--- ruby-1.9.3-p448/parse.y~	2013-04-11 04:21:43.000000000 +0200
+++ ruby-1.9.3-p448/parse.y	2013-08-18 20:36:49.832045588 +0200
@@ -277,8 +277,6 @@
 static int parser_yyerror(struct parser_params*, const char*);
 #define yyerror(msg) parser_yyerror(parser, (msg))
 
-#define YYLEX_PARAM parser
-
 #define lex_strterm		(parser->parser_lex_strterm)
 #define lex_state		(parser->parser_lex_state)
 #define cond_stack		(parser->parser_cond_stack)
@@ -610,7 +608,8 @@
 #endif
 %}
 
-%pure_parser
+%pure-parser
+%lex-param   {struct parser_params *parser}
 %parse-param {struct parser_params *parser}
 
 %union {