diff --git a/Lib/test/test_site.py b/Lib/test/test_site.py
index 56596c8..4af83b3 100644
--- a/Lib/test/test_site.py
+++ b/Lib/test/test_site.py
@@ -11,6 +11,9 @@
 import sys
 import encodings
 import subprocess
+import sysconfig
+from copy import copy
+
 # Need to make sure to not import 'site' if someone specified ``-S`` at the
 # command-line.  Detect this by just making sure 'site' has not been imported
 # already.
@@ -38,6 +41,7 @@
         self.old_base = site.USER_BASE
         self.old_site = site.USER_SITE
         self.old_prefixes = site.PREFIXES
+        self.old_vars = copy(sysconfig._CONFIG_VARS)
 
     def tearDown(self):
         """Restore sys.path"""
@@ -45,6 +49,7 @@
         site.USER_BASE = self.old_base
         site.USER_SITE = self.old_site
         site.PREFIXES = self.old_prefixes
+        sysconfig._CONFIG_VARS = self.old_vars
 
     def test_makepath(self):
         # Test makepath() have an absolute path for its first return value
@@ -138,6 +143,9 @@
 
         # let's set PYTHONUSERBASE and see if it uses it
         site.USER_BASE = None
+        import sysconfig
+        sysconfig._CONFIG_VARS = None
+
         with EnvironmentVarGuard() as environ:
             environ['PYTHONUSERBASE'] = 'xoxo'
             self.assertTrue(site.getuserbase().startswith('xoxo'),
diff --git a/Lib/test/test_sysconfig.py b/Lib/test/test_sysconfig.py
new file mode 100644
index 0000000..c2dd5db
--- /dev/null
+++ b/Lib/test/test_sysconfig.py
@@ -0,0 +1,214 @@
+"""Tests for 'site'.
+
+Tests assume the initial paths in sys.path once the interpreter has begun
+executing have not been removed.
+
+"""
+import unittest
+import sys
+import test
+import os
+from copy import copy, deepcopy
+
+from test.test_support import run_unittest, TESTFN
+
+import sysconfig
+from sysconfig import (get_paths, get_platform, get_config_vars,
+                       get_path, get_path_names, _INSTALL_SCHEMES,
+                       _get_default_scheme, _expand_vars)
+
+class TestSysConfig(unittest.TestCase):
+
+    def setUp(self):
+        """Make a copy of sys.path"""
+        super(TestSysConfig, self).setUp()
+        self.sys_path = sys.path[:]
+        self.makefile = None
+        # patching os.uname
+        if hasattr(os, 'uname'):
+            self.uname = os.uname
+            self._uname = os.uname()
+        else:
+            self.uname = None
+            self._uname = None
+        os.uname = self._get_uname
+        # saving the environment
+        self.name = os.name
+        self.platform = sys.platform
+        self.version = sys.version
+        self.sep = os.sep
+        self.join = os.path.join
+        self.isabs = os.path.isabs
+        self.splitdrive = os.path.splitdrive
+        self._config_vars = copy(sysconfig._CONFIG_VARS)
+        self.old_environ = deepcopy(os.environ)
+
+    def tearDown(self):
+        """Restore sys.path"""
+        sys.path[:] = self.sys_path
+        if self.makefile is not None:
+            os.unlink(self.makefile)
+        self._cleanup_testfn()
+        if self.uname is not None:
+            os.uname = self.uname
+        else:
+            del os.uname
+        os.name = self.name
+        sys.platform = self.platform
+        sys.version = self.version
+        os.sep = self.sep
+        os.path.join = self.join
+        os.path.isabs = self.isabs
+        os.path.splitdrive = self.splitdrive
+        sysconfig._CONFIG_VARS = copy(self._config_vars)
+        for key, value in self.old_environ.items():
+            if os.environ.get(key) != value:
+                os.environ[key] = value
+
+        for key in os.environ.keys():
+            if key not in self.old_environ:
+                del os.environ[key]
+
+        super(TestSysConfig, self).tearDown()
+
+    def _set_uname(self, uname):
+        self._uname = uname
+
+    def _get_uname(self):
+        return self._uname
+
+    def _cleanup_testfn(self):
+        path = test.test_support.TESTFN
+        if os.path.isfile(path):
+            os.remove(path)
+        elif os.path.isdir(path):
+            shutil.rmtree(path)
+
+    def test_get_path_names(self):
+        self.assertEquals(get_path_names(), sysconfig._SCHEME_KEYS)
+
+    def test_get_paths(self):
+        scheme = get_paths()
+        default_scheme = _get_default_scheme()
+        wanted = _expand_vars(default_scheme, None)
+        wanted = wanted.items()
+        wanted.sort()
+        scheme = scheme.items()
+        scheme.sort()
+        self.assertEquals(scheme, wanted)
+
+    def test_get_path(self):
+        # xxx make real tests here
+        for scheme in _INSTALL_SCHEMES:
+            for name in _INSTALL_SCHEMES[scheme]:
+                res = get_path(name, scheme)
+
+    def test_get_config_vars(self):
+        cvars = get_config_vars()
