bool top_level_;
};
-ADD_ACKNOWLEDGER (Vertical_align_engraver, axis_group);
+void
+Vertical_align_engraver::boot ()
+{
+ ADD_ACKNOWLEDGER (Vertical_align_engraver, axis_group);
+}
+
ADD_TRANSLATOR (Vertical_align_engraver,
/* doc */
"Catch groups (staves, lyrics lines, etc.) and stack them"