crates/nix/module_block.bp.fragment

    // Manually translated build.rs cfg aliases.
    target: {
        host_linux: {
            cfgs: [
                "linux",
                "linux_android",
            ],
        },
        android: {
            cfgs: [
                "android",
                "linux_android",
            ],
        },
        darwin: {
            cfgs: [
                "apple_targets",
                "bsd",
            ],
        },
    }