Function cxx_build::bridges

pub fn bridges(
    rust_source_files: impl IntoIterator<Item = impl AsRef<Path>>
) -> Build

cxx_build::bridge but for when more than one file contains a #[cxx::bridge] module.

let source_files = vec!["src/main.rs", "src/path/to/other.rs"];
cxx_build::bridges(source_files)
    .file("../demo-cxx/demo.cc")
    .flag("-std=c++11")
    .compile("cxxbridge-demo");