.lib.licenses; [ asl20 free ];
  -	      homepage = "https://github.com/processone/stringprep";
  -	    };
  -	  }
  -      ) {};
  -    
  -    p1_stringprep = p1_stringprep_1_0_0;
  -    
  -    p1_utils_1_0_0 = callPackage
  -      (
  -	{ buildHex }:
  -	  buildHex {
  -	    name = "p1_utils";
  -	    version = "1.0.0";
  -	    sha256 =
  -	      "b2c6316286b071f2f667fb1c59b44fe0c996917515fa93374a4a3264affc5105";
  -	      
  -	    meta = {
  -	      description = "Erlang utility modules from ProcessOne";
  -	      license = stdenv.lib.licenses.asl20;
  -	      homepage = "https://github.com/processone/p1_utils";
  -	    };
  -	  }
  -      ) {};
  -    
  -    p1_utils_1_0_1 = callPackage
  -      (
  -	{ buildHex }:
  -	  buildHex {
  -	    name = "p1_utils";
  -	    version = "1.0.1";
  -	    sha256 =
  -	      "8e19478439c3ef05229fbd4fb65ff2e4aee02458a9c2b86a103a7f1384b76fdb";
  -	      
  -	    meta = {
  -	      description = "Erlang utility modules from ProcessOne";
  -	      license = stdenv.lib.licenses.asl20;
  -	      homepage = "https://github.com/processone/p1_utils";
  -	    };
  -	  }
  -      ) {};
  -    
  -    p1_utils_1_0_2 = callPackage
  -      (
  -	{ buildHex }:
  -	  buildHex {
  -	    name = "p1_utils";
  -	    version = "1.0.2";
  -	    sha256 =
  -	      "c4b770fd925f2fc6c301a1e27f1bfb77aff3fff8d0951cc56c06bef9835af918";
  -	      
  -	    meta = {
  -	      description = "Erlang utility modules from ProcessOne";
  -	      license = stdenv.lib.licenses.asl20;
  -	      homepage = "https://github.com/processone/p1_utils";
  -	    };
  -	  }
  -      ) {};
  -    
  -    p1_utils_1_0_3 = callPackage
  -      (
  -	{ buildHex }:
  -	  buildHex {
  -	    name = "p1_utils";
  -	    version = "1.0.3";
  -	    sha256 =
  -	      "6bf7dc7108eee70e036ea745faf5f55b4354e267f14371ea13338f58ce402d5e";
  -	      
  -	    meta = {
  -	      description = "Erlang utility modules from ProcessOne";
  -	      license = stdenv.lib.licenses.asl20;
  -	      homepage = "https://github.com/processone/p1_utils";
  -	    };
  -	  }
  -      ) {};
  -    
  -    p1_utils = p1_utils_1_0_3;
  -    
       pc_1_2_0 = callPackage
         (
   	{ buildHex }:
  
positive.code:  * rebar3_eqc_0_0_8
   * rebar3_exunit_0_1_1
   * rebar3_live_0_1_3
   * rebar3_proper_0_5_0
   * rebar3_protobuffs_0_2_0
   * rebar3_run_0_2_0
   * rebar3_yang_plugin_0_2_1
   * rebar_protobuffs_0_1_0
   * riak_pb_2_1_0
   * riakc_2_1_1
   * service_1_5_1
  
negative.code:  * mcrypt_0_1_0
   * mdns_client_0_1_7
   * mdns_client_lib_0_1_33
   * mimerl_1_0_0
   * mmath_0_1_15
   * mmath_0_1_16
   * msgpack_0_4_0
   * mstore_0_1_9
   * n2o_2_3_0
   * nacl_0_3_0
   * neotoma_1_7_3
   * nodefinder_1_4_0
   * nodefinder_1_5_1
   * observer_cli_1_0_3
   * p1_stringprep_1_0_0
   * p1_utils_1_0_0
   * p1_utils_1_0_1
   * p1_utils_1_0_2
   * p1_utils_1_0_3
   * p1_xml_1_1_1
   * parse_trans_2_9_0
   * picosat_0_1_0
   * png_0_1_1
   * pooler_1_4_0
   * protobuffs_0_8_2
   * rankmatcher_0_1_2
  