Bugzilla Bug 189393

dev-python/PyQt4 requires x11-libs/qt:4 built with "zlib" USE flag.
The appropriate check should be added to pkg_setup().

I found somebody with this problem on Gentoo Fora. The following output is
copied from his post:

sipQtCorecmodule.cpp: In function 'PyObject* func_qUncompress(PyObject*,
PyObject*)': 
 sipQtCorecmodule.cpp:8312: error: 'qUncompress' was not declared in this scope 
 sipQtCorecmodule.cpp: In function 'PyObject* func_qCompress(PyObject*,
PyObject*)': 
 sipQtCorecmodule.cpp:8343: error: 'qCompress' was not declared in this scope 
 sip/QtCore/qobject.sip: In function 'void initQtCore()': 
 sip/QtCore/qobject.sip:2943: warning: dereferencing type-punned pointer will
break strict-aliasing rules 
 make[1]: *** [sipQtCorecmodule.o] Błąd 1 
 make[1]: *** Oczekiwanie na niezakończone zadania.... 
 make[1]: Opuszczenie katalogu
`/var/tmp/portage/dev-python/PyQt4-4.3/work/PyQt-x11-gpl-4.3/QtCore' 
 make: *** [all] Błąd 2

*** This bug has been marked as a duplicate of bug 188389 ***