1 make: "cond-undef-lint.mk" line 23: Variable "UNDEF" is undefined
2 make: "cond-undef-lint.mk" line 38: Variable "UNDEF" is undefined
3 make: "cond-undef-lint.mk" line 38: Variable "VAR." is undefined
4 make: "cond-undef-lint.mk" line 45: Variable "VAR.defined" is undefined
5 make: Fatal errors encountered -- cannot continue
6 make: stopped in unit-tests