SDL: pthread: disable SetThreadPriority for OS/2 too

From c6c4d4211b10f57e902c6ed8d054f0dcbe44eded Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 11 Jan 2022 11:33:02 +0300
Subject: [PATCH] pthread: disable SetThreadPriority for OS/2 too

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

diff --git a/src/thread/pthread/SDL_systhread.c b/src/thread/pthread/SDL_systhread.c
index b5ab82dbfc2..41184de5203 100644
--- a/src/thread/pthread/SDL_systhread.c
+++ b/src/thread/pthread/SDL_systhread.c
@@ -186,7 +186,7 @@ SDL_ThreadID(void)
 int
 SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority)
 {
-#if __NACL__ || __RISCOS__
+#if __NACL__ || __RISCOS__ || __OS2__
     /* FIXME: Setting thread priority does not seem to be supported in NACL */
     return 0;
 #else