Emacs hangs in xlib's Ximread (when the ibus daemon goes away and I
think in other some situations even not using ibus but just xkb). I'm
attaching a full backtrace which may be more verbose than
desired. Maybe it is possible to work around this case, or suggest
something some way xlib could handle it. -- Madhu

In GNU Emacs 30.0.50 (build 4, x86_64-pc-linux-gnu, X toolkit, cairo
 version 1.17.8, Xaw3d scroll bars) of 2023-07-20
Windowing system distributor 'The X.Org Foundation', version 11.0.12201007
System Description: Gentoo/Linux

Configured using:
 'configure --with-x-toolkit=athena --with-native-compilation -C'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES
NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3
THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XAW3D XDBE XIM
XINPUT2 XPM LUCID ZLIB

Important settings:
  value of $LC_COLLATE: C
  value of $LANG: en_US.utf8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix