Replaced addpack by handcrafted code to find the bgen stuff.
diff --git a/Mac/Modules/menu/menuscan.py b/Mac/Modules/menu/menuscan.py
index cf00dcc..37ced2f 100644
--- a/Mac/Modules/menu/menuscan.py
+++ b/Mac/Modules/menu/menuscan.py
@@ -1,6 +1,8 @@
# Scan <Menus.h>, generating menugen.py.
-import addpack
-addpack.addpack(':Tools:bgen:bgen')
+import sys
+import os
+BGENDIR=os.path.join(sys.prefix, ':Tools:bgen:bgen')
+sys.path.append(BGENDIR)
from scantools import Scanner
from bgenlocations import TOOLBOXDIR