[matplotlib-devel] Problem with proposed 1.0.1 release

I'm running into an error building the Mac binary:

d-69-91-185-129:/Archives/PythonPackages/matplotlib-1.0.1 rowen$ 
bdist_mpkg
basedirlist is: ['/usr/local']
=========================================================================
===
BUILDING MATPLOTLIB
            matplotlib: 1.0.1
                python: 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 
14:13:39)
                        [GCC 4.0.1 (Apple Inc. build 5493)]
              platform: darwin

REQUIRED DEPENDENCIES
                 numpy: 1.6.1
             freetype2: found, but unknown version (no pkg-config)

OPTIONAL BACKEND DEPENDENCIES
                libpng: found, but unknown version (no pkg-config)
Traceback (most recent call last):
  File 
"/Library/Frameworks/Python.framework/Versions/2.7/bin/bdist_mpkg", line 
8, in <module>
    load_entry_point('bdist-mpkg==0.4.4', 'console_scripts', 
'bdist_mpkg')()
  File 
"build/bdist.macosx-10.3-fat/egg/bdist_mpkg/script_bdist_mpkg.py", line 
27, in main
  File "setup.py", line 162, in <module>
    if check_for_tk() or (options['build_tkagg'] is True):
  File "/Archives/PythonPackages/matplotlib-1.0.1/setupext.py", line 
832, in check_for_tk
    (Tkinter.__version__.split()[-2], Tkinter.TkVersion, 
Tkinter.TclVersion))
IndexError: list index out of range

I have ActiveState Tk installed. Tkinter reports the following values:
Tkinter.__version__ = "$Revision$"
Tkinter.TkVersion = "8.4"
Tkinter.TclVersion = "8.4"

I assume I can get past this by hacking up setupext.py; I'm willing to 
do that, but I'm wondering if it makes more sense to fix the bug. How 
many other users are going to be bit by this?

1.0.1rc1 built with no problems, but I see that setupext.py had some 
revisions since then.

-- Russell

P.S. I have no idea why freetype2 and libpng install without pkg-config; 
I install them in in /usr/local in the usual way. However, those 
warnings have been present for a long time and it never seems to cause 
any trouble.