Speed up redisplay of HELLO

* etc/HELLO: Set 'inhibit-compacting-font-caches' non-nil
locally.  (Bug#36032)

* lisp/files.el: Add 'inhibit-compacting-font-caches' to the
list of built-in variables for which we set up
'safe-local-variable' properties.

2 files changed, 2 insertions, 0 deletions

diff --git a/etc/HELLO b/etc/HELLO
index ae52e94b065..f424a2ab8aa 100644
--- a/etc/HELLO
+++ b/etc/HELLO
@@ -96,4 +96,5 @@ along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 ;;; tab-width: 32
 ;;; bidi-display-reordering: t
 ;;; coding: iso-2022-7bit
+;;; inhibit-compacting-font-caches: t
 ;;; End:
diff --git a/lisp/files.el b/lisp/files.el
index f3b502095dd..2187eba1a42 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -3233,6 +3233,7 @@ asking you for confirmation."
            (fill-column             . integerp) ;; C source code
            (indent-tabs-mode        . booleanp) ;; C source code
            (left-margin             . integerp) ;; C source code
+           (inhibit-compacting-font-caches . booleanp) ;; C source code
            (no-update-autoloads     . booleanp)
            (lexical-binding      . booleanp)      ;; C source code
            (tab-width               . integerp)   ;; C source code