Centralize yacc interface names remapping (yyparse, yylex, yyerror, etc)

This factors out all the yy-variables remapping to a single file,
instead of each parser having to do the same, with different prefixes.

With this, a parser just needs to define the prefix they want and
include yy-remap.h, which does the dirty job.

Note this renames the c_error, ada_error, etc. functions.  Writing the
remapping pattern as:

 #define yyerror GDB_YY_REMAP (error)

instead of:

 #define yyerror GDB_YY_REMAP (yyerror)

would have avoided the renaming.  However, that would be problematic
if we have a macro 'foo' in scope, when we write:

 #define yyfoo GDB_YY_REMAP (foo)

as that would expand 'foo'.

The c_yyerror etc. naming end ups indicating that this is a yacc
related function more clearly, so feels like a good change, anyway.

gdb/ChangeLog:
2016-04-22  Pedro Alves  <palves@redhat.com>

	* ada-exp.y: Remove all yy symbol remappings.
	(GDB_YY_REMAP_PREFIX): Define.
	Include "yy-remap.h".
	* ada-lang.c (ada_language_defn): Adjust.
	* ada-lang.h (ada_error): Rename to ...
	(ada_yyerror): ... this.
	* c-exp.y: Remove all yy symbol remappings.
	(GDB_YY_REMAP_PREFIX): Define.
	Include "yy-remap.h".
	* c-lang.c (c_language_defn, cplus_language_defn)
	(asm_language_defn, minimal_language_defn): Adjust.
	* c-lang.h (c_error): Rename to ...
	(c_yyerror): ... this.
	* d-exp.y: Remove all yy symbol remappings.
	(GDB_YY_REMAP_PREFIX): Define.
	Include "yy-remap.h".
	* d-lang.c (d_language_defn): Adjust.
	* d-lang.h (d_error): Rename to ...
	(d_yyerror): ... this.
	* f-exp.y: Remove all yy symbol remappings.
	(GDB_YY_REMAP_PREFIX): Define.
	Include "yy-remap.h".
	* f-lang.c (f_language_defn): Adjust.
	* f-lang.h (f_error): Rename to ...
	(f_yyerror): ... this.
	* go-exp.y: Remove all yy symbol remappings.
	(GDB_YY_REMAP_PREFIX): Define.
	Include "yy-remap.h".
	* go-lang.c (go_language_defn): Adjust.
	* go-lang.h (go_error): Rename to ...
	(go_yyerror): ... this.
	* jv-exp.y: Remove all yy symbol remappings.
	(GDB_YY_REMAP_PREFIX): Define.
	Include "yy-remap.h".
	* jv-lang.c (java_language_defn): Adjust.
	* jv-lang.h (java_error): Rename to ...
	(java_yyerror): ... this.
	* m2-exp.y: Remove all yy symbol remappings.
	(GDB_YY_REMAP_PREFIX): Define.
	Include "yy-remap.h".
	* m2-lang.c (m2_language_defn): Adjust.
	* m2-lang.h (m2_error): Rename to ...
	(m2_yyerror): ... this.
	* objc-exp.y: Remove all yy symbol remappings.
	(GDB_YY_REMAP_PREFIX): Define.
	Include "yy-remap.h".
	* objc-lang.c (objc_language_defn): Adjust.
	* opencl-lang.c (opencl_language_defn): Adjust.
	* p-exp.y: Remove all yy symbol remappings.
	(GDB_YY_REMAP_PREFIX): Define.
	Include "yy-remap.h".
	* p-lang.c (pascal_language_defn): Adjust.
	* p-lang.h (pascal_error): Rename to ...
	(pascal_yyerror): ... this.
	* yy-remap.h: New file.

28 files changed, 203 insertions, 484 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 828d390..512344c 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,63 @@
 2016-04-22  Pedro Alves  <palves@redhat.com>
 
