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Date: Mon, 03 Feb 2014 13:51:00 -0000
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From: Mark Kettenis <mark.kettenis@xs4all.nl>
To: gdb-patches@sourceware.org
Subject: [PATCH] Fix building with yacc
X-SW-Source: 2014-02/txt/msg00015.txt.bz2

OpenBSD yacc doesn't use YYPRINT, so we end up with gcc complaining
that c_print_token is defined but not used.  As far as I can determine
YYPRINT is a bison-ism, so the diff below wraps c_print_token in
#ifdef YYBISON.

ok?


diff --git a/gdb/c-exp.y b/gdb/c-exp.y
index 277242e..b76a06b 100644
--- 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
@@ -3201,10 +3203,12 @@ 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.  */
 
-static void
+void
 c_print_token (FILE *file, int type, YYSTYPE value)
 {
   switch (type)
@@ -3255,6 +3259,8 @@ c_print_token (FILE *file, int type, YYSTYPE value)
     }
 }
 
+#endif
+
 void
 yyerror (char *msg)
 {