build: look for Perl in configure.

[bison.git] / data / yacc.c

diff --git a/data/yacc.c b/data/yacc.c
index 5e77f844dc43be14a088c9e4642fc516ef0568f6..7bcbd7ca54c84089a9d25f070a753e51dd11108b 100644 (file)
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -345,9 +345,11 @@ m4_if(b4_api_prefix, [yy], [],
 # define YYERROR_VERBOSE ]b4_error_verbose_flag[
 #endif
 
-/* In a future release of Bison, this section will be replaced
+]m4_ifval(m4_quote(b4_spec_defines_file),
+[[/* In a future release of Bison, this section will be replaced
    by #include "@basename(]b4_spec_defines_file[@)".  */
-]b4_shared_declarations[
+]])dnl
+b4_shared_declarations[
 
 /* Copy the second part of user declarations.  */
 ]b4_user_post_prologue
@@ -1513,7 +1515,7 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
   int yyn;
   int yyresult;
   /* Lookahead token as an internal (translated) token number.  */
-  int yytoken;
+  int yytoken = 0;
   /* The variables used to return semantic value and location from the
      action routines.  */
   YYSTYPE yyval;]b4_locations_if([[
@@ -1538,7 +1540,6 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
       goto yyread_pushed_token;
     }]])[
 
-  yytoken = 0;
   yyss = yyssa;
   yyvs = yyvsa;]b4_locations_if([[
   yyls = yylsa;]])[
@@ -1570,17 +1571,16 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
   yylloc.first_column = yylloc.last_column = ]b4_location_initial_column[;
 #endif]])
 m4_ifdef([b4_initial_action],[
-m4_pushdef([b4_at_dollar],     [m4_define([b4_at_dollar_used])yylloc])dnl
-m4_pushdef([b4_dollar_dollar], [m4_define([b4_dollar_dollar_used])yylval])dnl
+b4_dollar_pushdef([m4_define([b4_dollar_dollar_used])yylval], [],
+                  [m4_define([b4_at_dollar_used])yylloc])dnl
 /* User initialization code.  */
 b4_user_initial_action
-m4_popdef([b4_dollar_dollar])dnl
-m4_popdef([b4_at_dollar])])dnl
+b4_dollar_popdef[]dnl
 m4_ifdef([b4_dollar_dollar_used],[[  yyvsp[0] = yylval;
 ]])dnl
 m4_ifdef([b4_at_dollar_used], [[  yylsp[0] = yylloc;
-]])[
-  goto yysetstate;
+]])])dnl
+[  goto yysetstate;
 
 /*------------------------------------------------------------.
 | yynewstate -- Push a new state, which is found in yystate.  |
@@ -2046,7 +2046,7 @@ yypushreturn:]])[
 }
 
 
-]b4_epilogue
+]b4_epilogue[]dnl
 b4_defines_if(
 [@output(b4_spec_defines_file@)@
 b4_copyright([Bison interface for Yacc-like parsers in C],