make: var-op-expand.mk:274: Unknown modifier ":s,value,replaced,"
	while evaluating variable "later" with value ""
	while evaluating variable "indirect" with value "${later:s,value,replaced,} ok ${later:value=sysv}"
make: var-op-expand.mk:278: warning: XXX Neither branch should be taken.
make: var-op-expand.mk:283: Unknown modifier ":s,value,replaced,"
	while evaluating variable "later" with value "lowercase-value"
	while evaluating variable "indirect" with value "${later:s,value,replaced,} ok ${later:value=sysv}"
make: var-op-expand.mk:285: warning: XXX Neither branch should be taken.
make: var-op-expand.mk:297: Bad condition
	while evaluating condition " < 0 "
make: var-op-expand.mk:297: Unknown modifier ":Z1"
	while parsing "${:Z1}:${:Z2}}"
	while evaluating then-branch of condition " < 0 "
make: var-op-expand.mk:297: Unknown modifier ":Z2"
	while parsing "${:Z2}}"
	while evaluating else-branch of condition " < 0 "
make: var-op-expand.mk:297: Unknown modifier ":Z1"
	while evaluating "${:Z1}:${:Z2}}" with value ""
make: var-op-expand.mk:297: Unknown modifier ":Z2"
	while evaluating "${:Z2}}" with value ""
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1