X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fgrob.hh;h=09cd566ad335b39708990d05ab74894ff2099af1;hb=a9a451e2316c2e94815e33d51eb42eaae3649384;hp=14a7b4792509e1021fc7d87d1b8d3237572c29f5;hpb=28f3294954eff1f263d3b2e3de1c520f4d2fbdfc;p=lilypond.git

diff --git a/lily/include/grob.hh b/lily/include/grob.hh
index 14a7b47925..09cd566ad3 100644
--- a/lily/include/grob.hh
+++ b/lily/include/grob.hh
@@ -25,6 +25,8 @@
 #include "dimension-cache.hh"
 #include "grob-interface.hh"
 
+#include <set>
+
 class Grob
 {
 private:
@@ -171,6 +173,7 @@ Item *unsmob_item (SCM);
 /* refpoints */
 Grob *common_refpoint_of_list (SCM elt_list, Grob *, Axis a);
 Grob *common_refpoint_of_array (vector<Grob *> const &, Grob *, Axis a);
+Grob *common_refpoint_of_array (set<Grob *> const &, Grob *, Axis a);
 System *get_root_system (Grob *me);
 
 /* extents */