SDL: rwops: Fixed another Windows build failure.

From c63703129407e8bbd7d48f29836f7038c514b501 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Thu, 15 Dec 2022 00:16:02 -0500
Subject: [PATCH] rwops: Fixed another Windows build failure.

---
 src/audio/SDL_wave.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/audio/SDL_wave.c b/src/audio/SDL_wave.c
index 37b13b5d37ef..8d51d9e4a9de 100644
--- a/src/audio/SDL_wave.c
+++ b/src/audio/SDL_wave.c
@@ -1553,7 +1553,7 @@ static int WaveReadPartialChunkData(SDL_RWops *src, WaveChunk *chunk, size_t len
             return -2;
         }
 
-        chunk->size = SDL_RWread(src, chunk->data, length);
+        chunk->size = (size_t) SDL_RWread(src, chunk->data, length);
         if (chunk->size != length) {
             /* Expected to be handled by the caller. */
         }