ctypes.macholib is needed.
diff --git a/Makefile.pre.in b/Makefile.pre.in
index b805fef..c918e66 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -684,7 +684,7 @@
email email/mime email/test email/test/data \
sqlite3 sqlite3/test \
logging bsddb bsddb/test csv \
- ctypes ctypes/test idlelib idlelib/Icons \
+ ctypes ctypes/test ctypes/macholib idlelib idlelib/Icons \
distutils distutils/command distutils/tests $(XMLLIBSUBDIRS) \
curses $(MACHDEPS)
libinstall: $(BUILDPYTHON) $(srcdir)/Lib/$(PLATDIR)