Index: Lib/test/test_compileall.py
===================================================================
--- Lib/test/test_compileall.py	(revision 87048)
+++ Lib/test/test_compileall.py	(working copy)
@@ -247,6 +247,17 @@
         sourcefile = os.path.join(self.pkgdir, '__init__.py')
         self.assertTrue(os.path.exists(imp.cache_from_source(sourcefile)))
 
+    def test_multiple_dirs(self):
+        pkgdir2 = os.path.join(self.directory, 'foo2')
+        os.mkdir(pkgdir2)
+        open(os.path.join(pkgdir2, '__init__.py'), 'w').close()
+        open(os.path.join(pkgdir2, 'bar2.py'), 'w').close()
+        retcode = subprocess.call(
+            (sys.executable, '-m', 'compileall', self.pkgdir, pkgdir2))
+        self.assertEqual(retcode, 0)
+        self.assertTrue(os.path.exists(os.path.join(self.pkgdir, '__pycache__')))
+        self.assertTrue(os.path.exists(os.path.join(pkgdir2, '__pycache__')))
+        
 
 def test_main():
     support.run_unittest(