emacs-28 c95a34c960: * src/macfont.m (macfont_open): Initialize font->space_width. (Bug#56808)

[YAMAMOTO Mitsuharu]

branch: emacs-28
commit c95a34c96013aaba1cdf2166c4a1d0e2c5f3de6a
Author: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
Commit: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>

    * src/macfont.m (macfont_open): Initialize font->space_width.  (Bug#56808)
---
 src/macfont.m | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/macfont.m b/src/macfont.m
index e3dab1c42e..b30c3c9763 100644
--- a/src/macfont.m
+++ b/src/macfont.m
@@ -2628,6 +2628,9 @@ macfont_open (struct frame * f, Lisp_Object entity, int 
pixel_size)
   font->pixel_size = size;
   font->driver = &macfont_driver;
   font->encoding_charset = font->repertory_charset = -1;
+  /* Clear font->space_width so macfont_monospace_width_multiplier may
+     not be confused by an uninitialized value.  */
+  font->space_width = 0;
 
   block_input ();