Make this module Python 2.3 compatible, and add a setup script that allows
it to be built for that python.
diff --git a/Mac/Modules/osa/setup.py b/Mac/Modules/osa/setup.py
new file mode 100644
index 0000000..82e7742
--- /dev/null
+++ b/Mac/Modules/osa/setup.py
@@ -0,0 +1,13 @@
+# This is a temporary setup script to allow distribution of
+# MacPython 2.4 modules for MacPython 2.3.
+
+from distutils.core import Extension, setup
+
+setup(name="OSA", version="0.1",
+	ext_modules=[
+		Extension('_OSA', ['_OSAmodule.c'],
+		extra_link_args=['-framework', 'Carbon'])
+	],
+	py_modules=['OSA.OSA', 'OSA.OSAconst'],
+	package_dir={'OSA':'../../../Lib/plat-mac/Carbon'}
+	)