that transient-mark-mode will highlight last char too.
(setq col (match-string-no-properties col))
(setq col (- (string-to-number col) compilation-first-column)))
(if (and end-col (setq end-col (match-string-no-properties end-col)))
- (setq end-col (- (string-to-number end-col) compilation-first-column))
+ (setq end-col (- (string-to-number end-col) compilation-first-column -1))
(if end-line (setq end-col -1)))
(if (consp type) ; not a static type, check what it is.
(setq type (or (and (car type) (match-end (car type)) 1)