diff --git a/ChangeLog b/ChangeLog
index 91e99df0ba..6cd614f8b9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Thu Aug 12 05:58:09 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/encoding.h (rb_char_to_option_kcode): used in
+	  ripper.
+
+	* node.h (rb_reserved_word): ditto.
+
 Thu Aug 12 00:19:53 2010  Tanaka Akira  <akr@fsij.org>
 
 	* test/ruby/test_rubyoptions.rb (test_script_from_stdin): disable
diff --git a/include/ruby/encoding.h b/include/ruby/encoding.h
index 2527427b1b..c2da285bd7 100644
--- a/include/ruby/encoding.h
+++ b/include/ruby/encoding.h
@@ -79,6 +79,8 @@ extern "C" {
 
 typedef OnigEncodingType rb_encoding;
 
+int rb_char_to_option_kcode(int c, int *option, int *kcode);
+
 int rb_enc_replicate(const char *, rb_encoding *);
 int rb_define_dummy_encoding(const char *);
 #define rb_enc_to_index(enc) ((enc) ? ENC_TO_ENCINDEX(enc) : 0)
diff --git a/node.h b/node.h
index f8cf7de7b2..dbdb6785af 100644
--- a/node.h
+++ b/node.h
@@ -448,9 +448,15 @@ typedef struct RNode {
 #define NEW_PRELUDE(p,b) NEW_NODE(NODE_PRELUDE,p,b,0)
 #define NEW_OPTBLOCK(a) NEW_NODE(NODE_OPTBLOCK,a,0,0)
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 VALUE rb_parser_new(void);
 VALUE rb_parser_end_seen_p(VALUE);
 VALUE rb_parser_encoding(VALUE);
+VALUE rb_parser_get_yydebug(VALUE);
+VALUE rb_parser_set_yydebug(VALUE, VALUE);
 
 NODE *rb_parser_compile_cstr(volatile VALUE, const char*, const char*, int, int);
 NODE *rb_parser_compile_string(volatile VALUE, const char*, VALUE, int);
@@ -472,6 +478,11 @@ struct rb_global_entry *rb_global_entry(ID);
 VALUE rb_gvar_get(struct rb_global_entry *);
 VALUE rb_gvar_set(struct rb_global_entry *, VALUE);
 VALUE rb_gvar_defined(struct rb_global_entry *);
+const struct kwtable *rb_reserved_word(const char *, unsigned int);
+
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
 
 #if defined(__cplusplus)
 #if 0
diff --git a/parse.y b/parse.y
index 7ac471cf3c..2fd1451cad 100644
--- a/parse.y
+++ b/parse.y
@@ -5701,8 +5701,6 @@ parser_tokadd_escape(struct parser_params *parser, rb_encoding **encp)
     return 0;
 }
 
-extern int rb_char_to_option_kcode(int c, int *option, int *kcode);
-
 static int
 parser_regx_options(struct parser_params *parser)
 {