replace Py_(u)intptr_t with the c99 standard types
diff --git a/Include/pyatomic.h b/Include/pyatomic.h
index 89028ef..893d30d 100644
--- a/Include/pyatomic.h
+++ b/Include/pyatomic.h
@@ -61,7 +61,7 @@
 } _Py_memory_order;
 
 typedef struct _Py_atomic_address {
-    Py_uintptr_t _value;
+    uintptr_t _value;
 } _Py_atomic_address;
 
 typedef struct _Py_atomic_int {
@@ -98,7 +98,7 @@
 } _Py_memory_order;
 
 typedef struct _Py_atomic_address {
-    Py_uintptr_t _value;
+    uintptr_t _value;
 } _Py_atomic_address;
 
 typedef struct _Py_atomic_int {