Comment # 4 on bug 1205766 from Andreas Stieger

a is straightforward. c works fine since
https://build.opensuse.org/request/show/1035598 bumped the soversion. So you
could copy 0.15.1 wlroots into wlroots10 transitional package.  If the whole
set up upstream projects moves fast just wait a bit, or pull the minimal change
from git if they are small