Lots of rust software has dependencies on non-rust software and build scripts that need various things to be in the path or in other environment variables. For

Lots of rust software has dependencies on non-rust software and build scripts that need various things to be in the path or in other environment variables. For example, anything using bindgen needs libclang, and to make matters worse, doesn't look in the conventional LIBRARY_PATH but requires a special environment variable LIBCLANG_PATH.