From 9160a9eb2662fe08cac68618544203f030a8ce08 Mon Sep 17 00:00:00 2001
From: Matthew Waters <matthew@centricular.com>
Date: Thu, 27 Jul 2023 16:42:51 +1000
Subject: [PATCH] parse: avoid -Werror=unused-but-set-variable

bison seems to generate a yyparse() with one unsed but set variable in it.
Avoid that.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5110>
---
 subprojects/gstreamer/gst/parse/grammar.y.in | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/subprojects/gstreamer/gst/parse/grammar.y.in b/subprojects/gstreamer/gst/parse/grammar.y.in
index a3a67d4a3c..54a0b3e6d8 100644
--- a/subprojects/gstreamer/gst/parse/grammar.y.in
+++ b/subprojects/gstreamer/gst/parse/grammar.y.in
@@ -1223,6 +1223,9 @@ static int yyerror (void *scanner, graph_t *graph, const char *s);
 element: IDENTIFIER              {
             $$ = gst_parse_element_new();
             $$->factory_name = $1;
+
+            /* silence unused but set warnings/errors */
+            (void) yynerrs;
                                               }
   | element PRESET	          {
             $$->presets = g_slist_append ($$->presets, $2);