+	* ada-exp.y: Remove all yy symbol remappings.
+	(GDB_YY_REMAP_PREFIX): Define.
+	Include "yy-remap.h".
+	* ada-lang.c (ada_language_defn): Adjust.
+	* ada-lang.h (ada_error): Rename to ...
+	(ada_yyerror): ... this.
+	* c-exp.y: Remove all yy symbol remappings.
+	(GDB_YY_REMAP_PREFIX): Define.
+	Include "yy-remap.h".
+	* c-lang.c (c_language_defn, cplus_language_defn)
+	(asm_language_defn, minimal_language_defn): Adjust.
+	* c-lang.h (c_error): Rename to ...
+	(c_yyerror): ... this.
+	* d-exp.y: Remove all yy symbol remappings.
+	(GDB_YY_REMAP_PREFIX): Define.
+	Include "yy-remap.h".
+	* d-lang.c (d_language_defn): Adjust.
+	* d-lang.h (d_error): Rename to ...
+	(d_yyerror): ... this.
+	* f-exp.y: Remove all yy symbol remappings.
+	(GDB_YY_REMAP_PREFIX): Define.
+	Include "yy-remap.h".
+	* f-lang.c (f_language_defn): Adjust.
+	* f-lang.h (f_error): Rename to ...
+	(f_yyerror): ... this.
+	* go-exp.y: Remove all yy symbol remappings.
+	(GDB_YY_REMAP_PREFIX): Define.
+	Include "yy-remap.h".
+	* go-lang.c (go_language_defn): Adjust.
+	* go-lang.h (go_error): Rename to ...
+	(go_yyerror): ... this.
+	* jv-exp.y: Remove all yy symbol remappings.
+	(GDB_YY_REMAP_PREFIX): Define.
+	Include "yy-remap.h".
+	* jv-lang.c (java_language_defn): Adjust.
+	* jv-lang.h (java_error): Rename to ...
+	(java_yyerror): ... this.
+	* m2-exp.y: Remove all yy symbol remappings.
+	(GDB_YY_REMAP_PREFIX): Define.
+	Include "yy-remap.h".
+	* m2-lang.c (m2_language_defn): Adjust.
+	* m2-lang.h (m2_error): Rename to ...
+	(m2_yyerror): ... this.
+	* objc-exp.y: Remove all yy symbol remappings.
+	(GDB_YY_REMAP_PREFIX): Define.
+	Include "yy-remap.h".
+	* objc-lang.c (objc_language_defn): Adjust.
+	* opencl-lang.c (opencl_language_defn): Adjust.
+	* p-exp.y: Remove all yy symbol remappings.
+	(GDB_YY_REMAP_PREFIX): Define.
+	Include "yy-remap.h".
+	* p-lang.c (pascal_language_defn): Adjust.
+	* p-lang.h (pascal_error): Rename to ...
+	(pascal_yyerror): ... this.
+	* yy-remap.h: New file.
+
+2016-04-22  Pedro Alves  <palves@redhat.com>
+
 	* common/common-exceptions.h (GDB_XCPT_TRY): Remove mention of
 	the foreign frames issue.
 	[__cplusplus] (GDB_XCPT): Define as GDB_XCPT_TRY.
diff --git a/gdb/ada-exp.y b/gdb/ada-exp.y
index a98bdbc..0a33e10 100644
--- a/gdb/ada-exp.y
+++ b/gdb/ada-exp.y
@@ -50,62 +50,10 @@
 
 #define parse_type(ps) builtin_type (parse_gdbarch (ps))
 
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
-   as well as gratuitiously global symbol names, so we can have multiple
-   yacc generated parsers in gdb.  These are only the variables
-   produced by yacc.  If other parser generators (bison, byacc, etc) produce
-   additional global names that conflict at link time, then those parser
-   generators need to be fixed instead of adding those names to this list.  */
-
-/* NOTE: This is clumsy, especially since BISON and FLEX provide --prefix
-   options.  I presume we are maintaining it to accommodate systems
-   without BISON?  (PNH) */
-
-#define	yymaxdepth ada_maxdepth
-/* ada_parse calls this after initialization */
-#define	yyparse	ada_parse_internal
-#define	yylex	ada_lex
-#define	yyerror	ada_error
-#define	yylval	ada_lval
-#define	yychar	ada_char
-#define	yydebug	ada_debug
-#define	yypact	ada_pact
-#define	yyr1	ada_r1
-#define	yyr2	ada_r2
-#define	yydef	ada_def
-#define	yychk	ada_chk
-#define	yypgo	ada_pgo
-#define	yyact	ada_act
-#define	yyexca	ada_exca
-#define yyerrflag ada_errflag
-#define yynerrs	ada_nerrs
-#define	yyps	ada_ps
-#define	yypv	ada_pv
-#define	yys	ada_s
-#define	yy_yys	ada_yys
-#define	yystate	ada_state
-#define	yytmp	ada_tmp
-#define	yyv	ada_v
-#define	yy_yyv	ada_yyv
-#define	yyval	ada_val
-#define	yylloc	ada_lloc
-#define yyreds	ada_reds		/* With YYDEBUG defined */
-#define yytoks	ada_toks		/* With YYDEBUG defined */
-#define yyname	ada_name		/* With YYDEBUG defined */
-#define yyrule	ada_rule		/* With YYDEBUG defined */
-#define yydefred ada_yydefred
-#define yyss	ada_yyss
-#define yysslim	ada_yysslim
-#define yyssp	ada_yyssp
-#define yystacksize ada_yystacksize
-#define yyvs	ada_yyvs
-#define yyvsp	ada_yyvsp
-
-#ifndef YYDEBUG
-#define	YYDEBUG	1		/* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+   etc).  */
+#define GDB_YY_REMAP_PREFIX ada_
+#include "yy-remap.h"
 
 struct name_info {
   struct symbol *sym;
diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index d01660a..412aa97 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -14056,7 +14056,7 @@ const struct language_defn ada_language_defn = {
   macro_expansion_no,
   &ada_exp_descriptor,
   parse,
-  ada_error,
+  ada_yyerror,
   resolve,
   ada_printchar,                /* Print a character constant */
   ada_printstr,                 /* Function to print string constant */
diff --git a/gdb/ada-lang.h b/gdb/ada-lang.h
index 1480977..7de71eb 100644
--- a/gdb/ada-lang.h
+++ b/gdb/ada-lang.h
@@ -159,7 +159,7 @@ extern int ada_get_field_index (const struct type *type,
 
 extern int ada_parse (struct parser_state *);    /* Defined in ada-exp.y */
 
-extern void ada_error (char *); /* Defined in ada-exp.y */
+extern void ada_yyerror (char *); /* Defined in ada-exp.y */
 
                         /* Defined in ada-typeprint.c */
 extern void ada_print_type (struct type *, const char *, struct ui_file *, int,
diff --git a/gdb/c-exp.y b/gdb/c-exp.y
index 9f2a229..29f672f 100644
--- a/gdb/c-exp.y
+++ b/gdb/c-exp.y
@@ -56,65 +56,10 @@
 
 #define parse_type(ps) builtin_type (parse_gdbarch (ps))
 
