make: varmod-order.mk:14: Unknown modifier ":OX" while evaluating variable "WORDS" with value "one two three four five six seven eight nine ten" make: varmod-order.mk:17: Unknown modifier ":OxXX" while evaluating variable "WORDS" with value "one two three four five six seven eight nine ten" make: varmod-order.mk:20: Unclosed expression, expecting '}' for modifier "O" while evaluating variable "WORDS" with value "eight five four nine one seven six ten three two" make: varmod-order.mk:22: Unclosed expression, expecting '}' for modifier "On" while evaluating variable "NUMBERS" with value "1 2 3 4 5 6 7 8 9 10" make: varmod-order.mk:24: Unclosed expression, expecting '}' for modifier "Onr" while evaluating variable "NUMBERS" with value "10 9 8 7 6 5 4 3 2 1" make: varmod-order.mk:30: Unknown modifier ":Oxn" while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2" make: varmod-order.mk:39: Unknown modifier ":On_typo" while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2" make: varmod-order.mk:48: Unknown modifier ":Onr_typo" while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2" make: varmod-order.mk:57: Unknown modifier ":Orn_typo" while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2" make: varmod-order.mk:68: Unknown modifier ":Onn" while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2" make: varmod-order.mk:77: Unknown modifier ":Onrr" while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2" make: varmod-order.mk:86: Unknown modifier ":Orrn" while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2" make: Fatal errors encountered -- cannot continue make: stopped making "all" in unit-tests exit status 1