mbed-os-hardfp/tools/test/config/requires_omit_lib/mbed_app.json

{
    "requires" : ["lib1"],
    "target_overrides": {
        "should_fail": {
            "lib2.test": "GOOD"
        },
        "should_pass": {
            "lib1.test": "GOOD"
        }
    }
}