+check :: check-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)
+%.5.cols : %.5; $(check_man)
+%.7.cols : %.7; $(check_man)
+%.8.cols : %.8; $(check_man)
+
+check-man :: $(addsuffix .cols, $(manpages))
+