[PATCH 0/1] MR10032: winemac.drv: Only set the app icon once per process.

[Tim Clem (＠tclem)]

set_app_icon does quite a bit of work, and macdrv_SetDesktopWindow
may be called from multiple threads. We only need to do it once.

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We used to only do this in process_attach before e4a43cfa1f44b4458bd347ce473846daa18f9326, when it was rightly moved so that we can ensure GDI is all set up.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/10032