We at JuliaComputing have resurrected the LLVM CBackend project and given it support for Julia's IR. This lets us output C89 code as the backend from Julia. For more details, see our latest blog post announcing the open source publication of this work:
http://juliacomputing.com/blog/2016/03/10/j2c-announcement.html -jameson *Julia Computing carried out this work under contract from the Johns Hopkins University Applied Physics Laboratory (JHU APL) for the Federal Aviation Administration (FAA) to support its Airborne Collision Avoidance System X (ACAS X) program.*
