pthread: disable SetThreadPriority for OS/2 too
diff --git a/src/thread/pthread/SDL_systhread.c b/src/thread/pthread/SDL_systhread.c
index b5ab82d..41184de 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