if (target_os == "") { target_os = host_os } if (target_cpu == "") { target_cpu = host_cpu } if (current_cpu == "") { current_cpu = target_cpu } if (current_os == "") { current_os = target_os } _configs = [ "//build:rust_defaults" ] set_defaults("executable") { configs = _configs } set_defaults("rust_library") { configs = _configs } set_default_toolchain("//build:rust")