[Bug 49131] wineboot fails to start

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49131

--- Comment #5 from Stefan Dösinger  ---
I don't think this particular bug happens on Linux. The problem is inside an
#ifdef __APPLE__ piece of code. There might be a similar problem in
wine-staging 5.8 though.

The problem is that send_server_task_port() passes server_dir to a macos
function, but this global variable is not set when WINESERVERSOCKET is defined
(i.e., a socket to talk to wineserver was provided by the parent process).