make: "cond-func-defined.mk" line 24: Missing closing parenthesis for defined() make: "cond-func-defined.mk" line 34: Missing closing parenthesis for defined() make: "cond-func-defined.mk" line 47: In .for loops, variable expressions for the loop variables are make: "cond-func-defined.mk" line 49: substituted at evaluation time. There is no actual variable make: "cond-func-defined.mk" line 51: involved, even if it feels like it. make: Fatal errors encountered -- cannot continue make: stopped in unit-tests exit status 1