c_ssize_t undefined

[tripleee]

I am unable to import the library on Python 2.6.6.

(.env)[0] 09:31:14 tripleee@sow:/tmp$ git clone https://github.com/dsoprea/PyEasyArchive.git
Cloning into PyEasyArchive...
remote: Counting objects: 367, done.
remote: Total 367 (delta 0), reused 0 (delta 0), pack-reused 367
Receiving objects: 100% (367/367), 23.01 MiB | 5.14 MiB/s, done.
Resolving deltas: 100% (198/198), done.

(.env)[0] 09:31:28 tripleee@sow:/tmp$ cd PyEasyArchive/

(.env)[0] 09:31:44 tripleee@sow:/tmp/PyEasyArchive$ nosetests
EE
======================================================================
ERROR: Failure: NameError (name 'c_ssize_t' is not defined)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/var/tmp/.env/lib/python2.6/site-packages/nose/loader.py", line 414, in loadTestsFromName
    addr.filename, addr.module)
  File "/var/tmp/.env/lib/python2.6/site-packages/nose/importer.py", line 47, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "/var/tmp/.env/lib/python2.6/site-packages/nose/importer.py", line 94, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/tmp/PyEasyArchive/tests/test_create.py", line 5, in <module>
    import libarchive.public
  File "/tmp/PyEasyArchive/libarchive/public.py", line 1, in <module>
    from libarchive.adapters.archive_read import \
  File "/tmp/PyEasyArchive/libarchive/adapters/archive_read.py", line 7, in <module>
    import libarchive.calls.archive_read
  File "/tmp/PyEasyArchive/libarchive/calls/archive_read.py", line 4, in <module>
    from libarchive.types.archive import *
  File "/tmp/PyEasyArchive/libarchive/types/archive.py", line 3, in <module>
    ARCHIVE_WRITE_CALLBACK = CFUNCTYPE(c_ssize_t, c_void_p, c_void_p, POINTER(c_void_p), c_size_t)
NameError: name 'c_ssize_t' is not defined
-------------------- >> begin captured logging << --------------------
libarchive.library: DEBUG: Using library: [libarchive.so]
--------------------- >> end captured logging << ---------------------

======================================================================
ERROR: Failure: NameError (name 'c_ssize_t' is not defined)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/var/tmp/.env/lib/python2.6/site-packages/nose/loader.py", line 414, in loadTestsFromName
    addr.filename, addr.module)
  File "/var/tmp/.env/lib/python2.6/site-packages/nose/importer.py", line 47, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "/var/tmp/.env/lib/python2.6/site-packages/nose/importer.py", line 94, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/tmp/PyEasyArchive/tests/test_read.py", line 5, in <module>
    import libarchive.public
  File "/tmp/PyEasyArchive/libarchive/public.py", line 1, in <module>
    from libarchive.adapters.archive_read import \
  File "/tmp/PyEasyArchive/libarchive/adapters/archive_read.py", line 7, in <module>
    import libarchive.calls.archive_read
  File "/tmp/PyEasyArchive/libarchive/calls/archive_read.py", line 4, in <module>
    from libarchive.types.archive import *
  File "/tmp/PyEasyArchive/libarchive/types/archive.py", line 3, in <module>
    ARCHIVE_WRITE_CALLBACK = CFUNCTYPE(c_ssize_t, c_void_p, c_void_p, POINTER(c_void_p), c_size_t)
NameError: name 'c_ssize_t' is not defined

----------------------------------------------------------------------
Ran 2 tests in 0.046s

FAILED (errors=2)

Incidentally, e.g. http://nullege.com/codes/search/ctypes.c_ssize_t seems to suggest using the following idiom;

try:
    from ctypes import c_ssize_t
except ImportError:
    from ctypes import c_longlong as c_ssize_t

With that, I am able to get slightly further in loading the library, but not enough to actually use it.