master efd3e78258: Fix NS port warnings with GCC 12

[Po Lu]

branch: master
commit efd3e78258c4d5238b58b59d7fdbfe1f141bbfd2
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Fix NS port warnings with GCC 12
    
    * src/nsterm.m (ns_draw_glyphless_glyph_string_foreground):
    Clear s->char2b after function returns.
---
 src/nsterm.m | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/nsterm.m b/src/nsterm.m
index a1cbbff1cc..7fbfcf8c6d 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -4180,6 +4180,10 @@ ns_draw_glyphless_glyph_string_foreground (struct 
glyph_string *s)
                      YES, YES);
       x += glyph->pixel_width;
    }
+
+  /* GCC 12 complains even though nothing ever uses s->char2b after
+     this function returns.  */
+  s->char2b = NULL;
 }
 
 static void