anchor.diff:      postFixup = ''
         wrapPythonPrograms
         wrapProgram $out/bin/ceph-mgr --prefix PYTHONPATH ":" "$(toPythonPath ${placeholder "out"}):$(toPythonPath ${ceph-python-env})"
  +
  +      # Test that ceph-volume exists since the build system has a tendency to
  +      # silently drop it with misconfigurations.
  +      test -f $out/bin/ceph-volume
       '';
   
       enableParallelBuilding = true;
  
positive.code: 
        # for pybind/rgw to find internal dep
        export LD_LIBRARY_PATH="$PWD/build/lib:$LD_LIBRARY_PATH"
        # install target needs to be in PYTHONPATH for "*.pth support" check to succeed
  
        patchShebangs src/script src/spdk src/test src/tools
      '';
  
negative.code:     ps.six
      ps.pyyaml
    ]);
    sitePackages = ceph-python-env.python.sitePackages;
  
    version = "14.2.6";
  in rec {
  