(makefile-font-lock-syntactic-keywords): New variable.

(makefile-mode): Use it for value of font-lock-syntactic-keywords.

1 files changed, 10 insertions, 1 deletions

diff --git a/lisp/progmodes/make-mode.el b/lisp/progmodes/make-mode.el
index 4ffdfdef011..f44bca814cc 100644
--- a/lisp/progmodes/make-mode.el
+++ b/lisp/progmodes/make-mode.el
@@ -300,6 +300,11 @@ not be enclosed in { } or ( )."
    ;; They can make a tab fail to be effective.
    '("^\\( +\\)\t" 1 makefile-space-face)))
 
+(defconst makefile-font-lock-syntactic-keywords
+  (list
+   ;; Change the syntax of a quoted newline so that it does not end a comment.
+   '("\\\\\n" 0 " ")))
+
 (defvar makefile-imenu-generic-expression
   (list
    (list "Dependencies" makefile-dependency-regex  1)
@@ -588,7 +593,11 @@ Makefile mode can be configured by modifying the following variables:
         ;; SYNTAX-BEGIN set to backward-paragraph to avoid slow-down
         ;; near the end of a large buffer, due to parse-partial-sexp's
         ;; trying to parse all the way till the beginning of buffer.
-        '(makefile-font-lock-keywords nil nil ((?$ . ".")) backward-paragraph))
+        '(makefile-font-lock-keywords
+          nil nil
+          ((?$ . "."))
+          backward-paragraph
+          (font-lock-syntactic-keywords . makefile-font-lock-syntactic-keywords)))
 
   ;; Add-log.
   (make-local-variable 'add-log-current-defun-function)