SDL-1.2: minor os/2 emx build fix.

From 9bbf6f659314d2b213e7dce0c4ba22ee14670911 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 17 Mar 2026 05:02:24 +0300
Subject: [PATCH] minor os/2 emx build fix.

---
 src/cdrom/os2/SDL_syscdrom.c    | 1 +
 src/video/os2grop/SDL_os2dive.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/cdrom/os2/SDL_syscdrom.c b/src/cdrom/os2/SDL_syscdrom.c
index 0f35ad933..bdd957cb6 100644
--- a/src/cdrom/os2/SDL_syscdrom.c
+++ b/src/cdrom/os2/SDL_syscdrom.c
@@ -25,6 +25,7 @@
 
 /* Functions for system-level CD-ROM audio control */
 
+#define INCL_OS2MM
 #define INCL_MCIOS2
 #include <os2.h>
 #include <os2me.h>
diff --git a/src/video/os2grop/SDL_os2dive.c b/src/video/os2grop/SDL_os2dive.c
index ba614ed3d..3367c98aa 100644
--- a/src/video/os2grop/SDL_os2dive.c
+++ b/src/video/os2grop/SDL_os2dive.c
@@ -27,6 +27,7 @@
 #include "SDL_stdinc.h"
 
 #define INCL_OS2MM
+#define INCL_WIN
 #define INCL_GPI
 #define INCL_DOSERRORS
 #define INCL_DOSMEMMGR