From 484f724a30ed4af50d53ddbb4d308aa51e40c242 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 5 May 2026 11:37:03 +0200
Subject: [PATCH] thrdqueue.h: forward declare curl_thrdq unconditionally

This allows the unit tests to have a prototype involving such a struct
pointer - even when the build is done without threaded resolver.

Follow-up to 117d50b4bf48ca04908f87dd665ba

Closes #21503
---
 lib/thrdqueue.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/thrdqueue.h b/lib/thrdqueue.h
index d267f5d091..8bcdcee03a 100644
--- a/lib/thrdqueue.h
+++ b/lib/thrdqueue.h
@@ -26,10 +26,11 @@
 #include "curl_setup.h"
 #include "curlx/timediff.h"
 
+struct curl_thrdq;
+
 #ifdef USE_THREADS
 
 struct Curl_easy;
-struct curl_thrdq;
 
 typedef enum {
   CURL_THRDQ_EV_ITEM_DONE /* an item has been processed and is ready */