1make: "cond-token-string.mk" line 15: Unknown modifier "Z" 2make: "cond-token-string.mk" line 15: Malformed conditional ("" != "${:Uvalue:Z}") 3make: "cond-token-string.mk" line 25: xvalue is not defined. 4make: "cond-token-string.mk" line 32: Malformed conditional (x${:Uvalue} == "") 5make: "cond-token-string.mk" line 42: Expected. 6CondParser_Eval: "UNDEF" 7make: "cond-token-string.mk" line 52: The string literal "UNDEF" is not empty. 8CondParser_Eval: " " 9make: "cond-token-string.mk" line 61: The string literal " " is not empty, even though it consists of whitespace only. 10CondParser_Eval: "${UNDEF}" 11make: "cond-token-string.mk" line 71: An undefined variable in quotes expands to an empty string, which then evaluates to false. 12CondParser_Eval: "${:Uvalue}" 13make: "cond-token-string.mk" line 77: A nonempty expression evaluates to true. 14CondParser_Eval: "${:U}" 15make: "cond-token-string.mk" line 86: An empty variable evaluates to false. 16CondParser_Eval: ("${VAR}") 17CondParser_Eval: "quoted" == quoted 18Comparing "quoted" == "quoted" 19make: Fatal errors encountered -- cannot continue 20make: stopped in unit-tests 21exit status 1 22