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
-   as well as gratuitiously global symbol names, so we can have multiple
-   yacc generated parsers in gdb.  Note that these are only the variables
-   produced by yacc.  If other parser generators (bison, byacc, etc) produce
-   additional global names that conflict at link time, then those parser
-   generators need to be fixed instead of adding those names to this list. */
-
-#define	yymaxdepth c_maxdepth
-#define	yyparse	c_parse_internal
-#define	yylex	c_lex
-#define	yyerror	c_error
-#define	yylval	c_lval
-#define	yychar	c_char
-#define	yydebug	c_debug
-#define	yypact	c_pact	
-#define	yyr1	c_r1			
-#define	yyr2	c_r2			
-#define	yydef	c_def		
-#define	yychk	c_chk		
-#define	yypgo	c_pgo		
-#define	yyact	c_act		
-#define	yyexca	c_exca
-#define yyerrflag c_errflag
-#define yynerrs	c_nerrs
-#define	yyps	c_ps
-#define	yypv	c_pv
-#define	yys	c_s
-#define	yy_yys	c_yys
-#define	yystate	c_state
-#define	yytmp	c_tmp
-#define	yyv	c_v
-#define	yy_yyv	c_yyv
-#define	yyval	c_val
-#define	yylloc	c_lloc
-#define yyreds	c_reds		/* With YYDEBUG defined */
-#define yytoks	c_toks		/* With YYDEBUG defined */
-#define yyname	c_name		/* With YYDEBUG defined */
-#define yyrule	c_rule		/* With YYDEBUG defined */
-#define yylhs	c_yylhs
-#define yylen	c_yylen
-#define yydefred c_yydefred
-#define yydgoto	c_yydgoto
-#define yysindex c_yysindex
-#define yyrindex c_yyrindex
-#define yygindex c_yygindex
-#define yytable	 c_yytable
-#define yycheck	 c_yycheck
-#define yyss	c_yyss
-#define yysslim	c_yysslim
-#define yyssp	c_yyssp
-#define yystacksize c_yystacksize
-#define yyvs	c_yyvs
-#define yyvsp	c_yyvsp
-
-#ifndef YYDEBUG
-#define	YYDEBUG 1		/* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+   etc).  */
+#define GDB_YY_REMAP_PREFIX c_
+#include "yy-remap.h"
 
 /* The state of the parser, used internally when we are parsing the
    expression.  */
diff --git a/gdb/c-lang.c b/gdb/c-lang.c
index d8d78fd..8192e97 100644
--- a/gdb/c-lang.c
+++ b/gdb/c-lang.c
@@ -835,7 +835,7 @@ const struct language_defn c_language_defn =
   macro_expansion_c,
   &exp_descriptor_c,
   c_parse,
-  c_error,
+  c_yyerror,
   null_post_parser,
   c_printchar,			/* Print a character constant */
   c_printstr,			/* Function to print string constant */
@@ -962,7 +962,7 @@ const struct language_defn cplus_language_defn =
   macro_expansion_c,
   &exp_descriptor_c,
   c_parse,
-  c_error,
+  c_yyerror,
   null_post_parser,
   c_printchar,			/* Print a character constant */
   c_printstr,			/* Function to print string constant */
@@ -1007,7 +1007,7 @@ const struct language_defn asm_language_defn =
   macro_expansion_c,
   &exp_descriptor_c,
   c_parse,
-  c_error,
+  c_yyerror,
   null_post_parser,
   c_printchar,			/* Print a character constant */
   c_printstr,			/* Function to print string constant */
@@ -1057,7 +1057,7 @@ const struct language_defn minimal_language_defn =
   macro_expansion_c,
   &exp_descriptor_c,
   c_parse,
-  c_error,
+  c_yyerror,
   null_post_parser,
   c_printchar,			/* Print a character constant */
   c_printstr,			/* Function to print string constant */
diff --git a/gdb/c-lang.h b/gdb/c-lang.h
index 94861f5..bf50afc 100644
--- a/gdb/c-lang.h
+++ b/gdb/c-lang.h
@@ -63,7 +63,7 @@ DEF_ENUM_FLAGS_TYPE (enum c_string_type_values, c_string_type);
 
 extern int c_parse (struct parser_state *);
 
-extern void c_error (char *);
+extern void c_yyerror (char *);
 
 extern int c_parse_escape (const char **, struct obstack *);
 
diff --git a/gdb/d-exp.y b/gdb/d-exp.y
index 54c01c5..e7b11e7 100644
--- a/gdb/d-exp.y
+++ b/gdb/d-exp.y
@@ -55,65 +55,10 @@
 #define parse_type(ps) builtin_type (parse_gdbarch (ps))
 #define parse_d_type(ps) builtin_d_type (parse_gdbarch (ps))
 
