Enable building of Carbon toolbox modules with unix-Python.
diff --git a/Mac/Modules/res/resscan.py b/Mac/Modules/res/resscan.py
index 8c51528..cf4bcb1 100644
--- a/Mac/Modules/res/resscan.py
+++ b/Mac/Modules/res/resscan.py
@@ -7,9 +7,8 @@
 import string
 import MacOS
 
-BGENDIR=os.path.join(sys.prefix, ':Tools:bgen:bgen')
+from bgenlocations import TOOLBOXDIR, BGENDIR
 sys.path.append(BGENDIR)
-from bgenlocations import TOOLBOXDIR
 
 from scantools import Scanner