lib: event-filter-parser.y - Add workaround for nerrs being unused warning

Fixes with clang-17:
warning: variable 'event_filter_parser_nerrs' set but not used

diff --git a/src/lib/event-filter-parser.y b/src/lib/event-filter-parser.y
index 61aae104771ab2018a361ecc8865ad3dfc25842e..2b75a49bcc9d210b6a6ea6037a8b8c2f9eecda95 100644 (file)
--- a/src/lib/event-filter-parser.y
+++ b/src/lib/event-filter-parser.y
@@ -168,6 +168,8 @@ key_value : key op value    {
                                        $$ = key_value(state, $1, $3, $2);
                                        if ($$ == NULL) {
                                                yyerror(state, state->error);
+                                               /* avoid compiler warning about yynerrs being set, but not used */
+                                               (void)yynerrs;
                                                YYERROR;
                                        }
                                }