1make: "cond-op-and.mk" line 37: Malformed conditional (0 || (${DEF} && ${UNDEF})) 2make: "cond-op-and.mk" line 42: Malformed conditional (0 || (${UNDEF} && ${UNDEF})) 3make: "cond-op-and.mk" line 45: Malformed conditional (0 || (!${UNDEF} && ${UNDEF})) 4make: "cond-op-and.mk" line 75: Malformed conditional (0 &&& 0) 5make: Fatal errors encountered -- cannot continue 6make: stopped in unit-tests 7exit status 1 8