--- dime-0.9.1/include/dime/classes/Class.h.orig	1999-02-25 17:13:24.000000000 +0100
+++ dime-0.9.1/include/dime/classes/Class.h	2011-11-15 20:51:01.204433613 +0100
@@ -44,6 +44,7 @@
 class dimeInput;
 class dimeMemHandler;
 class dimeOutput;
+class dimeModel;
 
 class dimeClass : public dimeRecordHolder
 {
--- dime-0.9.1/include/dime/entities/Entity.h.orig	1999-02-25 17:13:24.000000000 +0100
+++ dime-0.9.1/include/dime/entities/Entity.h	2011-11-15 20:52:01.871102310 +0100
@@ -42,6 +42,7 @@
 #include <dime/RecordHolder.h>
 
 class dimeLayer;
+class dimeModel;
 
 class dimeEntity : public dimeRecordHolder
 {
--- dime-0.9.1/include/dime/entities/Vertex.h.orig	1999-02-25 17:13:24.000000000 +0100
+++ dime-0.9.1/include/dime/entities/Vertex.h	2011-11-15 20:52:28.654436541 +0100
@@ -39,6 +39,8 @@
 #include <dime/entities/Entity.h>
 #include <dime/util/Linear.h>
 
+class dimePolyline;
+
 class dimeVertex : public dimeEntity
 {
   friend class dimePolyline;
--- dime-0.9.1/include/dime/entities/Insert.h.orig	1999-02-25 17:13:24.000000000 +0100
+++ dime-0.9.1/include/dime/entities/Insert.h	2011-11-15 20:53:17.721104851 +0100
@@ -39,6 +39,8 @@
 #include <dime/entities/Entity.h>
 #include <dime/util/Linear.h>
 
+class dimeBlock;
+
 class dimeInsert : public dimeEntity
 {
   friend class dimeEntitiesSection;
--- dime-0.9.1/include/dime/objects/Object.h.orig	1999-02-25 17:13:24.000000000 +0100
+++ dime-0.9.1/include/dime/objects/Object.h	2011-11-15 20:51:25.181101082 +0100
@@ -41,6 +41,8 @@
 #include <dime/util/Linear.h>
 #include <dime/RecordHolder.h>
 
+class dimeModel;
+
 class dimeObject : public dimeRecordHolder
 {
   friend class dimeObjectesSection;
--- dime-0.9.1/include/dime/Output.h.orig	1999-02-25 17:13:23.000000000 +0100
+++ dime-0.9.1/include/dime/Output.h	2011-11-15 20:49:54.631098052 +0100
@@ -38,6 +38,8 @@
 #include <dime/Basic.h>
 #include <stdio.h>
 
+class dimeModel;
+
 class dimeOutput
 {
 public: