Or a compile server / incremental compilation. Tom Tromey worked on supporting this in GCC years ago, and blogged about the roadblocks that he met on the way. I

Or a compile server / incremental compilation. Tom Tromey worked on supporting this in GCC years ago, and blogged about the roadblocks that he met on the way. I don't remember the details, but eventually the project was abandoned. It might still be interesting to read through this stuff--throw "tromey gcc compile server" at a search engine and see what comes up.