--- a/setup/extensions.py	2010-04-09 09:31:09.000000000 +0200
+++ b/setup/extensions.py	2010-04-18 16:09:28.000000000 +0200
@@ -377,6 +377,7 @@
                     makefile=mf, universal=OSX_SDK, qt=1)
             makefile.extra_lflags = qt_objects
             makefile.extra_include_dirs = ext.inc_dirs
+            makefile.LIBS.append('-lpython'+sysconfig.get_python_version())
             makefile.generate()
 
             subprocess.check_call([make, '-f', mf], cwd=src_dir)