Fix by renaming the variable.
In a different module, Neal fixed it by renaming _self to self. There's
already a variable named 'self' here, so I used selfptr.
(I'm committing this on a Mac without Tk, but it's a simple search-and-replace.
<crosses fingers>, so I'll watch the buildbots and see what happens.)
In C++, it's an error to pass a string literal to a char* function
without a const_cast(). Rather than require every C++ extension
module to put a cast around string literals, fix the API to state the
const-ness.
I focused on parts of the API where people usually pass literals:
PyArg_ParseTuple() and friends, Py_BuildValue(), PyMethodDef, the type
slots, etc. Predictably, there were a large set of functions that
needed to be fixed as a result of these changes. The most pervasive
change was to make the keyword args list passed to
PyArg_ParseTupleAndKewords() to be a const char *kwlist[].
One cast was required as a result of the changes: A type object
mallocs the memory for its tp_doc slot and later frees it.
PyTypeObject says that tp_doc is const char *; but if the type was
created by type_new(), we know it is safe to cast to char *.
regrtest.py: skip rgbimg and imageop as they are not built on 64-bit systems.
_tkinter.c: replace %.8x with %p for printing pointers.
setup.py: add lib64 into the library directories.
