Thank you for the excellent distutils tool!

Two problems:

First, this error message is emitted on win32, but it
appears to be incorrect, inasmuch as the Microsoft
compiler is not actually required:

"""
error: Python was built with version 7.1 of Visual
Studio, and extensions need to be built with the same
version of the compiler, but it isn't installed.
Error: Subprocess exited with result 1 for project core
"""

Second, the usage of distutils is somewhat confusing,
as the following line emits that error message:

./setup.py build -c mingw32; ./setup.py install

but the following line, which I intuitively believed to
be equivalent at first, works to compile and install
the package:

./setup.py build -c mingw32 install