🚀 go-pugleaf

Here's a patch to c++-mode.el that makes all the c++-mode variables that
are likely to interfere with other modes buffer-local.  This fixes a
problem I was having where indent-line-function was being globally set to
c++-indent-line, even (for instance) in mail buffers, and causing bizarre
auto-fill behavior.

-- Gary Oberbrunner

=============================================================================

diff -c c++-mode.el.~3~ c++-mode.el
*** c++-mode.el.~3~     Thu May 30 15:50:11 1991
--- c++-mode.el Thu Oct 10 15:04:34 1991
***************
*** 4,11 ****
  ;; Done by fairly faithful modification of:
  ;; c-mode.el, Copyright (C) 1985 Richard M. Stallman.
  ;;
! ;; Last modified on Wed Jan 23 20:21:34 1991 by weikart
  ;;
  ;; Jan, 1991 (Chris Weikart, weikart@prl.dec.com)
  ;;   In function calculate-c++-indent, added check for adding
  ;;     c-continued-brace-offset after c-continued-statement-offset
--- 4,15 ----
  ;; Done by fairly faithful modification of:
  ;; c-mode.el, Copyright (C) 1985 Richard M. Stallman.
  ;;
! ;; Last modified on Thu Oct 10 1991 by garyo
  ;;
+ ;; Oct, 1991 (Gary Oberbrunner, garyo@think.com)
+ ;;   In function c++-mode, made all local variables buffer-local to
+ ;;     avoid changing variable values in other buffers.
+ ;;
  ;; Jan, 1991 (Chris Weikart, weikart@prl.dec.com)
  ;;   In function calculate-c++-indent, added check for adding
  ;;     c-continued-brace-offset after c-continued-statement-offset
***************
*** 199,204 ****
--- 203,216 ----
    (kill-all-local-variables)
    (use-local-map c++-mode-map)
    (set-syntax-table c++-mode-syntax-table)
+   (make-local-variable 'mode-name)
+   (make-local-variable 'indent-line-function)
+   (make-local-variable 'comment-start)
+   (make-local-variable 'comment-end)
+   (make-local-variable 'comment-column)
+   (make-local-variable 'comment-start-skip)
+   (make-local-variable 'comment-indent-hook)
+   (make-local-variable 'local-abbrev-table)
    (setq major-mode 'c++-mode
        mode-name "C++"
        indent-line-function 'c++-indent-line