From 46bd24b4b03e25341c42c965b61665fbff402ea1 Mon Sep 17 00:00:00 2001
From: Rob Loach <robloach@gmail.com>
Date: Tue, 28 Apr 2026 17:25:13 -0400
Subject: [PATCH] libretro: Minor mutex fix

---
 src/physfs_platform_libretro.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/physfs_platform_libretro.c b/src/physfs_platform_libretro.c
index 4b63e2f8..5a14f0f1 100644
--- a/src/physfs_platform_libretro.c
+++ b/src/physfs_platform_libretro.c
@@ -208,7 +208,7 @@ void __PHYSFS_platformDestroyMutex(void *mutex)
 int __PHYSFS_platformGrabMutex(void *mutex)
 {
 #ifdef PHYSFS_PLATFORM_LIBRETRO_NO_THREADS
-    return 0;
+    return 1; /* Single-threaded, so we ignore this by returning success. */
 #else
     PthreadMutex *m = (PthreadMutex *) mutex;
     uintptr_t tid = sthread_get_current_thread_id();