if [ $UID -gt 999 ] && [ "`/usr/bin/id -gn`" = "`/usr/bin/id -un`" ]; then
    if [ -z "$XDG_RUNTIME_DIR" ]; then
        if [ -d "/run/user/${UID}" ]; then
            XDG_RUNTIME_DIR="/run/user/${UID}"
        else
            XDG_RUNTIME_DIR="$HOME"
        fi
        export XDG_RUNTIME_DIR
    fi
    export XDG_CACHE_HOME="$XDG_RUNTIME_DIR/.cache"
    if [ ! -d "$XDG_CACHE_HOME" ] ; then
        mkdir -m 0700 "$XDG_CACHE_HOME"
    fi
fi