[Bug 56647] ntdll-Junction_Points prevent rustup from correctly installing a toolchain

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56647

--- Comment #9 from Lorenzo Ferrillo  ---
Hi radek.

I'm building wine-staging on top of ntdll-Junction Points patchset with these 2
patches I attached before (the one on the first comment of the bug should
already be included IIRC in the patchset itself) and rustup works, at least
version 1.27.

These patches make wine treat unix mountpoints trasparently, instead of
reporting them as mount reparse point. It's probably not correct, the most
correct way should be to really treat them as reparse points, however the
patchset and wine itself lack the infrastructure to do so, so they error when
trying to use FSCTL_GET_REPARSE_POINT and FSCTL_SET_REPARSE_POINT stuffs.