make: opt-debug-lint.mk:20: Variable "X" is undefined
make: opt-debug-lint.mk:43: Variable "UNDEF" is undefined
make: opt-debug-lint.mk:65: Missing delimiter ':' after modifier "L"
	while evaluating variable "value" with value "value"
make: opt-debug-lint.mk:65: Missing delimiter ':' after modifier "P"
	while evaluating variable "value" with value "value"
make: opt-debug-lint.mk:74: Unknown modifier ":${"
	while evaluating variable "value" with value ""
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1