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
-   as well as gratuitiously global symbol names, so we can have multiple
-   yacc generated parsers in gdb.  Note that these are only the variables
-   produced by yacc.  If other parser generators (bison, byacc, etc) produce
-   additional global names that conflict at link time, then those parser
-   generators need to be fixed instead of adding those names to this list.  */
-
-#define	yymaxdepth d_maxdepth
-#define	yyparse	d_parse_internal
-#define	yylex	d_lex
-#define	yyerror	d_error
-#define	yylval	d_lval
-#define	yychar	d_char
-#define	yydebug	d_debug
-#define	yypact	d_pact
-#define	yyr1	d_r1
-#define	yyr2	d_r2
-#define	yydef	d_def
-#define	yychk	d_chk
-#define	yypgo	d_pgo
-#define	yyact	d_act
-#define	yyexca	d_exca
-#define	yyerrflag d_errflag
-#define	yynerrs	d_nerrs
-#define	yyps	d_ps
-#define	yypv	d_pv
-#define	yys	d_s
-#define	yy_yys	d_yys
-#define	yystate	d_state
-#define	yytmp	d_tmp
-#define	yyv	d_v
-#define	yy_yyv	d_yyv
-#define	yyval	d_val
-#define	yylloc	d_lloc
-#define	yyreds	d_reds	/* With YYDEBUG defined */
-#define	yytoks	d_toks	/* With YYDEBUG defined */
-#define	yyname	d_name	/* With YYDEBUG defined */
-#define	yyrule	d_rule	/* With YYDEBUG defined */
-#define	yylhs	d_yylhs
-#define	yylen	d_yylen
-#define	yydefre	d_yydefred
-#define	yydgoto	d_yydgoto
-#define	yysindex d_yysindex
-#define	yyrindex d_yyrindex
-#define	yygindex d_yygindex
-#define	yytable	d_yytable
-#define	yycheck	d_yycheck
-#define	yyss	d_yyss
-#define	yysslim	d_yysslim
-#define	yyssp	d_yyssp
-#define	yystacksize d_yystacksize
-#define	yyvs	d_yyvs
-#define	yyvsp	d_yyvsp
-
-#ifndef YYDEBUG
-#define YYDEBUG 1	/* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+   etc).  */
+#define GDB_YY_REMAP_PREFIX d_
+#include "yy-remap.h"
 
 /* The state of the parser, used internally when we are parsing the
    expression.  */
diff --git a/gdb/d-lang.c b/gdb/d-lang.c
index e8a08e1..0075fea 100644
--- a/gdb/d-lang.c
+++ b/gdb/d-lang.c
@@ -201,7 +201,7 @@ static const struct language_defn d_language_defn =
   macro_expansion_no,
   &exp_descriptor_c,
   d_parse,
-  d_error,
+  d_yyerror,
   null_post_parser,
   c_printchar,			/* Print a character constant.  */
   c_printstr,			/* Function to print string constant.  */
diff --git a/gdb/d-lang.h b/gdb/d-lang.h
index 8f63f51..74be7a5 100644
--- a/gdb/d-lang.h
+++ b/gdb/d-lang.h
@@ -58,7 +58,7 @@ struct builtin_d_type
 
 extern int d_parse (struct parser_state *);
 
-extern void d_error (char *);
+extern void d_yyerror (char *);
 
 /* Defined in d-lang.c  */
 
diff --git a/gdb/f-exp.y b/gdb/f-exp.y
index 4faac32..cd659a1 100644
--- a/gdb/f-exp.y
+++ b/gdb/f-exp.y
@@ -57,65 +57,10 @@
 #define parse_type(ps) builtin_type (parse_gdbarch (ps))
 #define parse_f_type(ps) builtin_f_type (parse_gdbarch (ps))
 
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
-   as well as gratuitiously global symbol names, so we can have multiple
-   yacc generated parsers in gdb.  Note that these are only the variables
-   produced by yacc.  If other parser generators (bison, byacc, etc) produce
-   additional global names that conflict at link time, then those parser
-   generators need to be fixed instead of adding those names to this list.  */
-
-#define	yymaxdepth f_maxdepth
-#define	yyparse f_parse_internal
-#define	yylex	f_lex
-#define	yyerror	f_error
-#define	yylval	f_lval
-#define	yychar	f_char
-#define	yydebug	f_debug
-#define	yypact	f_pact	
-#define	yyr1	f_r1			
-#define	yyr2	f_r2			
-#define	yydef	f_def		
-#define	yychk	f_chk		
-#define	yypgo	f_pgo		
-#define	yyact	f_act		
-#define	yyexca	f_exca
-#define yyerrflag f_errflag
-#define yynerrs	f_nerrs
-#define	yyps	f_ps
-#define	yypv	f_pv
-#define	yys	f_s
-#define	yy_yys	f_yys
-#define	yystate	f_state
-#define	yytmp	f_tmp
-#define	yyv	f_v
-#define	yy_yyv	f_yyv
-#define	yyval	f_val
-#define	yylloc	f_lloc
-#define yyreds	f_reds		/* With YYDEBUG defined */
-#define yytoks	f_toks		/* With YYDEBUG defined */
-#define yyname	f_name		/* With YYDEBUG defined */
-#define yyrule	f_rule		/* With YYDEBUG defined */
-#define yylhs	f_yylhs
-#define yylen	f_yylen
-#define yydefred f_yydefred
-#define yydgoto	f_yydgoto
-#define yysindex f_yysindex
-#define yyrindex f_yyrindex
-#define yygindex f_yygindex
-#define yytable	 f_yytable
-#define yycheck	 f_yycheck
-#define yyss	f_yyss
-#define yysslim	f_yysslim
-#define yyssp	f_yyssp
-#define yystacksize f_yystacksize
-#define yyvs	f_yyvs
-#define yyvsp	f_yyvsp
-
-#ifndef YYDEBUG
-#define	YYDEBUG	1		/* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+   etc).  */
+#define GDB_YY_REMAP_PREFIX f_
+#include "yy-remap.h"
 
