[Bug 50154] Allow using SDL_GAMECONTROLLERCONFIG to configure SDL controller mappings

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50154

--- Comment #2 from [e-mail] ---
(In reply to Hans Leidekker from comment #1)
> Created attachment 68671 [details]
> patch
>
> Here's a patch that implements support for the SDL_GAMECONTROLLERCONFIG
> environment variable. It takes precedence over the registry key. Note that
> this supports mapping one controller, whereas the registry key supports
> multiple controllers.
>
> Applies after the patch for bug 48545.

I've applied both patches over 5.0.3, is there another dependency I'm not
aware? Turning +trace doesn't show the string being read.