1 make: "cond-op-parentheses.mk" line 13: Parentheses can be nested at least to depth 112. 2 make: "cond-op-parentheses.mk" line 19: Malformed conditional (() 3 make: "cond-op-parentheses.mk" line 29: Malformed conditional ()) 4 make: Fatal errors encountered -- cannot continue 5 make: stopped in unit-tests 6 exit status 1 7