make: Bad conditional expression ` == "empty"' in  == "empty"?oops:ok
make: "cond2.mk" line 13: Malformed conditional ({TEST_TYPO} == "Ok")
TEST_NOT_SET is empty or not defined
make: "cond2.mk" line 20: Malformed conditional (${TEST_NOT_SET} == "empty")
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1