diff --git a/source/blender/blenkernel/BKE_constraint.h b/source/blender/blenkernel/BKE_constraint.h
index 94863e15e46..64e9636cae7 100644
--- a/source/blender/blenkernel/BKE_constraint.h
+++ b/source/blender/blenkernel/BKE_constraint.h
@@ -122,7 +122,7 @@ bConstraintTypeInfo *get_constraint_typeinfo(int type);
 void unique_constraint_name(struct bConstraint *con, struct ListBase *list);
 
 void free_constraints(struct ListBase *list);
-void copy_constraints(struct ListBase *dst, const struct ListBase *src);
+void copy_constraints(struct ListBase *dst, const struct ListBase *src, int do_extern);
 void relink_constraints(struct ListBase *list);
 void id_loop_constraints(struct ListBase *list, ConstraintIDFunc func, void *userdata);
 void free_constraint_data(struct bConstraint *con);
diff --git a/source/blender/blenkernel/intern/action.c b/source/blender/blenkernel/intern/action.c
index 253da25b871..c5705a0f619 100644
--- a/source/blender/blenkernel/intern/action.c
+++ b/source/blender/blenkernel/intern/action.c
@@ -493,7 +493,7 @@ void copy_pose (bPose **dst, bPose *src, int copycon)
 	for (pchan=outPose->chanbase.first; pchan; pchan=pchan->next) {
 		// TODO: rename this argument...
 		if (copycon) {
-			copy_constraints(&listb, &pchan->constraints);  // copy_constraints NULLs listb
+			copy_constraints(&listb, &pchan->constraints, TRUE);  // copy_constraints NULLs listb
 			pchan->constraints= listb;
 			pchan->path= NULL; // XXX remove this line when the new motionpaths are ready... (depreceated code)
 			pchan->mpath= NULL; /* motion paths should not get copied yet... */
@@ -667,7 +667,7 @@ void duplicate_pose_channel_data(bPoseChannel *pchan, const bPoseChannel *pchan_
 	pchan->iklinweight= pchan_from->iklinweight;
 
 	/* constraints */
-	copy_constraints(&pchan->constraints, &pchan_from->constraints);
+	copy_constraints(&pchan->constraints, &pchan_from->constraints, TRUE);
 
 	/* id-properties */
 	if(pchan->prop) {
diff --git a/source/blender/blenkernel/intern/armature.c b/source/blender/blenkernel/intern/armature.c
index a2dbaa9d666..4f9b9435a80 100644
--- a/source/blender/blenkernel/intern/armature.c
+++ b/source/blender/blenkernel/intern/armature.c
@@ -1568,9 +1568,11 @@ static void pose_proxy_synchronize(Object *ob, Object *from, int layer_protected
 			 *	1. extract constraints not from proxy (CONSTRAINT_PROXY_LOCAL) from pchan's constraints
 			 *	2. copy proxy-pchan's constraints on-to new
 			 *	3. add extracted local constraints back on top 
+			 *
+			 *  note for copy_constraints: when copying constraints, disable 'do_extern' otherwise we get the libs direct linked in this blend.
 			 */
 			extract_proxylocal_constraints(&proxylocal_constraints, &pchan->constraints);
-			copy_constraints(&pchanw.constraints, &pchanp->constraints);
+			copy_constraints(&pchanw.constraints, &pchanp->constraints, FALSE);
 			addlisttolist(&pchanw.constraints, &proxylocal_constraints);
 			
 			/* constraints - set target ob pointer to own object */
diff --git a/source/blender/blenkernel/intern/constraint.c b/source/blender/blenkernel/intern/constraint.c
index 18504bab59b..a3f1cb0cb0c 100644
--- a/source/blender/blenkernel/intern/constraint.c
+++ b/source/blender/blenkernel/intern/constraint.c
@@ -4131,7 +4131,7 @@ static void con_extern_cb(bConstraint *con, ID **idpoin, void *userdata)
 }
 
 /* duplicate all of the constraints in a constraint stack */
-void copy_constraints (ListBase *dst, const ListBase *src)
+void copy_constraints (ListBase *dst, const ListBase *src, int do_extern)
 {
 	bConstraint *con, *srccon;
 	