 /* The state of the parser, used internally when we are parsing the
    expression.  */
diff --git a/gdb/f-lang.c b/gdb/f-lang.c
index 9854eb9..22c308f 100644
--- a/gdb/f-lang.c
+++ b/gdb/f-lang.c
@@ -246,7 +246,7 @@ const struct language_defn f_language_defn =
   macro_expansion_no,
   &exp_descriptor_standard,
   f_parse,			/* parser */
-  f_error,			/* parser error function */
+  f_yyerror,			/* parser error function */
   null_post_parser,
   f_printchar,			/* Print character constant */
   f_printstr,			/* function to print string constant */
diff --git a/gdb/f-lang.h b/gdb/f-lang.h
index eeca107..45df770 100644
--- a/gdb/f-lang.h
+++ b/gdb/f-lang.h
@@ -25,7 +25,7 @@ struct parser_state;
 
 extern int f_parse (struct parser_state *);
 
-extern void f_error (char *);	/* Defined in f-exp.y */
+extern void f_yyerror (char *);	/* Defined in f-exp.y */
 
 extern void f_print_type (struct type *, const char *, struct ui_file *, int,
 			  int, const struct type_print_options *);
diff --git a/gdb/go-exp.y b/gdb/go-exp.y
index c4ea0f0..1b0fe5b 100644
--- a/gdb/go-exp.y
+++ b/gdb/go-exp.y
@@ -67,59 +67,10 @@
 
 #define parse_type(ps) builtin_type (parse_gdbarch (ps))
 
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
-   as well as gratuitiously global symbol names, so we can have multiple
-   yacc generated parsers in gdb.  Note that these are only the variables
-   produced by yacc.  If other parser generators (bison, byacc, etc) produce
-   additional global names that conflict at link time, then those parser
-   generators need to be fixed instead of adding those names to this list.  */
-
-#define	yymaxdepth go_maxdepth
-#define	yyparse	go_parse_internal
-#define	yylex	go_lex
-#define	yyerror	go_error
-#define	yylval	go_lval
-#define	yychar	go_char
-#define	yydebug	go_debug
-#define	yypact	go_pact
-#define	yyr1	go_r1
-#define	yyr2	go_r2
-#define	yydef	go_def
-#define	yychk	go_chk
-#define	yypgo	go_pgo
-#define	yyact	go_act
-#define	yyexca	go_exca
-#define yyerrflag go_errflag
-#define yynerrs	go_nerrs
-#define	yyps	go_ps
-#define	yypv	go_pv
-#define	yys	go_s
-#define	yy_yys	go_yys
-#define	yystate	go_state
-#define	yytmp	go_tmp
-#define	yyv	go_v
-#define	yy_yyv	go_yyv
-#define	yyval	go_val
-#define	yylloc	go_lloc
-#define yyreds	go_reds		/* With YYDEBUG defined */
-#define yytoks	go_toks		/* With YYDEBUG defined */
-#define yyname	go_name		/* With YYDEBUG defined */
-#define yyrule	go_rule		/* With YYDEBUG defined */
-#define yylhs	go_yylhs
-#define yylen	go_yylen
-#define yydefred go_yydefred
-#define yydgoto	go_yydgoto
-#define yysindex go_yysindex
-#define yyrindex go_yyrindex
-#define yygindex go_yygindex
-#define yytable	 go_yytable
-#define yycheck	 go_yycheck
-
-#ifndef YYDEBUG
-#define	YYDEBUG 1		/* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+   etc).  */
+#define GDB_YY_REMAP_PREFIX go_
+#include "yy-remap.h"
 
 /* The state of the parser, used internally when we are parsing the
    expression.  */
diff --git a/gdb/go-lang.c b/gdb/go-lang.c
index 96be458..84a366a 100644
--- a/gdb/go-lang.c
+++ b/gdb/go-lang.c
@@ -567,7 +567,7 @@ static const struct language_defn go_language_defn =
   macro_expansion_no,
   &exp_descriptor_c,
   go_parse,
-  go_error,
+  go_yyerror,
   null_post_parser,
   c_printchar,			/* Print a character constant.  */
   c_printstr,			/* Function to print string constant.  */
diff --git a/gdb/go-lang.h b/gdb/go-lang.h
index 49a3580..5eb298e 100644
--- a/gdb/go-lang.h
+++ b/gdb/go-lang.h
@@ -60,7 +60,7 @@ enum go_type
 
 extern int go_parse (struct parser_state *);
 
-extern void go_error (char *);
+extern void go_yyerror (char *);
 
 /* Defined in go-lang.c.  */
 
diff --git a/gdb/jv-exp.y b/gdb/jv-exp.y
index 951ef49..79b8127 100644
--- a/gdb/jv-exp.y
+++ b/gdb/jv-exp.y
@@ -51,65 +51,10 @@
 #define parse_type(ps) builtin_type (parse_gdbarch (ps))
 #define parse_java_type(ps) builtin_java_type (parse_gdbarch (ps))
 
