fix [#27178] Material links lost when making mesh data local

- making local object data - Curve/Mesh/MBall lost references to linked materials.
- joining a linked mesh object into a local one lost the link.

As well as these reported bugs, checked all local functions for consistency/correctness and found other cases which would also fail.
- making local metaball didn't ensure unique ID name.
- make_local_armature() was missing check for object users - main body of code would never run.
- local particles didn't set the dupli-group or textures to extern.

checked all local functions for consistency/correctness.

1 files changed, 0 insertions, 1 deletions

diff --git a/source/blender/blenkernel/BKE_object.h b/source/blender/blenkernel/BKE_object.h
index fe757b65970..3a98f892bd8 100644
--- a/source/blender/blenkernel/BKE_object.h
+++ b/source/blender/blenkernel/BKE_object.h
@@ -91,7 +91,6 @@ struct Object *add_only_object(int type, const char *name);
 struct Object *add_object(struct Scene *scene, int type);
 
 struct Object *copy_object(struct Object *ob);
-void expand_local_object(struct Object *ob);
 void make_local_object(struct Object *ob);
 int object_is_libdata(struct Object *ob);
 int object_data_is_libdata(struct Object *ob);