A low-level binding crate for Rust that moves in lockstop with BoringSSL. BoringSSL explicitly does not have a stable ABI, bssl-sys is the solution for preventing subtle-memory corruption bugs due to version skew.
bssl-sys uses bindgen as part of the cmake build process to generate Rust compatibility shims for the targeted platform. It is important to generate it for the correct platform because bindgen uses LLVM information for alignment which varies depending on architecture. These files are then packaged into a Rust crate.
Build boringssl with -DRUST_BINDINGS=<rust-triple> and ensure that you have bindgen installed.
The rust-triple option should be one of the supported targets at https://doc.rust-lang.org/nightly/rustc/platform-support.html.