[PyQt] Patch for SIP to add -qtlibinfix support

Attached is a patch to add support for -qtlibinfix to SIP's siputils.py. A while ago someone else on the list requested this feature: What it does is check for the value QT_LIBINFIX in mkspecs/q

[PyQt] QtDeclarative support with Python 2.5

I'm trying to build the latest snapshot of PyQt. Our environment includes Python 2.5, and it looks like QtDeclarative uses Py_TPFLAGS_STRING_SUBCLASS, which is only in 2.6+: qpydeclarativelistproperty.cpp:67: error: 'Py_TPFLAGS_STRING_SUBCLASS' was not declared in this scope Will QtDeclarat