sdl12-compat: Fixed ABI change in https://github.com/libsdl-org/sdl12-compat/commit/52459d2b8a68f77afda504da4e93887c8ed1fbd0

From 0708d1e9a774fc2dca04af9805e660b1e53ebc24 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Thu, 8 Sep 2022 11:14:30 -0700
Subject: [PATCH] Fixed ABI change in
 https://github.com/libsdl-org/sdl12-compat/commit/52459d2b8a68f77afda504da4e93887c8ed1fbd0

---
 include/SDL/SDL_syswm.h | 7 ++++++-
 src/SDL12_compat.c      | 9 ++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/SDL/SDL_syswm.h b/include/SDL/SDL_syswm.h
index 4321a07a..c96d7865 100644
--- a/include/SDL/SDL_syswm.h
+++ b/include/SDL/SDL_syswm.h
@@ -32,6 +32,8 @@ real SDL-1.2 available to you. */
 
 #ifndef SDL_PROTOTYPES_ONLY
 
+typedef struct SDL_Window SDL_Window;
+
 #   if defined(__WIN32__)
 #       ifndef WIN32_LEAN_AND_MEAN
 #           define WIN32_LEAN_AND_MEAN
@@ -53,6 +55,7 @@ real SDL-1.2 available to you. */
             SDL_version version;
             HWND window;
             HGLRC hglrc;
+            SDL_Window *sdl2_window;
         } SDL_SysWMinfo;
 
 #       include "close_code.h"
@@ -92,6 +95,7 @@ real SDL-1.2 available to you. */
                     Display *gfxdisplay;
                 } x11;
             } info;
+            SDL_Window *sdl2_window;
         } SDL_SysWMinfo;
 
 #       include "close_code.h"
@@ -109,7 +113,8 @@ real SDL-1.2 available to you. */
         typedef struct SDL_SysWMinfo
         {
             SDL_version version;
-            void *data;
+            int data;
+            SDL_Window *sdl2_window;
         } SDL_SysWMinfo;
 
 #       include "close_code.h"
diff --git a/src/SDL12_compat.c b/src/SDL12_compat.c
index 2a379826..fa19762c 100644
--- a/src/SDL12_compat.c
+++ b/src/SDL12_compat.c
@@ -634,6 +634,7 @@ typedef struct SDL12_SysWMinfo
 #else
     int data;  /* unused at the moment. */
 #endif
+    SDL_Window *sdl2_window;
 } SDL12_SysWMinfo;
 
 typedef enum
@@ -6982,13 +6983,7 @@ SDL_GetWMInfo(SDL12_SysWMinfo *info12)
 
     if (info12->version.major > 1) {
         if (info12->version.major == 2) {
-#if defined(SDL_VIDEO_DRIVER_WINDOWS)
-            info12->window = (HWND)VideoWindow20;
-#elif defined(SDL_VIDEO_DRIVER_X11)
-            info12->info.x11.gfxdisplay = (Display *)VideoWindow20;
-#else
-            info12->data = (void *)VideoWindow20;
-#endif
+            info12->sdl2_window = VideoWindow20;
             return 1;
         }
         SDL20_SetError("Requested version is unsupported");