A stub standard library for Rust. It will provide a baseline level of support for freestanding Rust, and extended functionality based on the availability of the standard C library, POSIX and OS-specific features.

The core module is meant to be directly included as a module in a top-level crate making use of the #[no_std] attribute. It will make no attempt at working outside of that use case.

Configuration:

• If the C standard library is available, pass --cfg libc to rustc