softwarehome is not present on _cfg on SlapOS setups.

This problem was triggered by allowing ZEO to import non-packaged products,
and trying to resolve a conflict on
Products.ERP5Type.Utils.ScalarMaxConflictResolver, which imports Globals.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@45757 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Globals.py

@@ -67,7 +67,11 @@ _cfg = _getConfiguration()
 DevelopmentMode = _cfg.debug_mode
 # backward compatibility
 INSTANCE_HOME = _cfg.instancehome
-SOFTWARE_HOME = _cfg.softwarehome
+try:
+  SOFTWARE_HOME = _cfg.softwarehome
+except AttributeError:
+  # Not present when imported from ZEO (for conflict resolution).
+  pass
 
 # don't tempt potential users by leaving these lying around
 del _cfg, _getConfiguration