Okay. Big (possible controversial changes) to the cmake build system.
I am officially killing the local/global build crap. The «local» build thing should never have existed. There is now only one build that is essentially what the «global» build was before. This is the way a proper build system should work. I will soon write a wiki page to describe how to properly use the cmake build system, and how you can still set things up to get the «local» build from before. However, that type of build should be considered a developer tool, and not the way that dolphin-emu should be built.
Briefly, to use cmake now do the following from the toplevel of dolphin’s source:
make install (you may need superuser privileges)
Note that the scons build is still building dolphin in the old way.