https://bugs.winehq.org/show_bug.cgi?id=45085
--- Comment #8 from Forest forestcode@ixio.org --- Exacerbating the problem: The source code archives and package build scripts for winehq's ubuntu packages are apparently not published. They are not where they are supposed to be according to the official debian/ubuntu sources.list file (the deb-src entry that gets created when someone follows the official apt-add-repository instructions), they don't seem to be referenced anywhere else obvious, and nobody at the wine project has been forthcoming about how to get them. [1][2][3]
So, winehq.org is distributing binary packages without making their sources available. This makes it impossible for the people using those packages to reproduce them, let alone port them to a newer OS release.
At a quick glance, it looks like this might be more than just a frustration for users, but also an LGPL violation: "4. You may copy and distribute the Library (or a portion or derivative of it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you accompany it with the complete corresponding machine-readable source code"
If the ubuntu package issue does't deserve importance: critical status, then perhaps a new bug report describing this underlying problem does.
[1] Notice the absence of an answer in this thread: https://www.winehq.org/pipermail/wine-devel/2018-May/127507.html [2] Nobody had an answer for me on the two occasions when I asked on #winehackers irc this week. [3] Nobody responded when I emailed the package maintainers listed at https://wiki.winehq.org/Download