[Cython] Patch distutils to prevent overwriting of build-lib

This bug in distutils prevented building the MSI installer on Windows.

interfaces/cython/setup.py.in

@@ -2,6 +2,20 @@ import os
 from distutils.core import setup
 from Cython.Build import cythonize
 
+from distutils.command.build import build
+
+def get_build_lib(self):
+    return self._build_lib
+
+def set_build_lib(self, val):
+    if val is None or self._build_lib is None:
+        self._build_lib = val
+
+# Monkey patch to prevent bdist_msi from incorrectly overwriting the value of
+# build-lib specified on the command line.
+# See http://bugs.python.org/issue1109963
+build.build_lib = property(get_build_lib, set_build_lib)
+
 exts = cythonize("cantera/_cantera.pyx")
 
 exts[0].include_dirs += @py_include_dirs@