grf {
    grfid: "test";
    name: string(STR_REGRESSION_NAME);
    desc: string(STR_REGRESSION_DESC);
    version: 0;
    min_compatible_version: 0;
}

// let this grf override some grf with GRFID "ABCD"
engine_override("test", "ABCD");

// also override some other grf, this time not setting our own grfid explicitly
engine_override(0x12345678);
