make: "cond-op-or.mk" line 47: Malformed conditional (1 && (!${DEF} || ${UNDEF}))
make: "cond-op-or.mk" line 50: Malformed conditional (1 && (${UNDEF} || ${UNDEF}))
make: "cond-op-or.mk" line 53: Malformed conditional (1 && (!${UNDEF} || ${UNDEF}))
make: "cond-op-or.mk" line 75: Malformed conditional (0 ||| 0)
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1