Hello wine-devel,
Looking at https://bugs.winehq.org/show_bug.cgi?id=35009, the problem is that windows uses completely different sorting weight tables from the official unicode version.
However, MS disclosed them under their "Open Specifications" program: https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-ucoderef/ (The tables are as download available, under the same license, according to MS support)
If we could use that, we should be able to produce the exact same sorting windows has. And to properly solve those unicode bugs, that's what we need.
However, two questions arise: 1) If we could, would we even want to use those tables? 2) Is the license of that content compatible with Wine?
Your thoughts on this? Question 1) is probably the easiest. The copyright notice can be found inside the PDF FWIW, but I don't really understand laywer- speak.
Regards, Fabian Maurer