Albronze is a Saltwater spiritual successor/fork, which aims to provide a spec-compliant preprocessor (for use cases such as bindgen), as well as a full C compiler or transpiler.
Albronze is in the very early stages of development, and is not expected to be suitable for production use anytime soon. The preprocessor is slightly further along, and will be the main focus of current development work.
Albronze is currently licensed under BSD-3 clause, but I am open to relicensing it.