SDL: minor os/2 emx build fix. (54993)

From 549934b59aa01f6a44d2b43a58e9b35d983e3784 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 17 Mar 2026 05:02:50 +0300
Subject: [PATCH] minor os/2 emx build fix.

(cherry picked from commit a7d4b1996fab251461662a3497a9a84cd09795b2)
---
 src/video/os2/SDL_os2dive.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/video/os2/SDL_os2dive.c b/src/video/os2/SDL_os2dive.c
index f39d44382d744..457179eaf4d39 100644
--- a/src/video/os2/SDL_os2dive.c
+++ b/src/video/os2/SDL_os2dive.c
@@ -22,11 +22,13 @@
 #include "../SDL_sysvideo.h"
 #define INCL_WIN
 #define INCL_GPI
+#define INCL_DOSERRORS
+#define INCL_OS2MM
+#define INCL_MM_OS2
 #include <os2.h>
 #define  _MEERROR_H_
 #include <mmioos2.h>
 #include <os2me.h>
-#define INCL_MM_OS2
 #include <dive.h>
 #include <fourcc.h>
 #include "SDL_os2output.h"