GNU make: inverting sub-process success?

I've a make file for a scripted system, with a lot of tests which should pass. Each test is a separate call to the scripting application: ``` #---------------------------------------------------------------------------- # run test scripts in the module::test #---------------------------------------------------------------------------- scripted_tests: bin/kin modules/test/actor_equality.kin modules/test/actor_fibre.kin ... bin/kin modules/test/actor_equality.kin bin/kin modules/test/actor_fibre.kin ... ``` Which is fine. I also have some similar tests which should return failure. I know that `-` will ignore the return status, but there must be something simple to invert the return status so I can run ``` #---------------------------------------------------------------------------- # run test scripts in the module::test::errors #---------------------------------------------------------------------------- inverse_tests: bin/kin modules/test/error/bad_function.kin ... not bin/kin modules/test/error/bad_function.kin ... ```