1make: var-op-expand.mk:274: Unknown modifier ":s,value,replaced," 2 while evaluating variable "later" with value "" 3 while evaluating variable "indirect" with value "${later:s,value,replaced,} ok ${later:value=sysv}" 4make: var-op-expand.mk:278: warning: XXX Neither branch should be taken. 5make: var-op-expand.mk:283: Unknown modifier ":s,value,replaced," 6 while evaluating variable "later" with value "lowercase-value" 7 while evaluating variable "indirect" with value "${later:s,value,replaced,} ok ${later:value=sysv}" 8make: var-op-expand.mk:285: warning: XXX Neither branch should be taken. 9make: Fatal errors encountered -- cannot continue 10make: stopped making "all" in unit-tests 11exit status 1 12