HP-UX is another one of those platforms using an alternative lock
structure (same as AIX).
diff --git a/Lib/test/test_fcntl.py b/Lib/test/test_fcntl.py
index 3c1be88..e1ed88b 100755
--- a/Lib/test/test_fcntl.py
+++ b/Lib/test/test_fcntl.py
@@ -21,7 +21,7 @@
'bsdos2', 'bsdos3', 'bsdos4',
'openbsd', 'openbsd2'):
lockdata = struct.pack('lxxxxlxxxxlhh', 0, 0, 0, FCNTL.F_WRLCK, 0)
-elif sys.platform in ['aix3', 'aix4']:
+elif sys.platform in ['aix3', 'aix4', 'hp-uxB']:
lockdata = struct.pack('hhlllii', FCNTL.F_WRLCK, 0, 0, 0, 0, 0, 0)
else:
lockdata = struct.pack('hhllhh', FCNTL.F_WRLCK, 0, 0, 0, 0, 0)