http://bugs.winehq.org/show_bug.cgi?id=26031
--- Comment #61 from Hans Leidekker hans@meelstraat.net 2013-08-27 04:04:00 CDT --- (In reply to comment #60)
We can argue forever about the feasibility and validity of using SO_REUSEADDR by default, the fact is here's a Windows application which works under Windows and breaks under Linux.
Besides last time I checked, Wine is meant to emulate Windows behaviour as much as possible - and since the Linux kernel allows sockets reuse, Wine must allow it too for Windows applications.
Sure, but we can't fix one set of applications and break another set at the same time.