The table is defined as static const guint16 [], so it really should only be included in one source file.
GtkComposeTable and GtkComposeTableCompact use guint16 for the data. https://bugzilla.gnome.org/show_bug.cgi?id=721120
Some functions need to be exported if X11 compose files are loaded. https://bugzilla.gnome.org/show_bug.cgi?id=721120