diff --git a/include/SDL3/SDL_stdinc.h b/include/SDL3/SDL_stdinc.h
index 7fe0bb8104..6d8713876e 100644
--- a/include/SDL3/SDL_stdinc.h
+++ b/include/SDL3/SDL_stdinc.h
@@ -139,8 +139,19 @@ void *alloca(size_t);
 /**
  * Append the 64 bit integer suffix to an integer literal.
  */
+#if defined(INT64_C)
 #define SDL_SINT64_C(c)  INT64_C(c)
 #define SDL_UINT64_C(c)  UINT64_C(c)
+#elif defined(_MSC_VER)
+#define SDL_INT64_C(c)   c ## i64
+#define SDL_UINT64_C(c)  c ## ui64
+#elif defined(__LP64__) || defined(_LP64)
+#define SDL_INT64_C(c)   c ## L
+#define SDL_UINT64_C(c)  c ## UL
+#else
+#define SDL_INT64_C(c)   c ## LL
+#define SDL_UINT64_C(c)  c ## ULL
+#endif
 
 /**
  *  \name Basic data types