SDL_image: Fixed assert redefinition warning on Android

From 78f99ef7ff76c917bcec79e2012535320f0b3dfa Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Wed, 22 Feb 2023 16:18:11 -0800
Subject: [PATCH] Fixed assert redefinition warning on Android

---
 IMG_jpg.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/IMG_jpg.c b/IMG_jpg.c
index 94c30064..53a48e4a 100644
--- a/IMG_jpg.c
+++ b/IMG_jpg.c
@@ -667,10 +667,17 @@ SDL_Surface *IMG_LoadJPG_RW(SDL_RWops *src)
 /* Use tinyjpeg as a fallback if we don't have a hard dependency on libjpeg */
 #if SDL_IMAGE_SAVE_JPG && (defined(LOAD_JPG_DYNAMIC) || !defined(WANT_JPEGLIB))
 
-#define assert SDL_assert
+#ifdef assert
+#undef assert
+#endif
+#ifdef memcpy
 #undef memcpy
-#define memcpy SDL_memcpy
+#endif
+#ifdef memset
 #undef memset
+#endif
+#define assert SDL_assert
+#define memcpy SDL_memcpy
 #define memset SDL_memset
 
 #define ceilf SDL_ceilf