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
-   as well as gratuitiously global symbol names, so we can have multiple
-   yacc generated parsers in gdb.  Note that these are only the variables
-   produced by yacc.  If other parser generators (bison, byacc, etc) produce
-   additional global names that conflict at link time, then those parser
-   generators need to be fixed instead of adding those names to this list.  */
-
-#define	yymaxdepth java_maxdepth
-#define	yyparse	java_parse_internal
-#define	yylex	java_lex
-#define	yyerror	java_error
-#define	yylval	java_lval
-#define	yychar	java_char
-#define	yydebug	java_debug
-#define	yypact	java_pact	
-#define	yyr1	java_r1			
-#define	yyr2	java_r2			
-#define	yydef	java_def		
-#define	yychk	java_chk		
-#define	yypgo	java_pgo		
-#define	yyact	java_act		
-#define	yyexca	java_exca
-#define yyerrflag java_errflag
-#define yynerrs	java_nerrs
-#define	yyps	java_ps
-#define	yypv	java_pv
-#define	yys	java_s
-#define	yy_yys	java_yys
-#define	yystate	java_state
-#define	yytmp	java_tmp
-#define	yyv	java_v
-#define	yy_yyv	java_yyv
-#define	yyval	java_val
-#define	yylloc	java_lloc
-#define yyreds	java_reds		/* With YYDEBUG defined */
-#define yytoks	java_toks		/* With YYDEBUG defined */
-#define yyname	java_name		/* With YYDEBUG defined */
-#define yyrule	java_rule		/* With YYDEBUG defined */
-#define yylhs	java_yylhs
-#define yylen	java_yylen
-#define yydefred java_yydefred
-#define yydgoto	java_yydgoto
-#define yysindex java_yysindex
-#define yyrindex java_yyrindex
-#define yygindex java_yygindex
-#define yytable	 java_yytable
-#define yycheck	 java_yycheck
-#define yyss	java_yyss
-#define yysslim	java_yysslim
-#define yyssp	java_yyssp
-#define yystacksize java_yystacksize
-#define yyvs	java_yyvs
-#define yyvsp	java_yyvsp
-
-#ifndef YYDEBUG
-#define	YYDEBUG 1		/* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+   etc).  */
+#define GDB_YY_REMAP_PREFIX java_
+#include "yy-remap.h"
 
 /* The state of the parser, used internally when we are parsing the
    expression.  */
diff --git a/gdb/jv-lang.c b/gdb/jv-lang.c
index 2355c1f..14aa0e0 100644
--- a/gdb/jv-lang.c
+++ b/gdb/jv-lang.c
@@ -1173,7 +1173,7 @@ const struct language_defn java_language_defn =
   macro_expansion_no,
   &exp_descriptor_java,
   java_parse,
-  java_error,
+  java_yyerror,
   null_post_parser,
   java_printchar,		/* Print a character constant */
   java_printstr,		/* Function to print string constant */
diff --git a/gdb/jv-lang.h b/gdb/jv-lang.h
index 63b257b..7183bd6 100644
--- a/gdb/jv-lang.h
+++ b/gdb/jv-lang.h
@@ -26,7 +26,7 @@ struct parser_state;
 
 extern int java_parse (struct parser_state *); /* Defined in jv-exp.y */
 
-extern void java_error (char *);	/* Defined in jv-exp.y */
+extern void java_yyerror (char *);	/* Defined in jv-exp.y */
 
 struct builtin_java_type
 {
diff --git a/gdb/m2-exp.y b/gdb/m2-exp.y
index a527440..a8b431e 100644
--- a/gdb/m2-exp.y
+++ b/gdb/m2-exp.y
@@ -51,65 +51,10 @@
 #define parse_type(ps) builtin_type (parse_gdbarch (ps))
 #define parse_m2_type(ps) builtin_m2_type (parse_gdbarch (ps))
 
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
-   as well as gratuitiously global symbol names, so we can have multiple
-   yacc generated parsers in gdb.  Note that these are only the variables
-   produced by yacc.  If other parser generators (bison, byacc, etc) produce
-   additional global names that conflict at link time, then those parser
-   generators need to be fixed instead of adding those names to this list.  */
-
-#define	yymaxdepth m2_maxdepth
-#define	yyparse	m2_parse_internal
-#define	yylex	m2_lex
-#define	yyerror	m2_error
-#define	yylval	m2_lval
-#define	yychar	m2_char
-#define	yydebug	m2_debug
-#define	yypact	m2_pact
-#define	yyr1	m2_r1
-#define	yyr2	m2_r2
-#define	yydef	m2_def
-#define	yychk	m2_chk
-#define	yypgo	m2_pgo
-#define	yyact	m2_act
-#define	yyexca	m2_exca
-#define	yyerrflag m2_errflag
-#define	yynerrs	m2_nerrs
-#define	yyps	m2_ps
-#define	yypv	m2_pv
-#define	yys	m2_s
-#define	yy_yys	m2_yys
-#define	yystate	m2_state
-#define	yytmp	m2_tmp
-#define	yyv	m2_v
-#define	yy_yyv	m2_yyv
-#define	yyval	m2_val
-#define	yylloc	m2_lloc
-#define	yyreds	m2_reds		/* With YYDEBUG defined */
-#define	yytoks	m2_toks		/* With YYDEBUG defined */
-#define yyname	m2_name		/* With YYDEBUG defined */
-#define yyrule	m2_rule		/* With YYDEBUG defined */
-#define yylhs	m2_yylhs
-#define yylen	m2_yylen
-#define yydefred m2_yydefred
-#define yydgoto	m2_yydgoto
-#define yysindex m2_yysindex
-#define yyrindex m2_yyrindex
-#define yygindex m2_yygindex
-#define yytable	 m2_yytable
-#define yycheck	 m2_yycheck
-#define yyss	m2_yyss
-#define yysslim	m2_yysslim
-#define yyssp	m2_yyssp
-#define yystacksize m2_yystacksize
-#define yyvs	m2_yyvs
-#define yyvsp	m2_yyvsp
-
-#ifndef YYDEBUG
-#define	YYDEBUG 1		/* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+   etc).  */
+#define GDB_YY_REMAP_PREFIX m2_
+#include "yy-remap.h"
 
