fixed: configure python exe so fcd rebuilding works      : look for XX.Prepare.cmake files when building external projects
fixed: configure python exe so fcd rebuilding works
     : look for XX.Prepare.cmake files when building external projects

git-svn-id: 9c86407f91444b2cc93bb44d37d96a685973386f@2340 4683daeb-ad0f-0410-a623-93161e962ae5

jondo2010/OpenSG,jondo2010/OpenSG,jondo2010/OpenSG,jondo2010/OpenSG,jondo2010/OpenSG