Avoid bison-isms when using yacc.

YYPRINT is a bison-ism so c_print_token() ends up being unused when yacc is
used which makes gcc unhappy.  Make sure we only define YYPRINT and
c_print_token() when bison is used to generate the parser.

gdb/ChangeLog:

        * c-exp.y (YYPRINT, c_print_token): Only define if YYBISON is
        defined.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a6fa6fc..fcec355 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2014-02-05  Mark Kettenis  <kettenis@gnu.org>
+
+       * c-exp.y (YYPRINT, c_print_token): Only define if YYBISON is
+       defined.
+
 2014-02-05  Yao Qi  <yao@codesourcery.com>
 
        * remote.c (remote_pass_signals): Remove local 'buf' and use

diff --git a/gdb/c-exp.y b/gdb/c-exp.y
index 277242e..4704845 100644 (file)
--- a/gdb/c-exp.y
+++ b/gdb/c-exp.y
@@ -169,8 +169,10 @@ static struct stoken operator_stoken (const char *);
 static void check_parameter_typelist (VEC (type_ptr) *);
 static void write_destructor_name (struct stoken);
 
+#ifdef YYBISON
 static void c_print_token (FILE *file, int type, YYSTYPE value);
 #define YYPRINT(FILE, TYPE, VALUE) c_print_token (FILE, TYPE, VALUE)
+#endif
 %}
 
 %type <voidval> exp exp1 type_exp start variable qualified_name lcurly
@@ -3201,6 +3203,8 @@ c_parse (void)
   return result;
 }
 
+#ifdef YYBISON
+
 /* This is called via the YYPRINT macro when parser debugging is
    enabled.  It prints a token's value.  */
 
@@ -3255,6 +3259,8 @@ c_print_token (FILE *file, int type, YYSTYPE value)
     }
 }
 
+#endif
+
 void
 yyerror (char *msg)
 {