diff --git a/ChangeLog b/ChangeLog
index 432140caf9..314346eeab 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -8,6 +8,11 @@ Sat Aug  2 14:53:55 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/openssl/extconf.rb: use pkg_config.
 
+Sat Aug  2 13:45:17 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* gc.c: add "#pragma weak" for __libc_ia64_register_backing_store_base.
+	  [ruby-dev:21072]
+
 Sat Aug  2 14:02:39 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* variable.c (classname): find regular class name if not set.
@@ -18,6 +23,9 @@ Sat Aug  2 03:30:25 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 	* class.c (rb_obj_singleton_methods): should not go up to
 	  ancestors unless the recursive flag is set. [ruby-list:38007]
 
+	* eval.c (rb_yield_0): expand [] to nil if avalue is set.
+	   [ruby-dev:21058]
+
 	* hash.c (env_each_key): use env_keys to avoid environment modify
 	  on the fly.
 
diff --git a/gc.c b/gc.c
index e61f701333..97ede14500 100644
--- a/gc.c
+++ b/gc.c
@@ -32,6 +32,7 @@
 
 #ifdef __ia64__
 #include <ucontext.h>
+#pragma weak __libc_ia64_register_backing_store_base
 extern unsigned long __libc_ia64_register_backing_store_base;
 #endif