From f00afb9bb8b5356690e2a785d14aa89995c96f50 Mon Sep 17 00:00:00 2001
From: Lars Ingebrigtsen <larsi@gnus.org>
Date: Fri, 5 Feb 2021 13:08:50 +0100
Subject: [PATCH] Fontize more automatic variables in makefile-gmake-mode

* lisp/progmodes/make-mode.el (makefile-gmake-font-lock-keywords):
Fontize the $ in more automatic variables (bug#27842).
---
 lisp/progmodes/make-mode.el | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lisp/progmodes/make-mode.el b/lisp/progmodes/make-mode.el
index a0e09f51ce3..e382d6edcd2 100644
--- a/lisp/progmodes/make-mode.el
+++ b/lisp/progmodes/make-mode.el
@@ -435,6 +435,9 @@ not be enclosed in { } or ( )."
    '("[^$]\\(\\$[({][@%*][DF][})]\\)"
      1 'makefile-targets append)
 
+   ;; Automatic variables.
+   '("[^$]\\(\\$[@%*?+^|]\\)" 1 'makefile-targets append)
+
    ;; $(function ...) ${function ...}
    '("[^$]\\$[({]\\([-a-zA-Z0-9_.]+\\s \\)"
      1 font-lock-function-name-face prepend)
-- 
2.39.2