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+Wed Feb 15 05:08:25 2012 Nobuyoshi Nakada <nobu@ruby-lang.org>
+
+ * ext/dl/cptr.c (rb_dlptr_s_to_ptr): use rb_check_funcall.
+
+ * ext/dl/cfunc.c (dlcfunc_mark), ext/dl/cptr.c (dlptr_mark):
+ workaround to mark wrapped object. this is not a true fix,
+ because [Bug #4929] is caused by the interface design of DL.
+
Wed Feb 15 05:04:47 2012 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/dl/cptr.c (rb_dlptr_aref, rb_dlptr_aset): check NULL pointer