anchor.diff:      };
     };
   
  -  yamux = buildGoPackage rec {
  -    rev = "b2e55852ddaf823a85c67f798080eb7d08acd71d";
  -    name = "yamux-${stdenv.lib.strings.substring 0 7 rev}";
  -    goPackagePath = "github.com/hashicorp/yamux";
  -
  -    src = fetchFromGitHub {
  -      inherit rev;
  -      owner = "hashicorp";
  -      repo = "yamux";
  -      sha256 = "0mr87my5m8lgc0byjcddlclxg34d07cpi9p78ps3rhzq7p37g533";
  -    };
  -  };
  -
  -  xon = buildGoPackage rec {
  -    rev = "d580be739d723da4f6378083128f93017b8ab295";
  -    name = "xon-${stdenv.lib.strings.substring 0 7 rev}";
  -    goPackagePath = "github.com/odeke-em/xon";
  -    src = fetchFromGitHub {
  -      inherit rev;
  -      owner = "odeke-em";
  -      repo = "xon";
  -      sha256 = "07a7zj01d4a23xqp01m48jp2v5mw49islf4nbq2rj13sd5w4s6sc";
  -    };
  +  yamux = buildFromGitHub {
  +    rev    = "b2e55852ddaf823a85c67f798080eb7d08acd71d";
  +    owner  = "hashicorp";
  +    repo   = "yamux";
  +    sha256 = "0mr87my5m8lgc0byjcddlclxg34d07cpi9p78ps3rhzq7p37g533";
  +  };
  +
  +  xon = buildFromGitHub {
  +    rev    = "d580be739d723da4f6378083128f93017b8ab295";
  +    owner  = "odeke-em";
  +    repo   = "xon";
  +    sha256 = "07a7zj01d4a23xqp01m48jp2v5mw49islf4nbq2rj13sd5w4s6sc";
     };
   
   }; in self
  
positive.code:     propagatedBuildInputs = [ snappy-go ];
    };
  
    go-syslog = buildGoPackage rec {
      rev = "42a2b573b664dbf281bd48c3cc12c086b17a39ba";
      name = "go-syslog-${stdenv.lib.strings.substring 0 7 rev}";
      goPackagePath = "github.com/hashicorp/go-syslog";
  
      src = fetchFromGitHub {
        inherit rev;
        owner = "hashicorp";
        repo = "go-syslog";
        sha256 = "1j53m2wjyczm9m55znfycdvm4c8vfniqgk93dvzwy8vpj5gm6sb3";
      };
    };
  
    go-systemd = buildGoPackage rec {
  
negative.code:     propagatedBuildInputs = [ go-simplejson go-snappystream ];
    };
  
    go-options = buildFromGitHub {
      rev    = "896a539cd709f4f39d787562d1583c016ce7517e";
      owner  = "mreiferson";
      repo   = "go-options";
      sha256 = "0hg0n5grcjcj5719rqchz0plp39wfk3znqxw8y354k4jwsqwmn17";
    };
  
    go-querystring = buildFromGitHub {
      rev    = "547ef5ac979778feb2f760cdb5f4eae1a2207b86";
      owner  = "google";
      repo   = "go-querystring";
      sha256 = "00ani7fhydcmlsm3n93nmj1hcqp2wmzvihnb1gdzynif1hw0530y";
    };
  
    go-radix = buildFromGitHub {
      rev    = "0bab926c3433cfd6490c6d3c504a7b471362390c";
      owner  = "armon";
      repo   = "go-radix";
      sha256 = "0llq96lxh7p9426hjii8k42kq0cp1hflawh1kjwhbmi5g0jrq04d";
    };
  
    junegunn.go-runewidth = buildGoPackage rec {
  