1make: "opt-debug-lint.mk" line 20: Variable "X" is undefined 2make: "opt-debug-lint.mk" line 43: Variable "UNDEF" is undefined 3make: "opt-debug-lint.mk" line 65: Missing delimiter ':' after modifier "L" 4 while evaluating variable "value" with value "value" 5make: "opt-debug-lint.mk" line 65: Missing delimiter ':' after modifier "P" 6 while evaluating variable "value" with value "value" 7make: "opt-debug-lint.mk" line 74: Unknown modifier "${" 8 while evaluating variable "value" with value "" 9make: Fatal errors encountered -- cannot continue 10make: stopped in unit-tests 11exit status 1 12