Continuation of my work at #28422
Upstream mcpp is abandonware and is missing features newer versions of Ice
need to build. There are supposedly patches applicable to the official mcpp
that allows it to work but I couldn't see links to any (I'm guessing they live
in distros). Instead I tried packaging ZeroC's officially maintained stripped
down library only version (see previous commit e617a384).
Tests have been disabled because they take a disgustingly long time to build
and have to be hand blacklisted to the ones that don't fail on each platform.
I tested this package by building and running Murmur from the `mumble` package.
Almost all of the patches had completely bit-rotted, I salvaged a few that was
still relevant but the rest had to be thrown away. I made the changes
necessary to cross-compile to aarch64-musl but the result untested as I don't
have any exotic systems to test with (`mumble` was built for aarch64-musl
as well).
25bc7512a1