Source changes for compilation

These are the commits from
https://github.com/ahgamut/cpython/tree/cosmo_py36 squashed for
simplicity.

Also included is the pyconfig.h used for compilation. The pyconfig.h has
to be changed manually in case Cosmopolitan gets new features.

third_party/python/Lib/test/test_site.py

@@ -384,6 +384,9 @@ class ImportSideEffectTests(unittest.TestCase):
         # __file__ if abs_paths() does not get run.  sys and builtins (the
         # only other modules imported before site.py runs) do not have
         # __file__ or __cached__ because they are built-in.
+
+        # abspath stuff clashes with APE ZIP store imports
+        return
         try:
             parent = os.path.relpath(os.path.dirname(os.__file__))
             cwd = os.getcwd()
@@ -512,10 +515,11 @@ class StartupImportTests(unittest.TestCase):
 
         self.assertIn('site', modules)
 
+        return # interferes with ZIP store
         # http://bugs.python.org/issue19205
         re_mods = {'re', '_sre', 'sre_compile', 'sre_constants', 'sre_parse'}
         # _osx_support uses the re module in many placs
-        if sys.platform != 'darwin':
+        if False and sys.platform != 'darwin':
             self.assertFalse(modules.intersection(re_mods), stderr)
         # http://bugs.python.org/issue9548
         self.assertNotIn('locale', modules, stderr)