0e272de69f
This commit switches the default build system for Rust from the makefiles to rustbuild. The rustbuild build system has been in development for almost a year now and has become quite mature over time. This commit is an implementation of the proposal on [internals] which slates deletion of the makefiles on 2016-01-02. [internals]: https://internals.rust-lang.org/t/proposal-for-promoting-rustbuild-to-official-status/4368 This commit also updates various documentation in `README.md`, `CONTRIBUTING.md`, `src/bootstrap/README.md`, and throughout the source code of rustbuild itself. Closes #37858
This directory currently contains some LLVM support code. This will generally be sent upstream to LLVM in time; for now it lives here. NOTE: the LLVM C++ ABI is subject to between-version breakage and must *never* be exposed to Rust. To allow for easy auditing of that, all Rust-exposed types must be typedef-ed as "LLVMXyz", or "LLVMRustXyz" if they were defined here. Functions that return a failure status and leave the error in the LLVM last error should return an LLVMRustResult rather than an int or anything to avoid confusion. When translating enums, add a single `Other` variant as the first one to allow for new variants to be added. It should abort when used as an input. All other types must not be typedef-ed as such.