No, this kernel patch will be different to what’s in Windows code. It implements what’s necessary for wine to be more performant, not the actual Windows API itself.
Wine implements those Windows API/ABIs, which is legal because it’s done by reverse-engineering. I believe in some countries (US?) it’s also necessary for the devs to never have seen Windows code.
PS: Google v. Oracle is a US supreme court decision where Oracle lost at trying to patent Java API’s.
Is there any risk of lawsuits from Microsoft for all these?
No, this kernel patch will be different to what’s in Windows code. It implements what’s necessary for wine to be more performant, not the actual Windows API itself.
Wine implements those Windows API/ABIs, which is legal because it’s done by reverse-engineering. I believe in some countries (US?) it’s also necessary for the devs to never have seen Windows code.
PS: Google v. Oracle is a US supreme court decision where Oracle lost at trying to patent Java API’s.
https://en.m.wikipedia.org/wiki/Google_LLC_v._Oracle_America,_Inc.