1 files changed, 9 insertions, 0 deletions
diff --git a/parse.y b/parse.y
index 52d0f2a139..935f678efd 100644
--- a/parse.y
+++ b/parse.y
@@ -13,14 +13,23 @@
 %{
 
 #define YYDEBUG 1
+
 #include "ruby.h"
 #include "env.h"
+#include "intern.h"
 #include "node.h"
 #include "st.h"
 #include <stdio.h>
 #include <errno.h>
 #include <ctype.h>
 
+#define yyparse ruby_yyparse
+#define yylex ruby_yylex
+#define yyerror ruby_yyerror
+#define yylval ruby_yylval
+#define yychar ruby_yychar
+#define yydebug ruby_yydebug
+
 #define ID_SCOPE_SHIFT 3
 #define ID_SCOPE_MASK 0x07
 #define ID_LOCAL    0x01