+        self.assertTrue(isinstance(cvars, dict))
+        self.assertTrue(cvars)
+
+    def test_get_platform(self):
+        # windows XP, 32bits
+        os.name = 'nt'
+        sys.version = ('2.4.4 (#71, Oct 18 2006, 08:34:43) '
+                       '[MSC v.1310 32 bit (Intel)]')
+        sys.platform = 'win32'
+        self.assertEquals(get_platform(), 'win32')
+
+        # windows XP, amd64
+        os.name = 'nt'
+        sys.version = ('2.4.4 (#71, Oct 18 2006, 08:34:43) '
+                       '[MSC v.1310 32 bit (Amd64)]')
+        sys.platform = 'win32'
+        self.assertEquals(get_platform(), 'win-amd64')
+
+        # windows XP, itanium
+        os.name = 'nt'
+        sys.version = ('2.4.4 (#71, Oct 18 2006, 08:34:43) '
+                       '[MSC v.1310 32 bit (Itanium)]')
+        sys.platform = 'win32'
+        self.assertEquals(get_platform(), 'win-ia64')
+
+        # macbook
+        os.name = 'posix'
+        sys.version = ('2.5 (r25:51918, Sep 19 2006, 08:49:13) '
+                       '\n[GCC 4.0.1 (Apple Computer, Inc. build 5341)]')
+        sys.platform = 'darwin'
+        self._set_uname(('Darwin', 'macziade', '8.11.1',
+                   ('Darwin Kernel Version 8.11.1: '
+                    'Wed Oct 10 18:23:28 PDT 2007; '
+                    'root:xnu-792.25.20~1/RELEASE_I386'), 'i386'))
+        get_config_vars()['MACOSX_DEPLOYMENT_TARGET'] = '10.3'
+        os.environ['MACOSX_DEPLOYMENT_TARGET'] = '10.3'
+
+        get_config_vars()['CFLAGS'] = ('-fno-strict-aliasing -DNDEBUG -g '
+                                       '-fwrapv -O3 -Wall -Wstrict-prototypes')
+
+        self.assertEquals(get_platform(), 'macosx-10.3-i386')
+
+        # macbook with fat binaries (fat, universal or fat64)
+        os.environ['MACOSX_DEPLOYMENT_TARGET'] = '10.4'
+        get_config_vars()['CFLAGS'] = ('-arch ppc -arch i386 -isysroot '
+                                       '/Developer/SDKs/MacOSX10.4u.sdk  '
+                                       '-fno-strict-aliasing -fno-common '
+                                       '-dynamic -DNDEBUG -g -O3')
+
+        self.assertEquals(get_platform(), 'macosx-10.4-fat')
+
+        get_config_vars()['CFLAGS'] = ('-arch x86_64 -arch i386 -isysroot '
+                                       '/Developer/SDKs/MacOSX10.4u.sdk  '
+                                       '-fno-strict-aliasing -fno-common '
+                                       '-dynamic -DNDEBUG -g -O3')
+
+        self.assertEquals(get_platform(), 'macosx-10.4-intel')
+
+        get_config_vars()['CFLAGS'] = ('-arch x86_64 -arch ppc -arch i386 -isysroot '
+                                       '/Developer/SDKs/MacOSX10.4u.sdk  '
+                                       '-fno-strict-aliasing -fno-common '
+                                       '-dynamic -DNDEBUG -g -O3')
+        self.assertEquals(get_platform(), 'macosx-10.4-fat3')
+
+        get_config_vars()['CFLAGS'] = ('-arch ppc64 -arch x86_64 -arch ppc -arch i386 -isysroot '
+                                       '/Developer/SDKs/MacOSX10.4u.sdk  '
+                                       '-fno-strict-aliasing -fno-common '
+                                       '-dynamic -DNDEBUG -g -O3')
+        self.assertEquals(get_platform(), 'macosx-10.4-universal')
+
+        get_config_vars()['CFLAGS'] = ('-arch x86_64 -arch ppc64 -isysroot '
+                                       '/Developer/SDKs/MacOSX10.4u.sdk  '
+                                       '-fno-strict-aliasing -fno-common '
+                                       '-dynamic -DNDEBUG -g -O3')
+
+        self.assertEquals(get_platform(), 'macosx-10.4-fat64')
+
+        for arch in ('ppc', 'i386', 'x86_64', 'ppc64'):
+            get_config_vars()['CFLAGS'] = ('-arch %s -isysroot '
+                                           '/Developer/SDKs/MacOSX10.4u.sdk  '
+                                           '-fno-strict-aliasing -fno-common '
+                                           '-dynamic -DNDEBUG -g -O3'%(arch,))
+
+            self.assertEquals(get_platform(), 'macosx-10.4-%s'%(arch,))
+
+        # linux debian sarge
+        os.name = 'posix'
+        sys.version = ('2.3.5 (#1, Jul  4 2007, 17:28:59) '
+                       '\n[GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)]')
+        sys.platform = 'linux2'
+        self._set_uname(('Linux', 'aglae', '2.6.21.1dedibox-r7',
+                    '#1 Mon Apr 30 17:25:38 CEST 2007', 'i686'))
+
+        self.assertEquals(get_platform(), 'linux-i686')
+
+        # XXX more platforms to tests here
+
+    def test_get_config_h_filename(self):
+        config_h = sysconfig.get_config_h_filename()
+        self.assertTrue(os.path.isfile(config_h), config_h)
+
+
+def test_main():
+    run_unittest(TestSysConfig)
+
+if __name__ == "__main__":
+    test_main()