Building PyQT for Maya 2013 (Windows) results in LINK Errors

[Anonymous]

I followed the instructions found here:
http://images.autodesk.com/adsk/files/pyqtmaya2013.pdf

however, upon the nmake step within the C:\PyQt-win-glp-4.9.4 dir I receive this link error:

Generating Code...
        link /NOLOGO /DLL /MANIFEST /MANIFESTFILE:QtCore.pyd.manifest /SUBSYSTEM:WINDOWS "/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'" /INCREMENTAL:NO /DEBUG /OUT:QtCore.pyd @C:\Users\matthew\AppData\Local\Temp\nmF93F.tmp
   Creating library QtCore.lib and object QtCore.exp
sipQtCoreQByteArray.obj : error LNK2001: unresolved external symbol __imp__PyByteArray_empty_string
QtCore.pyd : fatal error LNK1120: 1 unresolved externals
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\amd64\link.EXE"' : return code '0x460'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\amd64\nmake.exe"' : return code '0x2'
Stop.