make: "directive-undef.mk" line 29: The .undef directive requires an argument make: "directive-undef.mk" line 86: Unknown modifier "Z" make: "directive-undef.mk" line 102: warning: UT_EXPORTED is still listed in .MAKE.EXPORTED even though spaceit is not exported anymore. make: Fatal errors encountered -- cannot continue make: stopped in unit-tests exit status 1