Well while Clang is open source and permissively licenced it's not exactly as it's a code donation aimed at FreeBSD. Apple needed a compiler frontend/backend as

Well while Clang is open source and permissively licenced it's not exactly as it's a code donation aimed at FreeBSD. Apple needed a compiler frontend/backend as they were stuck with a very old GCC 4.2.1 due to them not accepting GPLv3, thus they hired Chris Lattner of LLVM fame and started working on Clang (which turned out great, now we have two excellent open source toolchains competing which benefits all end users). Likely FreeBSD is very thankful for the existance of a first-class non-GPL compiler frontend/backend toolchain like Clang/LLVM as it is in line with their licence philosophy, but that won't help if they can't generate enough funds to keep the project going. Having Apple contributing some money back (it's not as if they are strapped for cash) to the project from where they lifted a good chunk of code would not seem out of place. OT: yxhuvud, är du också svensk?