@@ -4149,10 +4149,13 @@ void copy_constraints (ListBase *dst, const ListBase *src)
 			/* perform custom copying operations if needed */
 			if (cti->copy_data)
 				cti->copy_data(con, srccon);
-			
-			/* go over used ID-links for this constraint to ensure that they are valid for proxies */
-			if (cti->id_looper)
-				cti->id_looper(con, con_extern_cb, NULL);
+
+			/* for proxies we dont want to make extern */
+			if(do_extern) {
+				/* go over used ID-links for this constraint to ensure that they are valid for proxies */
+				if (cti->id_looper)
+					cti->id_looper(con, con_extern_cb, NULL);
+			}
 		}
 	}
 }
diff --git a/source/blender/blenkernel/intern/object.c b/source/blender/blenkernel/intern/object.c
index ce064a78cff..baa1caee49b 100644
--- a/source/blender/blenkernel/intern/object.c
+++ b/source/blender/blenkernel/intern/object.c
@@ -1282,7 +1282,7 @@ Object *copy_object(Object *ob)
 			armature_rebuild_pose(obn, obn->data);
 	}
 	defgroup_copy_list(&obn->defbase, &ob->defbase);
-	copy_constraints(&obn->constraints, &ob->constraints);
+	copy_constraints(&obn->constraints, &ob->constraints, TRUE);
 
 	obn->mode = 0;
 	obn->sculpt = NULL;
diff --git a/source/blender/editors/armature/poseobject.c b/source/blender/editors/armature/poseobject.c
index dcd59a3185a..24c3aff9a6a 100644
--- a/source/blender/editors/armature/poseobject.c
+++ b/source/blender/editors/armature/poseobject.c
@@ -691,7 +691,7 @@ void pose_copy_menu(Scene *scene)
 						/* copy constraints to tmpbase and apply 'local' tags before 
 						 * appending to list of constraints for this channel
 						 */
-						copy_constraints(&tmp_constraints, &pchanact->constraints);
+						copy_constraints(&tmp_constraints, &pchanact->constraints, TRUE);
 						if ((ob->proxy) && (pchan->bone->layer & arm->layer_protected)) {
 							bConstraint *con;
 							
@@ -800,7 +800,7 @@ void pose_copy_menu(Scene *scene)
 				/* copy constraints to tmpbase and apply 'local' tags before 
 				 * appending to list of constraints for this channel
 				 */
-				copy_constraints(&tmp_constraints, &const_copy);
+				copy_constraints(&tmp_constraints, &const_copy, TRUE);
 				if ((ob->proxy) && (pchan->bone->layer & arm->layer_protected)) {
 					bConstraint *con;
 					
diff --git a/source/blender/editors/object/object_constraint.c b/source/blender/editors/object/object_constraint.c
index 83da8add62e..eef7919af9f 100644
--- a/source/blender/editors/object/object_constraint.c
+++ b/source/blender/editors/object/object_constraint.c
@@ -1256,7 +1256,7 @@ static int object_constraint_copy_exec(bContext *C, wmOperator *op)
 	CTX_DATA_BEGIN(C, Object*, ob_iter, selected_editable_objects) {
 		if(ob != ob_iter) {
 			if (ob->data != ob_iter->data){
-				copy_constraints(&ob_iter->constraints, &ob->constraints);
+				copy_constraints(&ob_iter->constraints, &ob->constraints, TRUE);
 			}
 			
 			if(ob_iter->totcol==ob->totcol) {
diff --git a/source/blender/editors/object/object_edit.c b/source/blender/editors/object/object_edit.c
index 6631f5fc0d2..53d614626ad 100644
--- a/source/blender/editors/object/object_edit.c
+++ b/source/blender/editors/object/object_edit.c
@@ -1450,7 +1450,7 @@ void copy_attr(Scene *scene, View3D *v3d, short event)
 				}
 				else if(event==22) {
 					/* Copy the constraint channels over */
-					copy_constraints(&base->object->constraints, &ob->constraints);
+					copy_constraints(&base->object->constraints, &ob->constraints, TRUE);
 					
 					do_scene_sort= 1;
 				}
diff --git a/source/gameengine/Converter/BL_ArmatureObject.cpp b/source/gameengine/Converter/BL_ArmatureObject.cpp
index 35ee3ac1ca3..78f16dd6982 100644
--- a/source/gameengine/Converter/BL_ArmatureObject.cpp
+++ b/source/gameengine/Converter/BL_ArmatureObject.cpp
@@ -108,7 +108,7 @@ void game_copy_pose(bPose **dst, bPose *src, int copy_constraint)
 		if (copy_constraint) {
 			ListBase listb;
 			// copy all constraint for backward compatibility
-			copy_constraints(&listb, &pchan->constraints);  // copy_constraints NULLs listb
+			copy_constraints(&listb, &pchan->constraints, FALSE);  // copy_constraints NULLs listb, no need to make extern for this operation.
 			pchan->constraints= listb;
 		} else {
 			pchan->constraints.first = NULL;