From aad02e522dc0f34c9c07174344c4af827a262fec Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Mon, 15 Jun 2026 08:31:15 -0400
Subject: [PATCH] Avoid bison compiler warning for yynerrs

---
 src/parser/parser.yy | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/parser/parser.yy b/src/parser/parser.yy
index 02b6327..3889073 100644
--- a/src/parser/parser.yy
+++ b/src/parser/parser.yy
@@ -28,6 +28,12 @@ refptr<Scope> parser_scope;
 %locations
 %define parse.error verbose
 
+%initial-action {
+    /* Reference yynerrs so the generated parser does not warn that it is
+       set but never used; this grammar has no error-recovery rules. */
+    (void) yynerrs;
+}
+
 %token PLUS;
 %token MINUS;
 %token TIMES;