# n.b. not sure if our usage of man(1) is portable or not, so not
# enabled by default "check" target:
# check :: check-man
-check_man = @echo CHECK80 $<;COLS=80 $(MAN) ./$^ | \
+check_man = @echo CHECK80 $<;COLUMNS=80 $(MAN) ./$^ | \
$(AWK) '{gsub(/\b./,"")}length>80{print;err=1}END{exit(err)}' >&2
%.1.cols : %.1; $(check_man)