Revert a single line of my large change earlier today; this broke the ability

    to build in a subdirectory.  The additional directory is unfortunately
    redundant when *not* building in a subdirectory, which is why I took
    it out.

setup.py

@@ -76,6 +76,7 @@ class PyBuildExt(build_ext):
             ext.sources = [ os.path.join(moddir, filename)
                             for filename in ext.sources ]
             ext.include_dirs.append( '.' ) # to get config.h
+            ext.include_dirs.append( os.path.join(srcdir, './Include') )
 
             # Try importing a module; if it's already been built statically,
             # don't build it here