Unable to specify directory recursion in setup.cfg extra_files

gistfile1.txt

[files]
modules = nemo

packages = virtualenvwrapper

scripts = nemo

extra_files =
    hooks.py
    winfiles/**

vinay@eta-natty:~/projects/nemo$ tar tvf dist/nemo-0.1.tar.gz 
drwxr-xr-x vinay/vinay       0 2011-06-22 22:14 nemo-0.1/
drwxr-xr-x vinay/vinay       0 2011-06-22 22:14 nemo-0.1/virtualenvwrapper/
-rw-r--r-- vinay/vinay    4813 2011-06-22 22:14 nemo-0.1/virtualenvwrapper/hook_loader.py
-rw-r--r-- vinay/vinay    8688 2011-06-22 22:14 nemo-0.1/virtualenvwrapper/user_scripts.py
-rw-r--r-- vinay/vinay      89 2011-06-22 22:14 nemo-0.1/virtualenvwrapper/__init__.py
drwxr-xr-x vinay/vinay       0 2011-06-22 22:14 nemo-0.1/winfiles/
-rw-r--r-- vinay/vinay      64 2011-06-22 22:14 nemo-0.1/winfiles/Reload.ps1
-rw-r--r-- vinay/vinay     338 2011-06-22 22:14 nemo-0.1/winfiles/Setup.ps1
-rw-r--r-- vinay/vinay     627 2011-06-22 22:14 nemo-0.1/winfiles/RELEASE_NOTES.TXT
-rw-r--r-- vinay/vinay      47 2011-06-22 22:14 nemo-0.1/nemo
-rw-r--r-- vinay/vinay   20022 2011-06-22 22:14 nemo-0.1/virtualenvwrapper.sh
-rw-r--r-- vinay/vinay     918 2011-06-22 22:14 nemo-0.1/setup.cfg
-rw-r--r-- vinay/vinay    2047 2011-06-22 22:14 nemo-0.1/hooks.py
-rw-r--r-- vinay/vinay     704 2011-06-22 22:14 nemo-0.1/PKG-INFO
-rw-r--r-- vinay/vinay   14772 2011-06-22 22:14 nemo-0.1/nemo.py
vinay@eta-natty:~/projects/nemo$ tree winfiles
winfiles
├── RELEASE_NOTES.TXT
├── Reload.ps1
├── Setup.ps1
└── virtualenvwrapper
    ├── en-US
    │   └── about_virtualenvwrapperForWindows.help.txt
    ├── support.psm1
    ├── virtualenvwrapper.psd1
    ├── virtualenvwrapper.psm1
    └── win.psm1

2 directories, 8 files

vinay@eta-natty:~/projects/nemo$ python3.3
Python 3.3a0 (default:cbbf958ba4f5+d1d5a7392e39+, Jun 22 2011, 12:27:32) 
[GCC 4.5.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import packaging.dist
>>> dist = packaging.dist.Distribution()
>>> import packaging.config
>>> conf = packaging.config.Config(dist)
>>> conf.parse_config_files(['setup.cfg'])
>>> dist.extra_files
['hooks.py', 'winfiles/**']

So the faulty processing is done at some later time, most likely in the Manifest class.