https://bugs.winehq.org/show_bug.cgi?id=43850
--- Comment #2 from Sebastian Lackner sebastian@fds-team.de --- (In reply to bellamorte42 from comment #0)
fixme:d3d:wined3d_dxtn_init Wine cannot find the txc_dxtn library, DXTn software support unavailable.
Mesa now incorporates the functionality directly, and the standalone library conflicts with the driver.
Now that all patents have expired it should no longer be a problem to implement it directly in Wine. I'm still a bit surprised that it can no longer be installed. What exactly is the package conflict you get, or have the packages been removed from your repositories? Which distribution do you use?
(In reply to Fabian Maurer from comment #1)
This is only an issue with wine-staging, i.e. it works with vanilla wine?
Yes, this is a Wine Staging specific feature.