Only test NODEV on Linux.

Author: serhiy-storchaka

Lib/test/test_posix.py

@@ -724,8 +724,8 @@ def test_makedev(self):
             self.assertRaises((ValueError, OverflowError), posix.makedev, x, minor)
             self.assertRaises((ValueError, OverflowError), posix.makedev, major, x)
 
-        if hasattr(posix, '_NODEV'):
-            NODEV = posix._NODEV
+        if sys.platform == 'linux':
+            NODEV = -1
             self.assertEqual(posix.major(NODEV), NODEV)
             self.assertEqual(posix.minor(NODEV), NODEV)
 

Modules/posixmodule.c

@@ -17034,10 +17034,6 @@ all_ins(PyObject *m)
     if (PyModule_AddIntConstant(m, "_LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR", LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR)) return -1;
 #endif
 
-#ifdef NODEV
-    if (PyModule_AddIntConstant(m, "_NODEV", NODEV)) return -1;
-#endif
-
     return 0;
 }