(makefile-font-lock-keywords): Highlight

automatic variable references enclosed in parens and optionally
suffixed by F or D.

diff --git a/lisp/progmodes/make-mode.el b/lisp/progmodes/make-mode.el
index f3255fc5e49b039a7816fad80e96157e344ef692..62cbdbb291d350d0692c1c26c63eb35e4c0dc4bb 100644 (file)
--- a/lisp/progmodes/make-mode.el
+++ b/lisp/progmodes/make-mode.el
@@ -273,6 +273,7 @@ not be enclosed in { } or ( )."
 
    ;; Automatic variable references.
    '("\\$\\([@%<?^+*]\\)" 1 font-lock-reference-face prepend)
+   '("\\$[({]\\([@%<?^+*][FD]?\\)[}):]" 1 font-lock-reference-face prepend)
 
    ;; Fontify conditionals and includes.
    ;; Note that plain `if' is an automake conditional, and not a bug.