Fix filling for when filladapt mode is enabled.

2 files changed, 6 insertions, 5 deletions

diff --git a/lisp/progmodes/cc-cmds.el b/lisp/progmodes/cc-cmds.el
index 76b9f304164..509bb203f78 100644
--- a/lisp/progmodes/cc-cmds.el
+++ b/lisp/progmodes/cc-cmds.el
@@ -4382,11 +4382,8 @@ Optional prefix ARG means justify paragraph as well."
   (let ((fill-paragraph-function
          ;; Avoid infinite recursion.
          (if (not (eq fill-paragraph-function 'c-fill-paragraph))
-             fill-paragraph-function))
-        (start-point (point-marker)))
-    (c-mask-paragraph
-     t nil (lambda () (fill-region-as-paragraph (point-min) (point-max) arg)))
-    (goto-char start-point))
+             fill-paragraph-function)))
+    (c-mask-paragraph t nil 'fill-paragraph arg))
   ;; Always return t.  This has the effect that if filling isn't done
   ;; above, it isn't done at all, and it's therefore effectively
   ;; disabled in normal code.
diff --git a/lisp/progmodes/cc-mode.el b/lisp/progmodes/cc-mode.el
index b74d878516d..0c86b68f1d9 100644
--- a/lisp/progmodes/cc-mode.el
+++ b/lisp/progmodes/cc-mode.el
@@ -490,6 +490,7 @@ that requires a literal mode spec at compile time."
   (make-local-variable 'paragraph-ignore-fill-prefix)
   (make-local-variable 'adaptive-fill-mode)
   (make-local-variable 'adaptive-fill-regexp)
+  (make-local-variable 'fill-paragraph-handle-comment)
 
   ;; now set their values
   (set (make-local-variable 'parse-sexp-ignore-comments) t)
@@ -500,6 +501,9 @@ that requires a literal mode spec at compile time."
   (set (make-local-variable 'comment-line-break-function)
        'c-indent-new-comment-line)
 
+  ;; For the benefit of adaptive file, which otherwise mis-fills.
+  (setq fill-paragraph-handle-comment nil)
+
   ;; Install `c-fill-paragraph' on `fill-paragraph-function' so that a
   ;; direct call to `fill-paragraph' behaves better.  This still
   ;; doesn't work with filladapt but it's better than nothing.