Hi
# rm /usr/X11R6/include/extenstions/XKBui.h
does not look right to me.
1. The spelling of extensions is incorrect
2. I think /usr/X11R6/include/X11/extensions/XKBui.h
is the correct path
Index: faq/current.html
===================================================================
RCS file: /cvs/www/faq/current.html,v
retrieving revision 1.1047
diff -u -p -r1.1047 current.html
--- faq/current.html 10 Jul 2020 06:04:41 -0000 1.1047
+++ faq/current.html 11 Jul 2020 14:17:46 -0000
@@ -106,7 +106,7 @@ It should be manually removed.
<pre class="cmdbox">
# <b>rm /usr/X11R6/lib/libxkbui.*</b>
# <b>rm /usr/X11R6/lib/pkgconfig/xkbui.pc</b>
-# <b>rm /usr/X11R6/include/extenstions/XKBui.h</b>
+# <b>rm /usr/X11R6/include/X11/extensions/XKBui.h</b>
</pre>
