Fix compile error

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25426 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/include/wx/wxPython/wxPython_int.h

@@ -317,6 +317,7 @@ class wxPyCallbackHelper;
 struct swig_type_info;
 struct swig_const_info;
 
+typedef double (*py_objasdbl_conv)(PyObject *obj);
 
 // Make SunCC happy and make typedef's for these that are extern "C"
 typedef swig_type_info* (*p_SWIG_Python_TypeRegister_t)(swig_type_info *);