From b49f0f9b323d66056aa9cd88f9ca1a124037bf32 Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@redhat.com>
Date: Tue, 17 Aug 2021 16:04:40 -0400
Subject: xkb: Silence a warning from gcc 11
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I get this:

    In function ‘TryCopyStr’,
        inlined from ‘CopyISOLockArgs’ at ../xkb/xkbtext.c:875:9:
    ../xkb/xkbtext.c:720:13: warning: ‘tbuf’ may be used uninitialized [-Wmaybe-uninitialized]
      720 |             strcat(to, from);
          |             ^~~~~~~~~~~~~~~~
    ../xkb/xkbtext.c: In function ‘CopyISOLockArgs’:
    <built-in>: note: by argument 1 of type ‘const char *’ to ‘__builtin_strlen’ declared here
    ../xkb/xkbtext.c:871:10: note: ‘tbuf’ declared here
      871 |     char tbuf[64];
          |          ^~~~

Just initialize tbuf so it definitely works.
---
 xkb/xkbtext.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xkb/xkbtext.c b/xkb/xkbtext.c
index d2a2567fc..00a26c576 100644
--- a/xkb/xkbtext.c
+++ b/xkb/xkbtext.c
@@ -870,6 +870,7 @@ CopyISOLockArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
     XkbISOAction *act;
     char tbuf[64];
 
+    memset(tbuf, 0, sizeof(tbuf));
     act = &action->iso;
     if (act->flags & XkbSA_ISODfltIsGroup) {
         TryCopyStr(tbuf, "group=", sz);
-- 
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