SDL: SDL_gpu_d3d11.c: define D3D11_FORMAT_SUPPORT2_UAV_TYPED_LOAD for old toolchains

SDL Commits
1 
From 1088ea55faccc2b1ae8a5884eee6b87ee1a92744 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Fri, 27 Sep 2024 23:55:02 +0300
Subject: [PATCH] SDL_gpu_d3d11.c: define D3D11_FORMAT_SUPPORT2_UAV_TYPED_LOAD
 for old toolchains

---
 src/gpu/d3d11/SDL_gpu_d3d11.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gpu/d3d11/SDL_gpu_d3d11.c b/src/gpu/d3d11/SDL_gpu_d3d11.c
index 877621441033b..90402ede29203 100644
--- a/src/gpu/d3d11/SDL_gpu_d3d11.c
+++ b/src/gpu/d3d11/SDL_gpu_d3d11.c
@@ -5836,6 +5836,7 @@ static bool D3D11_SupportsTextureFormat(
         // TYPED_UNORDERED_ACCESS_VIEW implies support for typed UAV stores
         return false;
     }
+    #define D3D11_FORMAT_SUPPORT2_UAV_TYPED_LOAD 0x40 /* for old toolchains */
     if ((usage & (SDL_GPU_TEXTUREUSAGE_COMPUTE_STORAGE_SIMULTANEOUS_READ_WRITE) && !(formatSupport2.OutFormatSupport2 & D3D11_FORMAT_SUPPORT2_UAV_TYPED_LOAD))) {
         return false;
     }