Crate rust_usd_build 

Build-script helpers for downstream crates that link rust-usd.

rust-usd’s own build.rs emits the rpath args its examples need at runtime, but cargo:rustc-link-arg only applies to the immediate target. Downstream binaries / examples have to re-emit the same rpaths or the dynamic loader can’t find libpxr_*.dylib at startup.

Add this crate as a build-dependency and call emit_runtime_rpath from your own build.rs:

fn main() {
    rust_usd_build::emit_runtime_rpath();
}

It reads the same environment variables rust-usd’s build script does and is a no-op if none of them are set, so consumers can leave the call in unconditionally even on CI machines without a USD install.

Functions

emit_runtime_rpath

Emit the cargo:rustc-link-arg directives needed for downstream executables to find OpenUSD’s dylibs at runtime via @rpath.