Compilation works on Linux and OSX, but it's so called "works for me",
so more tweaks are likely required.

There's number of known TODOs still:

- Windows build is not supported at this moment.
- Logging option is exposed as an option but wouldn't work now.
- Installation target is not tested and would need more work.
- Compiled .oso files are not put to the final location, so manual copy is
  required for now.

  Ideally for OSL we need to have shade/cycles/shader, to match FSH.

Consult the README file for instructions.