Check Py_LIMITED_API version

Author: vstinner

Include/pymem.h

@@ -91,6 +91,7 @@ PyAPI_FUNC(void) PyMem_Free(void *ptr);
 #define PyMem_DEL(p)              PyMem_Free((p))
 
 
+#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x030d0000
 // Memory allocator which doesn't require the GIL to be held.
 // Usually, it's just a thin wrapper to functions of the standard C library:
 // malloc(), calloc(), realloc() and free(). The difference is that
@@ -99,6 +100,7 @@ PyAPI_FUNC(void *) PyMem_RawMalloc(size_t size);
 PyAPI_FUNC(void *) PyMem_RawCalloc(size_t nelem, size_t elsize);
 PyAPI_FUNC(void *) PyMem_RawRealloc(void *ptr, size_t new_size);
 PyAPI_FUNC(void) PyMem_RawFree(void *ptr);
+#endif
 
 #ifndef Py_LIMITED_API
 #  define Py_CPYTHON_PYMEM_H