diff -x *.o -x config.* -x *.orig -u bison-1.24/bison.info bison-1.24.LOCAL_MODS/bison.info
--- bison-1.24/bison.info	Tue May 30 14:22:09 1995
+++ bison-1.24.LOCAL_MODS/bison.info	Wed Sep 27 10:06:27 1995
@@ -29,8 +29,8 @@
 bison.info-1: 1169
 bison.info-2: 49845
 bison.info-3: 96257
-bison.info-4: 144384
-bison.info-5: 187731
+bison.info-4: 144474
+bison.info-5: 188014
 
 Tag Table:
 (Indirect)
@@ -97,33 +97,33 @@
 Node: Token Values118124
 Node: Token Positions119272
 Node: Pure Calling120164
-Node: Error Reporting122914
-Node: Action Features125039
-Node: Algorithm128690
-Node: Look-Ahead130983
-Node: Shift/Reduce133115
-Node: Precedence136026
-Node: Why Precedence136677
-Node: Using Precedence138532
-Node: Precedence Examples139500
-Node: How Precedence140201
-Node: Contextual Precedence141350
-Node: Parser States143141
-Node: Reduce/Reduce144384
-Node: Mystery Conflicts147945
-Node: Stack Overflow151331
-Node: Error Recovery152704
-Node: Context Dependency157840
-Node: Semantic Tokens158688
-Node: Lexical Tie-ins161705
-Node: Tie-in Recovery163253
-Node: Debugging165425
-Node: Invocation168776
-Node: Bison Options169439
-Node: Option Cross Key173092
-Node: VMS Invocation173824
-Node: Table of Symbols174608
-Node: Glossary181547
-Node: Index187731
+Node: Error Reporting123004
+Node: Action Features125129
+Node: Algorithm128780
+Node: Look-Ahead131073
+Node: Shift/Reduce133205
+Node: Precedence136116
+Node: Why Precedence136767
+Node: Using Precedence138622
+Node: Precedence Examples139590
+Node: How Precedence140291
+Node: Contextual Precedence141440
+Node: Parser States143231
+Node: Reduce/Reduce144474
+Node: Mystery Conflicts148035
+Node: Stack Overflow151421
+Node: Error Recovery152794
+Node: Context Dependency157930
+Node: Semantic Tokens158778
+Node: Lexical Tie-ins161795
+Node: Tie-in Recovery163343
+Node: Debugging165515
+Node: Invocation168866
+Node: Bison Options169529
+Node: Option Cross Key173182
+Node: VMS Invocation173914
+Node: Table of Symbols174698
+Node: Glossary181830
+Node: Index188014
 
 End Tag Table
diff -x *.o -x config.* -x *.orig -u bison-1.24/bison.info-3 bison-1.24.LOCAL_MODS/bison.info-3
--- bison-1.24/bison.info-3	Tue May 30 14:22:08 1995
+++ bison-1.24.LOCAL_MODS/bison.info-3	Wed Sep 27 10:06:27 1995
@@ -731,6 +731,9 @@
 object type, or you can declare it as `void *' and access the contents
 as shown above.
 
+   Similarly you may define `YYERROR_PARAM' to pass an additional
+argument to `yyerror'.
+
 
 File: bison.info,  Node: Error Reporting,  Next: Action Features,  Prev: Lexical,  Up: Interface
 
diff -x *.o -x config.* -x *.orig -u bison-1.24/bison.info-4 bison-1.24.LOCAL_MODS/bison.info-4
--- bison-1.24/bison.info-4	Tue May 30 14:22:09 1995
+++ bison-1.24.LOCAL_MODS/bison.info-4	Wed Sep 27 10:06:27 1995
@@ -848,6 +848,11 @@
      (*note Error Recovery::.), or (if recovery is impossible) make
      `yyparse' return 1.  *Note Error Recovery::.
 
+`YYERROR_PARAM'
+     Macro for specifying an extra argument (or list of extra
+     arguments) for `yyparse' to pass to `yylex'.  *Note Calling
+     Conventions for Pure Parsers: Pure Calling.
+
 `YYERROR_VERBOSE'
      Macro that you define with `#define' in the Bison declarations
      section to request verbose, specific error message strings when
diff -x *.o -x config.* -x *.orig -u bison-1.24/bison.info-5 bison-1.24.LOCAL_MODS/bison.info-5
--- bison-1.24/bison.info-5	Tue May 30 14:22:09 1995
+++ bison-1.24.LOCAL_MODS/bison.info-5	Wed Sep 27 10:06:27 1995
@@ -207,12 +207,13 @@
 * YYBACKUP:                             Action Features.
 * yychar:                               Look-Ahead.
 * yyclearin:                            Error Recovery.
-* YYDEBUG:                              Debugging.
 * yydebug:                              Debugging.
+* YYDEBUG:                              Debugging.
 * YYEMPTY:                              Action Features.
 * yyerrok:                              Error Recovery.
 * YYERROR:                              Action Features.
 * yyerror:                              Error Reporting.
+* YYERROR_PARAM:                        Pure Calling.
 * YYERROR_VERBOSE:                      Error Reporting.
 * YYINITDEPTH:                          Stack Overflow.
 * yylex:                                Lexical.
diff -x *.o -x config.* -x *.orig -u bison-1.24/bison.simple bison-1.24.LOCAL_MODS/bison.simple
--- bison-1.24/bison.simple	Wed May  3 07:55:38 1995
+++ bison-1.24.LOCAL_MODS/bison.simple	Wed Sep 27 14:53:06 1995
@@ -61,6 +61,12 @@
    It is replaced by the list of actions, each action
    as one case of the switch.  */
 
