[poky] Python missing _ctypes library

[Gary Thomas]

Building from master 37ac9a0823690bd3e031c04e2351a41af04e8aa1, any target will
have this problem.

Unable to use ctypes/_ctypes module:
   # python
   Python 2.6.6 (r266:84292, Mar 30 2011, 10:57:26) [GCC 4.5.2] on linux2
   Type "help", "copyright", "credits" or "license" for more information.
   >>> import ctypes
   Traceback (most recent call last):
       File "<stdin>", line 1, in <module>
   File "/usr/lib/python2.6/ctypes/__init__.py", line 10, in <module>
       from _ctypes import Union, Structure, Array
   ImportError: No module named _ctypes

I believe this is because of this error during the build:
   autoreconf: Entering directory `Modules/_ctypes/libffi'
   autoreconf: configure.ac: not using Gettext
   autoreconf: running: aclocal --force
   configure.ac:26: error: m4_copy: won't overwrite defined macro: _AC_ARG_VAR_PRECIOUS
   configure.ac:26: the top level
   autom4te: /home/local/p60_poky/tmp/sysroots/i686-linux/usr/bin/m4 failed with exit status: 1
   aclocal: /home/local/p60_poky/tmp/sysroots/i686-linux/usr/bin/autom4te failed with exit status: 1
   autoreconf: aclocal failed with exit status: 1
   NOTE: _ctypes failed to autoreconf

Perhaps related to bug #941?

Filed as bug #1003

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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