[PyQt] segfaults on linux and mac with sip 4.7.6

[Erick Tryzelaar]

I've had a couple different module segfault with a stack trace similar to this:

0   sip.so                        	0x04434fd8 createType + 249
1   sip.so                        	0x04430973 sip_api_export_module + 865
2   _qt.so                        	0x01704f0e sip_init_QtWebKit() + 190
3   _qt.so                        	0x017b3dab sip_init + 39
4   org.python.python             	0x00174dd6 PyObject_CallMethod + 182
5   QtWebKit.so                   	0x0446cfae initQtWebKit + 72
6   org.python.python             	0x0020bc97 _PyImport_LoadDynamicModule + 167
7   org.python.python             	0x00209b03 load_module + 227
8   org.python.python             	0x0020a35d import_submodule + 301
9   org.python.python             	0x0020a59a load_next + 170
10  org.python.python             	0x0020aad3 PyImport_ImportModuleEx + 227
11  org.python.python             	0x001dbf49 builtin___import__ + 121
12  org.python.python             	0x00174bd6 PyObject_CallFunction + 134
13  org.python.python             	0x0020af3f PyImport_Import + 191
14  org.python.python             	0x0020b117 PyImport_ImportModule + 39
15  Qt.so                         	0x010e6dd0 sip_import_component_module + 22
16  Qt.so                         	0x010e6ed2 initQt + 198
17  org.python.python             	0x0020bc97 _PyImport_LoadDynamicModule + 167
18  org.python.python             	0x00209b03 load_module + 227
19  org.python.python             	0x0020a35d import_submodule + 301
20  org.python.python             	0x0020a59a load_next + 170
21  org.python.python             	0x0020aad3 PyImport_ImportModuleEx + 227
22  org.python.python             	0x001dbf49 builtin___import__ + 121
23  org.python.python             	0x001706a2 PyObject_Call + 50
24  org.python.python             	0x001e4806
PyEval_CallObjectWithKeywords + 118
25  org.python.python             	0x001e6d91 PyEval_EvalFrame + 5809
26  org.python.python             	0x001ea4dd PyEval_EvalFrame + 19965
27  org.python.python             	0x001ea4dd PyEval_EvalFrame + 19965
28  org.python.python             	0x001ea4dd PyEval_EvalFrame + 19965
29  org.python.python             	0x001ebc5f PyEval_EvalCodeEx + 1631
30  org.python.python             	0x001ebf27 PyEval_EvalCode + 87
31  org.python.python             	0x00213e47 PyRun_FileExFlags + 231
32  org.python.python             	0x00214143 PyRun_SimpleFileExFlags + 659
33  org.python.python             	0x0021ea7a Py_Main + 3130
34  org.python.python             	0x000018db 0x1000 + 2267
35  org.python.python             	0x00001809 0x1000 + 2057


This particular trace is coming from compiling pyqwt, but we also get
the same error trying to import PyQt4.QtHelp and some other modules.
Has anyone else run into this?