Bug 1335 - waf 1.6.10 upgrade breaks OS X build when Python enabled

src/wscript

@@ -276,6 +276,12 @@ def ns3_python_bindings(bld):
     pymod.env['DEFINES'] = defines
     pymod.includes = '# bindings'
     pymod.install_path = '${PYTHONARCHDIR}/ns'
+
+    # Workaround to a WAF bug, remove this when ns-3 upgrades to WAF > 1.6.10
+    # https://www.nsnam.org/bugzilla/show_bug.cgi?id=1335
+    # http://code.google.com/p/waf/issues/detail?id=1098
+    pymod.mac_bundle = True
+
     return pymod