 /* The state of the parser, used internally when we are parsing the
    expression.  */
diff --git a/gdb/m2-lang.c b/gdb/m2-lang.c
index bbf3ac7..917da15 100644
--- a/gdb/m2-lang.c
+++ b/gdb/m2-lang.c
@@ -365,7 +365,7 @@ const struct language_defn m2_language_defn =
   macro_expansion_no,
   &exp_descriptor_modula2,
   m2_parse,			/* parser */
-  m2_error,			/* parser error function */
+  m2_yyerror,			/* parser error function */
   null_post_parser,
   m2_printchar,			/* Print character constant */
   m2_printstr,			/* function to print string constant */
diff --git a/gdb/m2-lang.h b/gdb/m2-lang.h
index 7a03ee8..b749b21 100644
--- a/gdb/m2-lang.h
+++ b/gdb/m2-lang.h
@@ -22,7 +22,7 @@ struct parser_state;
 
 extern int m2_parse (struct parser_state *); /* Defined in m2-exp.y */
 
-extern void m2_error (char *);	/* Defined in m2-exp.y */
+extern void m2_yyerror (char *);	/* Defined in m2-exp.y */
 
 /* Defined in m2-typeprint.c */
 extern void m2_print_type (struct type *, const char *, struct ui_file *, int,
diff --git a/gdb/objc-lang.c b/gdb/objc-lang.c
index f58b1c4..34f90e8 100644
--- a/gdb/objc-lang.c
+++ b/gdb/objc-lang.c
@@ -360,7 +360,7 @@ const struct language_defn objc_language_defn = {
   macro_expansion_c,
   &exp_descriptor_standard,
   c_parse,
-  c_error,
+  c_yyerror,
   null_post_parser,
   c_printchar,		       /* Print a character constant */
   c_printstr,		       /* Function to print string constant */
diff --git a/gdb/opencl-lang.c b/gdb/opencl-lang.c
index dfb68c0..7799735 100644
--- a/gdb/opencl-lang.c
+++ b/gdb/opencl-lang.c
@@ -1054,7 +1054,7 @@ const struct language_defn opencl_language_defn =
   macro_expansion_c,
   &exp_descriptor_opencl,
   c_parse,
-  c_error,
+  c_yyerror,
   null_post_parser,
   c_printchar,			/* Print a character constant */
   c_printstr,			/* Function to print string constant */
diff --git a/gdb/p-exp.y b/gdb/p-exp.y
index 8cbe5de..fa6b22c 100644
--- a/gdb/p-exp.y
+++ b/gdb/p-exp.y
@@ -58,65 +58,10 @@
 
 #define parse_type(ps) builtin_type (parse_gdbarch (ps))
 
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
-   as well as gratuitiously global symbol names, so we can have multiple
-   yacc generated parsers in gdb.  Note that these are only the variables
-   produced by yacc.  If other parser generators (bison, byacc, etc) produce
-   additional global names that conflict at link time, then those parser
-   generators need to be fixed instead of adding those names to this list.  */
-
-#define	yymaxdepth pascal_maxdepth
-#define	yyparse	pascal_parse_internal
-#define	yylex	pascal_lex
-#define	yyerror	pascal_error
-#define	yylval	pascal_lval
-#define	yychar	pascal_char
-#define	yydebug	pascal_debug
-#define	yypact	pascal_pact
-#define	yyr1	pascal_r1
-#define	yyr2	pascal_r2
-#define	yydef	pascal_def
-#define	yychk	pascal_chk
-#define	yypgo	pascal_pgo
-#define	yyact	pascal_act
-#define	yyexca	pascal_exca
-#define yyerrflag pascal_errflag
-#define yynerrs	pascal_nerrs
-#define	yyps	pascal_ps
-#define	yypv	pascal_pv
-#define	yys	pascal_s
-#define	yy_yys	pascal_yys
-#define	yystate	pascal_state
-#define	yytmp	pascal_tmp
-#define	yyv	pascal_v
-#define	yy_yyv	pascal_yyv
-#define	yyval	pascal_val
-#define	yylloc	pascal_lloc
-#define yyreds	pascal_reds		/* With YYDEBUG defined */
-#define yytoks	pascal_toks		/* With YYDEBUG defined */
-#define yyname	pascal_name		/* With YYDEBUG defined */
-#define yyrule	pascal_rule		/* With YYDEBUG defined */
-#define yylhs	pascal_yylhs
-#define yylen	pascal_yylen
-#define yydefred pascal_yydefred
-#define yydgoto	pascal_yydgoto
-#define yysindex pascal_yysindex
-#define yyrindex pascal_yyrindex
-#define yygindex pascal_yygindex
-#define yytable	 pascal_yytable
-#define yycheck	 pascal_yycheck
-#define yyss	pascal_yyss
-#define yysslim	pascal_yysslim
-#define yyssp	pascal_yyssp
-#define yystacksize pascal_yystacksize
-#define yyvs	pascal_yyvs
-#define yyvsp	pascal_yyvsp
-
-#ifndef YYDEBUG
-#define	YYDEBUG 1		/* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+   etc).  */
+#define GDB_YY_REMAP_PREFIX pascal_
+#include "yy-remap.h"
 
