X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgdb.cc;h=d01961985252681729911af9c1f5e956183c507e;hb=3ea291c21ce16aeaf00b6a6f500bf0a3a9b790d9;hp=e8f71657e4418ad57a121da57f960ab34d9100f2;hpb=fc3e875d6bf06f0680e897faffdcab36ad975a03;p=lilypond.git

diff --git a/lily/gdb.cc b/lily/gdb.cc
index e8f71657e4..d019619852 100644
--- a/lily/gdb.cc
+++ b/lily/gdb.cc
@@ -1,14 +1,22 @@
-#include "item.hh"
 #include "spanner.hh"
+#include "paper-column.hh"
 
-// thanks to GDBs wonderful casting abilities, we need these:
-Item*
-to_item (Grob* g)
-{
-  return dynamic_cast<Item*> (g);
-}
-Spanner*
-to_spanner (Grob*g)
-{
-  return dynamic_cast<Spanner*> (g);
+extern "C" {
+  // thanks to GDBs wonderful casting abilities, we need these:
+  Item *
+  to_item (Grob *g)
+  {
+    return dynamic_cast<Item *> (g);
+  }
+  Spanner *
+  to_spanner (Grob *g)
+  {
+    return dynamic_cast<Spanner *> (g);
+  }
+
+  Paper_column *
+  to_pc (Grob *g)
+  {
+    return dynamic_cast<Paper_column *> (g);
+  }
 }