Rename _Py_identifier to _Py_IDENTIFIER.
diff --git a/Modules/zipimport.c b/Modules/zipimport.c
index 87dc0db..8e16750 100644
--- a/Modules/zipimport.c
+++ b/Modules/zipimport.c
@@ -908,7 +908,7 @@
     static int importing_zlib = 0;
     PyObject *zlib;
     PyObject *decompress;
-    _Py_identifier(decompress);
+    _Py_IDENTIFIER(decompress);
 
     if (importing_zlib != 0)
         /* Someone has a zlib.py[co] in their Zip file;