1make: Bad conditional expression ` == "empty"' in == "empty"?oops:ok 2make: "cond2.mk" line 13: Malformed conditional ({TEST_TYPO} == "Ok") 3TEST_NOT_SET is empty or not defined 4make: "cond2.mk" line 20: Malformed conditional (${TEST_NOT_SET} == "empty") 5make: Fatal errors encountered -- cannot continue 6make: stopped in unit-tests 7exit status 1 8