Merge "Floss: Fix build"

    let target_dir = std::env::var_os("CARGO_TARGET_DIR").unwrap();

    println!("cargo:rustc-link-search=native={}", target_dir.into_string().unwrap());

    // Clang requires -lc++ instead of -lstdc++

    println!("cargo:rustc-link-lib=c++");

    // When cross-compiling, pkg-config is looking for dbus at the host libdir instead of the

    // sysroot. Adding this dependency here forces the linker to include the current sysroot's

    // libdir and fixes the build issues.