 /* The state of the parser, used internally when we are parsing the
    expression.  */
diff --git a/gdb/p-lang.c b/gdb/p-lang.c
index a7aeb36..8ff2682 100644
--- a/gdb/p-lang.c
+++ b/gdb/p-lang.c
@@ -423,7 +423,7 @@ const struct language_defn pascal_language_defn =
   macro_expansion_no,
   &exp_descriptor_standard,
   pascal_parse,
-  pascal_error,
+  pascal_yyerror,
   null_post_parser,
   pascal_printchar,		/* Print a character constant */
   pascal_printstr,		/* Function to print string constant */
diff --git a/gdb/p-lang.h b/gdb/p-lang.h
index 5a65faa..d862b49 100644
--- a/gdb/p-lang.h
+++ b/gdb/p-lang.h
@@ -27,7 +27,7 @@ extern const char *pascal_main_name (void);
 
 extern int pascal_parse (struct parser_state *); /* Defined in p-exp.y */
 
-extern void pascal_error (char *);	/* Defined in p-exp.y */
+extern void pascal_yyerror (char *);	/* Defined in p-exp.y */
 
 /* Defined in p-typeprint.c */
 extern void pascal_print_type (struct type *, const char *, struct ui_file *,
diff --git a/gdb/yy-remap.h b/gdb/yy-remap.h
new file mode 100644
index 0000000..71fa946
--- /dev/null
+++ b/gdb/yy-remap.h
@@ -0,0 +1,92 @@
+/* Copyright (C) 1986-2016 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+   etc), as well as gratuitiously global symbol names, so we can have
+   multiple yacc generated parsers in gdb.  Note that these are only
+   the variables produced by yacc.  If other parser generators (bison,
+   byacc, etc) produce additional global names that conflict at link
+   time, then those parser generators need to be fixed instead of
+   adding those names to this list.  */
+
+/* NOTE: This is clumsy since BISON and FLEX provide --prefix options.
+   We are maintaining it to accommodate systems without BISON.  */
+
+/* Define GDB_YY_REMAP_PREFIX to the desired remapping prefix before
+   including this file.  */
+#ifndef GDB_YY_REMAP_PREFIX
+# error "GDB_YY_REMAP_PREFIX not defined"
+#endif
+
+#define GDB_YY_REMAP_2(PREFIX, YYSYM) PREFIX ## YYSYM
+#define GDB_YY_REMAP_1(PREFIX, YYSYM) GDB_YY_REMAP_2 (PREFIX, YYSYM)
+#define GDB_YY_REMAP(YYSYM) GDB_YY_REMAP_1 (GDB_YY_REMAP_PREFIX, YYSYM)
+
+#define yymaxdepth	GDB_YY_REMAP (yymaxdepth)
+#define yyparse		GDB_YY_REMAP (yyparse)
+#define yylex		GDB_YY_REMAP (yylex)
+#define yyerror		GDB_YY_REMAP (yyerror)
+#define yylval		GDB_YY_REMAP (yylval)
+#define yychar		GDB_YY_REMAP (yychar)
+#define yydebug		GDB_YY_REMAP (yydebug)
+#define yypact		GDB_YY_REMAP (yypact)
+#define yyr1		GDB_YY_REMAP (yyr1)
+#define yyr2		GDB_YY_REMAP (yyr2)
+#define yydef		GDB_YY_REMAP (yydef)
+#define yychk		GDB_YY_REMAP (yychk)
+#define yypgo		GDB_YY_REMAP (yypgo)
+#define yyact		GDB_YY_REMAP (yyact)
+#define yyexca		GDB_YY_REMAP (yyexca)
+#define yyerrflag	GDB_YY_REMAP (yyerrflag)
+#define yynerrs		GDB_YY_REMAP (yynerrs)
+#define yyps		GDB_YY_REMAP (yyps)
+#define yypv		GDB_YY_REMAP (yypv)
+#define yys		GDB_YY_REMAP (yys)
+#define yy_yys		GDB_YY_REMAP (yy_yys)
+#define yystate		GDB_YY_REMAP (yystate)
+#define yytmp		GDB_YY_REMAP (yytmp)
+#define yyv		GDB_YY_REMAP (yyv)
+#define yy_yyv		GDB_YY_REMAP (yy_yyv)
+#define yyval		GDB_YY_REMAP (yyval)
+#define yylloc		GDB_YY_REMAP (yylloc)
+#define yyreds		GDB_YY_REMAP (yyreds)  /* With YYDEBUG defined */
+#define yytoks		GDB_YY_REMAP (yytoks)  /* With YYDEBUG defined */
+#define yyname		GDB_YY_REMAP (yyname)  /* With YYDEBUG defined */
+#define yyrule		GDB_YY_REMAP (yyrule)  /* With YYDEBUG defined */
+#define yylhs		GDB_YY_REMAP (yylhs)
+#define yylen		GDB_YY_REMAP (yylen)
+#define yydefred	GDB_YY_REMAP (yydefred)
+#define yydgoto		GDB_YY_REMAP (yydgoto)
+#define yysindex	GDB_YY_REMAP (yysindex)
+#define yyrindex	GDB_YY_REMAP (yyrindex)
+#define yygindex	GDB_YY_REMAP (yygindex)
+#define yytable		GDB_YY_REMAP (yytable)
+#define yycheck		GDB_YY_REMAP (yycheck)
+#define yyss		GDB_YY_REMAP (yyss)
+#define yysslim		GDB_YY_REMAP (yysslim)
+#define yyssp		GDB_YY_REMAP (yyssp)
+#define yystacksize	GDB_YY_REMAP (yystacksize)
+#define yyvs		GDB_YY_REMAP (yyvs)
+#define yyvsp		GDB_YY_REMAP (yyvsp)
+
+/* The following are common to all parsers.  */
+
+#ifndef YYDEBUG
+# define YYDEBUG 1  /* Default to yydebug support */
+#endif
+
+#define YYFPRINTF parser_fprintf