1make: "varparse-errors.mk" line 38: Unknown modifier "Z" 2make: "varparse-errors.mk" line 46: Unknown modifier "Z" 3make: Bad modifier ":OX" for variable "" 4make: "varparse-errors.mk" line 68: Undefined variable "${:U:OX" 5make: Bad modifier ":OX" for variable "" 6make: Bad modifier ":OX" for variable "" 7make: "varparse-errors.mk" line 68: Undefined variable "${:U:OX" 8make: Bad modifier ":OX" for variable "" 9make: Fatal errors encountered -- cannot continue 10make: stopped in unit-tests 11exit status 1 12