make: "cond-func-defined.mk" line 23: Missing closing parenthesis for defined()
make: "cond-func-defined.mk" line 33: Missing closing parenthesis for defined()
make: "cond-func-defined.mk" line 45: In .for loops, variable expressions for the loop variables are
make: "cond-func-defined.mk" line 46: substituted at evaluation time.  There is no actual variable
make: "cond-func-defined.mk" line 47: involved, even if it feels like it.
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1