+#ifdef YYERROR_PARAM
+#define YY_error(__x) yyerror(__x,YYERROR_PARAM)
+#else
+#define YY_error(__x) yyerror(__x)
+#endif
+
 #define yyerrok		(yyerrstatus = 0)
 #define yyclearin	(yychar = YYEMPTY)
 #define YYEMPTY		-2
@@ -68,7 +74,7 @@
 #define YYACCEPT	return(0)
 #define YYABORT 	return(1)
 #define YYERROR		goto yyerrlab1
-/* Like YYERROR except do call yyerror.
+/* Like YYERROR except do call YY_error.
    This remains here temporarily to ease the
    transition to the new meaning of YYERROR, for GCC.
    Once GCC version 2 has supplanted version 1, this can go.  */
@@ -83,7 +89,7 @@
       goto yybackup;						\
     }								\
   else								\
-    { yyerror ("syntax error: cannot back up"); YYERROR; }	\
+    { YY_error ("syntax error: cannot back up"); YYERROR; }	\
 while (0)
 
 #define YYTERROR	1
@@ -147,11 +153,6 @@
 #ifndef YYMAXDEPTH
 #define YYMAXDEPTH 10000
 #endif
-
-/* Prevent warning if -Wstrict-prototypes.  */
-#ifdef __GNUC__
-int yyparse (void);
-#endif
 
 #if __GNUC__ > 1		/* GNU C and GNU C++ define this.  */
 #define __yy_memcpy(FROM,TO,COUNT)	__builtin_memcpy(TO,FROM,COUNT)
@@ -192,7 +193,7 @@
 #endif
 #endif
 
-#line 192 "bison.simple"
+#line 197 "bison.simple"
 
 /* The user can define YYPARSE_PARAM as the name of an argument to be passed
    into yyparse.  The argument should have type void *.
@@ -200,6 +201,15 @@
    Grammar actions can access the variable by casting it
    to the proper pointer type.  */
 
+/* Prevent warning if -Wstrict-prototypes.  */
+#ifdef __GNUC__
+#ifdef YYPARSE_PARAM
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse(void);
+#endif
+#endif
+
 #ifdef YYPARSE_PARAM
 #define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
 #else
@@ -318,7 +328,7 @@
       /* Extend the stack our own way.  */
       if (yystacksize >= YYMAXDEPTH)
 	{
-	  yyerror("parser stack overflow");
+	  YY_error("parser stack overflow");
 	  return 2;
 	}
       yystacksize *= 2;
@@ -488,7 +498,7 @@
 #endif
 
 $   /* the action file gets copied in in place of this dollarsign */
-#line 487 "bison.simple"
+#line 502 "bison.simple"
 
   yyvsp -= yylen;
   yyssp -= yylen;
@@ -581,15 +591,15 @@
 			count++;
 		      }
 		}
-	      yyerror(msg);
+	      YY_error(msg);
 	      free(msg);
 	    }
 	  else
-	    yyerror ("parse error; also virtual memory exceeded");
+	    YY_error ("parse error; also virtual memory exceeded");
 	}
       else
 #endif /* YYERROR_VERBOSE */
-	yyerror("parse error");
+	YY_error("parse error");
     }
 
   goto yyerrlab1;
diff -x *.o -x config.* -x *.orig -u bison-1.24/bison.texinfo bison-1.24.LOCAL_MODS/bison.texinfo
--- bison-1.24/bison.texinfo	Wed May  3 08:10:33 1995
+++ bison-1.24.LOCAL_MODS/bison.texinfo	Wed Sep 27 10:05:30 1995
@@ -3409,6 +3409,10 @@
 the proper object type, or you can declare it as @code{void *} and
 access the contents as shown above.
 
+@vindex YYERROR_PARAM
+Similarly you may define @code{YYERROR_PARAM} to pass an additional
+argument to @code{yyerror}.
+
 @node Error Reporting, Action Features, Lexical, Interface
 @section The Error Reporting Function @code{yyerror}
 @cindex error reporting function
@@ -4901,6 +4905,11 @@
 @code{yyerror} and then perform normal error recovery if possible
 (@pxref{Error Recovery}), or (if recovery is impossible) make
 @code{yyparse} return 1.  @xref{Error Recovery}.
+
+@item YYERROR_PARAM
+Macro for specifying an extra argument (or list of extra arguments) for
+@code{yyparse} to pass to @code{yylex}.  @xref{Pure Calling,, Calling
+Conventions for Pure Parsers}.
 
 @item YYERROR_VERBOSE
 Macro that you define with @code{#define} in the Bison declarations
