anchor.diff:    preConfigure = ''
       export BORG_OPENSSL_PREFIX="${openssl.dev}"
       export BORG_LZ4_PREFIX="${lz4.dev}"
  +    export BORG_LIBB2_PREFIX="${libb2}"
     '';
   
     makeWrapperArgs = [
  
positive.code:     sphinx guzzle_sphinx_theme
    ];
    buildInputs = [
      lz4 openssl python3Packages.setuptools_scm
    ] ++ stdenv.lib.optionals stdenv.isLinux [ acl ];
    propagatedBuildInputs = with python3Packages; [
      cython msgpack-python
  
negative.code: { stdenv, python3Packages, acl, libb2, lz4, openssl, openssh }:
  
  python3Packages.buildPythonApplication rec {
    pname = "borgbackup";
  