make: Regex compilation error: (details omitted)
	while evaluating "${:Uword1 word2:C,****,____,g:C,word,____,:Q}." with value "word1 word2"
	in command "@echo $@: ${:Uword1 word2:C,****,____,g:C,word,____,:Q}."
	in target "mod-regex-compile-error" from varmod-subst-regex.mk:154
make: No subexpression \1
	while evaluating "${:U1 23 456:C,..,\1\1,:Q}" with value "1 23 456"
	in command "@echo $@:11-missing:${:U1 23 456:C,..,\1\1,:Q}"
	in target "mod-regex-limits-1" from varmod-subst-regex.mk:159
make: No subexpression \1
	while evaluating "${:U1 23 456:C,..,\1\1,:Q}" with value "1 23 456"
	in command "@echo $@:11-missing:${:U1 23 456:C,..,\1\1,:Q}"
	in target "mod-regex-limits-1" from varmod-subst-regex.mk:159
make: No subexpression \1
	while evaluating "${:U1 23 456:C,..,\1\1,:Q}" with value "1 23 456"
	in command "@echo $@:11-missing:${:U1 23 456:C,..,\1\1,:Q}"
	in target "mod-regex-limits-1" from varmod-subst-regex.mk:159
make: No subexpression \1
	while evaluating "${:U1 23 456:C,..,\1\1,:Q}" with value "1 23 456"
	in command "@echo $@:11-missing:${:U1 23 456:C,..,\1\1,:Q}"
	in target "mod-regex-limits-1" from varmod-subst-regex.mk:159
mod-regex-limits-2:11-ok:1 22 446
make: No subexpression \2
	while evaluating "${:U1 23 456:C,..,\2\2,:Q}" with value "1 23 456"
	in command "@echo $@:22-missing:${:U1 23 456:C,..,\2\2,:Q}"
	in target "mod-regex-limits-3" from varmod-subst-regex.mk:163
make: No subexpression \2
	while evaluating "${:U1 23 456:C,..,\2\2,:Q}" with value "1 23 456"
	in command "@echo $@:22-missing:${:U1 23 456:C,..,\2\2,:Q}"
	in target "mod-regex-limits-3" from varmod-subst-regex.mk:163
make: No subexpression \2
	while evaluating "${:U1 23 456:C,..,\2\2,:Q}" with value "1 23 456"
	in command "@echo $@:22-missing:${:U1 23 456:C,..,\2\2,:Q}"
	in target "mod-regex-limits-3" from varmod-subst-regex.mk:163
make: No subexpression \2
	while evaluating "${:U1 23 456:C,..,\2\2,:Q}" with value "1 23 456"
	in command "@echo $@:22-missing:${:U1 23 456:C,..,\2\2,:Q}"
	in target "mod-regex-limits-3" from varmod-subst-regex.mk:163
make: No subexpression \2
	while evaluating "${:U1 23 456:C,(.).,\2\2,:Q}" with value "1 23 456"
	in command "@echo $@:22-missing:${:U1 23 456:C,(.).,\2\2,:Q}"
	in target "mod-regex-limits-4" from varmod-subst-regex.mk:165
make: No subexpression \2
	while evaluating "${:U1 23 456:C,(.).,\2\2,:Q}" with value "1 23 456"
	in command "@echo $@:22-missing:${:U1 23 456:C,(.).,\2\2,:Q}"
	in target "mod-regex-limits-4" from varmod-subst-regex.mk:165
make: No subexpression \2
	while evaluating "${:U1 23 456:C,(.).,\2\2,:Q}" with value "1 23 456"
	in command "@echo $@:22-missing:${:U1 23 456:C,(.).,\2\2,:Q}"
	in target "mod-regex-limits-4" from varmod-subst-regex.mk:165
make: No subexpression \2
	while evaluating "${:U1 23 456:C,(.).,\2\2,:Q}" with value "1 23 456"
	in command "@echo $@:22-missing:${:U1 23 456:C,(.).,\2\2,:Q}"
	in target "mod-regex-limits-4" from varmod-subst-regex.mk:165
mod-regex-limits-5:22-ok:1 33 556
mod-regex-limits-6:capture:ihgfedcbaabcdefghijABCDEFGHIJa0a1a2rest
make: Regex compilation error: (details omitted)
	while evaluating variable "UNDEF" with value "value"
	in command "@echo $@: ${UNDEF:Uvalue:C,[,,}"
	in target "mod-regex-errors-1" from varmod-subst-regex.mk:174
make: Unknown modifier ":Z"
	while evaluating "${:U:Z}y,W}" with value ""
	while evaluating variable "word" with value "word"
	in command "@echo $@: ${word:L:C,.*,x${:U:Z}y,W}"
	in target "mod-regex-errors-2" from varmod-subst-regex.mk:179
unmatched-subexpression.ok: one one 2 3 5 8 one3 2one 34
make: No match for subexpression \2
unmatched-subexpression.1: ()()
make: No match for subexpression \2
unmatched-subexpression.1: ()()
make: No match for subexpression \1
unmatched-subexpression.2: ()()
unmatched-subexpression.3: 3
unmatched-subexpression.5: 5
unmatched-subexpression.8: 8
make: No match for subexpression \2
unmatched-subexpression.13: (3)()
make: No match for subexpression \1
unmatched-subexpression.21: ()(1)
unmatched-subexpression.34: 34
make: No match for subexpression \2
make: No match for subexpression \2
make: No match for subexpression \1
make: No match for subexpression \2
make: No match for subexpression \1
unmatched-subexpression.all: ()() ()() ()() 3 5 8 (3)() ()(1) 34
exit status 2

.