citadel/poky/meta/recipes-graphics/x11-common/xserver-nodm-init/X11/Xsession.d/13xdgbasedirs.sh

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# Minimal/stub implementation of the XDG Base Directory specification.
# http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
#
# Wayland needs XDG_RUNTIME_DIR, so set it to /tmp. This isn't compliant with
# the specification (wrong mode, wrong owner) but it's mostly sufficient.
#
# In the ideal case where SystemD is booting and userspace is initiated by a
# SystemD user session this will have been set already, so don't overwrite it.
if [ -z "$XDG_RUNTIME_DIR" ]; then
XDG_RUNTIME_DIR="/tmp"
export XDG_RUNTIME_DIR
fi