This patch contains part of the changes necessary to 
build Python trunk for Windows CE 4.x using the 
freely downloadable Microsoft eMbedded Visual C++ 
4.0. I will submit more patches later.

The changes are:

- Replace use of intptr_t with Py_intptr_t 
(Py_intptr_t already exists)

- Created a macro to support 64-bit integer literals 
using the I64 suffix

- Guard #include <errno.h> with #ifndef 
DONT_HAVE_ERRNO_H (this macro was already used in a 
few places)

- Guard #include <fcntl.h> with #ifdef HAVE_FCNTL_H 
(this macro was already in pyconfig.h)

- Various small changes to PC/pyconfig.h, mostly to 
cater for header files that are not available for 
Windows CE

I have tested that this doesn't break anything by 
building the patched Python on Linux and running the 
test suite.

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Thanks for the patch, committed as r46064.

Notice that your changes to the dsw/dsp files are not
included, as these files are marked as binary.