after reading some topics from around 2009, I'm still struggling to get silverstripe installed using symbolic links to allow multiple sites to use the same codebase. The base site is working, but any modules I add on a per site basis are ignored by dev/build. I think this has to do with the fact that the BASE_PATH generated by framework/core/Core.php equals the path to my framework/cms location, not the path where the site-specific files are located and from where the symbolic links call to framework and cms folders.
Is there any clarity on this subject by now, or is it unfortunately still not possible to have this kind of set up? I manage my own server, so any advanced settings are possible to execute (Ubuntu server edition).