make: "cond-token-string.mk" line 14: Unknown modifier ":Z"
	while evaluating "${:Uvalue:Z}"" with value "value"
make: "cond-token-string.mk" line 24: xvalue is not defined.
make: "cond-token-string.mk" line 31: Malformed conditional 'x${:Uvalue} == ""'
make: "cond-token-string.mk" line 41: Expected.
CondParser_Eval: "UNDEF"
make: "cond-token-string.mk" line 51: The string literal "UNDEF" is not empty.
CondParser_Eval: " "
make: "cond-token-string.mk" line 60: The string literal " " is not empty, even though it consists of whitespace only.
CondParser_Eval: "${UNDEF}"
make: "cond-token-string.mk" line 70: An undefined variable in quotes expands to an empty string, which then evaluates to false.
CondParser_Eval: "${:Uvalue}"
make: "cond-token-string.mk" line 76: A nonempty expression evaluates to true.
CondParser_Eval: "${:U}"
make: "cond-token-string.mk" line 85: An empty variable evaluates to false.
CondParser_Eval: ("${VAR}")
CondParser_Eval: "quoted" == quoted
Comparing "quoted" == "quoted"
make: Fatal errors encountered -- cannot continue
make: stopped making "all" in unit-tests
exit status 1