Modernise yyerror

Newer versions of bison emit a prototype for yyerror
	void yyerror (const char *);
This clashes with some of our old code that declares yyerror to return
an int.  Fix that in most cases by modernizing yyerror.  bfin-parse.y
uses the return value all over the place, so for there disable
generation of the prototype as specified by posix.

binutils/
	* arparse.y (yyerror): Return void.
	* dlltool.c (yyerror): Likewise.
	* dlltool.h (yyerror): Likewise.
	* sysinfo.y (yyerror): Likewise.
	* windmc.h (yyerror): Likewise.
	* mclex.c (mc_error): Extract from ..
	(yyerror): ..here, both now returning void.
gas/
	* config/bfin-parse.y (yyerror): Define.
	(yyerror): Make static.
	* itbl-parse.y (yyerror): Return void.
ld/
	* deffilep.y (def_error): Return void.

1 files changed, 2 insertions, 3 deletions

diff --git a/binutils/arparse.y b/binutils/arparse.y
index 5fee562..7ea5e7f 100644
--- a/binutils/arparse.y
+++ b/binutils/arparse.y
@@ -31,7 +31,7 @@
 #include "arsup.h"
 extern int verbose;
 extern int yylex (void);
-static int yyerror (const char *);
+static void yyerror (const char *);
 %}
 
 %union {
@@ -193,11 +193,10 @@ verbose_command:
 
 %%
 
-static int
+static void
 yyerror (const char *x ATTRIBUTE_UNUSED)
 {
   extern int linenumber;
 
   printf (_("Syntax error in archive script, line %d\n"), linenumber + 1);
-  return 0;
 }