add prototypes.

diff --git a/lily/include/lily-proto.hh b/lily/include/lily-proto.hh
index fc600c1bd62ffa82f3c9b0bd25405528ff39d274..768f24002cf4436bbb067b618b9f02558f2f1e7a 100644 (file)
--- a/lily/include/lily-proto.hh
+++ b/lily/include/lily-proto.hh
@@ -45,6 +45,9 @@ class Context;
 class Context_def;
 class Context_specced_music;
 class Dispatcher;
+class Dot_column;
+class Dot_configuration;
+class Dot_formatting_problem;
 class Engraver;
 class Engraver;
 class Engraver_group;
@@ -149,6 +152,7 @@ class Simple_spacer;
 class Simple_spacer_wrapper;
 class Simultaneous_music;
 class Simultaneous_music_iterator;
+class Skyline;
 class Skyline_entry;
 class Slur_configuration;
 class Slur_score_state;