diff -r 000000000000 -r ae805ac0140d python-2.5.2/win32/Lib/test/test_fcntl.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python-2.5.2/win32/Lib/test/test_fcntl.py	Fri Apr 03 17:19:34 2009 +0100
@@ -0,0 +1,69 @@
+#! /usr/bin/env python
+"""Test program for the fcntl C module.
+   OS/2+EMX doesn't support the file locking operations.
+   Roger E. Masse
+"""
+import struct
+import fcntl
+import os, sys
+from test.test_support import verbose, TESTFN
+
+filename = TESTFN
+
+try:
+    os.O_LARGEFILE
+except AttributeError:
+    start_len = "ll"
+else:
+    start_len = "qq"
+
+if sys.platform.startswith('atheos'):
+    start_len = "qq"
+
+if sys.platform in ('netbsd1', 'netbsd2', 'netbsd3',
+                    'Darwin1.2', 'darwin',
+                    'freebsd2', 'freebsd3', 'freebsd4', 'freebsd5',
+                    'freebsd6', 'freebsd7',
+                    'bsdos2', 'bsdos3', 'bsdos4',
+                    'openbsd', 'openbsd2', 'openbsd3', 'openbsd4'):
+    if struct.calcsize('l') == 8:
+        off_t = 'l'
+        pid_t = 'i'
+    else:
+        off_t = 'lxxxx'
+        pid_t = 'l'
+    lockdata = struct.pack(off_t+off_t+pid_t+'hh', 0, 0, 0, fcntl.F_WRLCK, 0)
+elif sys.platform in ['aix3', 'aix4', 'hp-uxB', 'unixware7']:
+    lockdata = struct.pack('hhlllii', fcntl.F_WRLCK, 0, 0, 0, 0, 0, 0)
+elif sys.platform in ['os2emx']:
+    lockdata = None
+else:
+    lockdata = struct.pack('hh'+start_len+'hh', fcntl.F_WRLCK, 0, 0, 0, 0, 0)
+if lockdata:
+    if verbose:
+        print 'struct.pack: ', repr(lockdata)
+
+# the example from the library docs
+f = open(filename, 'w')
+rv = fcntl.fcntl(f.fileno(), fcntl.F_SETFL, os.O_NONBLOCK)
+if verbose:
+    print 'Status from fcntl with O_NONBLOCK: ', rv
+
+if sys.platform not in ['os2emx']:
+    rv = fcntl.fcntl(f.fileno(), fcntl.F_SETLKW, lockdata)
+    if verbose:
+        print 'String from fcntl with F_SETLKW: ', repr(rv)
+
+f.close()
+os.unlink(filename)
+
+
+# Again, but pass the file rather than numeric descriptor:
+f = open(filename, 'w')
+rv = fcntl.fcntl(f, fcntl.F_SETFL, os.O_NONBLOCK)
+
+if sys.platform not in ['os2emx']:
+    rv = fcntl.fcntl(f, fcntl.F_SETLKW, lockdata)
+
+f.close()
+os.unlink(filename)