Check if STBI_NEON already defined so no warning will be produced

plzombie · plzombie · commit e630c8343344 · 2023-12-21T21:19:51.000+03:00
diff --git a/stb_image.h b/stb_image.h
@@ -781,8 +781,10 @@ static int stbi__sse2_available(void)
 #undef STBI_NEON
 #endif
 #elif defined(STBI__ARM64_TARGET)
+#if !defined(STBI_NEON)
 #define STBI_NEON
 #endif
+#endif
 
 #ifdef STBI_NEON
 #include <arm_neon.h>
