Use noyywrap option in lex files.

ld	PR 20958
	* ldlex.l (option): Add noyywrap
	(yywrap): Delete.
	* ldlex.h (yywrap): Delete prototype.

binutils
	PR 20958
	* syslex.l (option): Add noyywrap
	(yywrap): Delete.

binutils/ChangeLog

@@ -1,3 +1,9 @@
+2017-01-04  Dilan Palauzov  <dilyan.palauzov@aegee.org>
+
+	PR 20958
+	* syslex.l (option): Add noyywrap
+	(yywrap): Delete.
+
 2017-01-02  Alan Modra  <amodra@gmail.com>
 
 	Update year range in copyright notice of all files.

binutils/syslex.l

@@ -1,4 +1,4 @@
-%option noinput nounput
+%option noinput nounput noyywrap
 
 %{
 /* Copyright (C) 2001-2017 Free Software Foundation, Inc.
@@ -36,10 +36,6 @@
 #define YY_NO_UNPUT
 #endif
 
-#ifndef yywrap
-static int yywrap (void) { return 1; }
-#endif
-
 extern int yylex (void);
 %}
 %%

ld/ChangeLog

@@ -1,3 +1,10 @@
+2017-01-04  Dilan Palauzov  <dilyan.palauzov@aegee.org>
+
+	PR 20958
+	* ldlex.l (option): Add noyywrap
+	(yywrap): Delete.
+	* ldlex.h (yywrap): Delete prototype.
+
 2017-01-04  Alan Modra  <amodra@gmail.com>
 
 	* testsuite/ld-elf/audit.exp: Check for shared lib support.

ld/ldlex.h

@@ -182,9 +182,6 @@ extern const char* ldlex_filename (void);
 /* In lexsup.c.  */
 extern int lex_input (void);
 extern void lex_unput (int);
-#ifndef yywrap
-extern int yywrap (void);
-#endif
 extern void parse_args (unsigned, char **);
 
 #endif

ld/ldlex.l

@@ -1,4 +1,4 @@
-%option nounput
+%option nounput noyywrap
 
 %{
 
@@ -86,10 +86,6 @@ static void lex_warn_invalid (char *where, char *what);
 */
 #define RTOKEN(x)  {  yylval.token = x; return x; }
 
-/* Some versions of flex want this.  */
-#ifndef yywrap
-int yywrap (void) { return 1; }
-#endif
 %}
 
 %a 4000