make: varmod-edge.mk:60: Unclosed expression, expecting '}' for modifier "U*)"
	while evaluating "${:U*)" with value "*)"
	while evaluating variable "INP" with value "(parentheses)"
	while evaluating variable "MOD" with value "${INP:M${:U*)}}"
make: varmod-edge.mk:88: Unfinished character list in pattern '[[' of modifier ':M'
	while evaluating variable "INP" with value "[ [[ [[["
	while evaluating variable "MOD" with value "${INP:M${:U[[}}"
make: varmod-edge.mk:178: Unfinished modifier after "a\=b}", expecting "="
	while evaluating variable "INP" with value "file.c file..."
	while evaluating variable "MOD" with value "${INP:a\=b}"
make: varmod-edge.mk:193: Unknown modifier "::"
	while evaluating variable "INP" with value "value"
	while evaluating variable "MOD" with value "${INP::::}"
make: varmod-edge.mk:199: Unknown modifier ":Z"
	while evaluating "${:Z}" with value ""
make: varmod-edge.mk:212: Unfinished modifier after "}", expecting ","
	while evaluating "${:S,}" with value ""
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1