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+Mon Jul 29 22:04:45 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_compare_by_id): add function prototype.
+
 Mon Jul 29 21:53:41 2013  Masaki Matsushita  <glass.saga@gmail.com>
 
 	* hash.c (rb_hash_compare_by_id): don't call rb_hash_rehash()