anchor.diff:  
     outputs = [ "bin" "man" "out" ];
   
  -  excludedPackages = "integration";
  +  excludedPackages = [ "integration" ];
   
  -  nativeBuildInputs = [ pkg-config (lib.getBin go-md2man) ];
  -  buildInputs = [ gpgme ] ++ lib.optionals stdenv.isLinux [ libgpgerror lvm2 btrfs-progs libselinux ];
  +  nativeBuildInputs = [ pkg-config go-md2man ];
  +  buildInputs = [ gpgme ]
  +  ++ stdenv.lib.optionals stdenv.isLinux [ libgpgerror lvm2 btrfs-progs libselinux ];
   
     buildFlagsArray = ''
       -ldflags=
  -    -X github.com/containers/skopeo/vendor/github.com/containers/image/v5/signature.systemDefaultPolicyPath=${defaultPolicyFile}
  -    -X github.com/containers/skopeo/vendor/github.com/containers/image/v5/internal/tmpdir.unixTempDirForBigFiles=/tmp
  -  '';
  -
  -  preBuild = ''
  -    export CGO_CFLAGS="$CFLAGS"
  -    export CGO_LDFLAGS="$LDFLAGS"
  +    -X ${vendorPath}/signature.systemDefaultPolicyPath=${defaultPolicyFile}
  +    -X ${vendorPath}/internal/tmpdir.unixTempDirForBigFiles=/tmp
     '';
   
     postBuild = ''
  
positive.code: { stdenv
  , lib
  , buildGoPackage
  , fetchFromGitHub
  , runCommand
  
negative.code: , libselinux
  , go-md2man
  }:
  
  let
    version = "0.2.0";
  