File emacs-libX11-boo1175028.patch of Package emacs.21200

From 72c5f71cd45c860299950cd058d8e13b87375741 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gr=C3=A9gory=20Mouni=C3=A9?= <Gregory.Mounie@imag.fr>
Date: Sun, 2 Aug 2020 15:56:33 +0200
Subject: [PATCH] Avoid segfaults if XIM is set but not xim_styles

Emacs segfaults at the X11 initialization if XIM is set
and xim_styles is NULL.  This patch avoids the crash.
* src/xfns.c: Check also if FRAME_X_XIM_STYLES(f) is NULL.
(Bug#42676)  (Bug#42673)  (Bug#42677)

Copyright-paperwork-exempt: yes
---
 src/xfns.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- src/xfns.c
+++ src/xfns.c	2020-08-11 08:26:54.912255519 +0000
@@ -2283,7 +2283,7 @@ create_frame_xic (struct frame *f)
     goto out;
 
   xim = FRAME_X_XIM (f);
-  if (!xim)
+  if (!xim || ! FRAME_X_XIM_STYLES(f))
     goto out;
 
   /* Determine XIC style.  */