merges r29518 from trunk into ruby_1_9_2.

--
* class.c (rb_define_{class,module}_id_under): register to be
  marked, which probably are defined and used internally.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@30049 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/class.c b/class.c
index e6fb74816b..bb65ce487f 100644
--- a/class.c
+++ b/class.c
@@ -524,6 +524,7 @@ rb_define_class_id_under(VALUE outer, ID id, VALUE super)
     rb_set_class_path_string(klass, outer, rb_id2str(id));
     rb_const_set(outer, id, klass);
     rb_class_inherited(super, klass);
+    rb_gc_register_mark_object(klass);
 
     return klass;
 }
@@ -590,6 +591,7 @@ rb_define_module_id_under(VALUE outer, ID id)
     module = rb_define_module_id(id);
     rb_const_set(outer, id, module);
     rb_set_class_path_string(module, outer, rb_id2str(id));
+    rb_gc_register_mark_object(module);
 
     return module;
 }