glibmm 2.40.0
glibmm: update 2.40.0 bottle.
gtk+3 3.12.1
gtk+3: update 3.12.1 bottle.
CompilerFailure: llvm can't build C++11 either
mpd: specify libc++ for clang

Closes #28399.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
mess: drop the x11 requirement

It was only being used to get the OpenGL headers. Solved by using
the OpenGL framework.
mess: add 0.153 bottle.