I noticed that raising an Emacs frame (latest master) with emacsclient does 
nothing under current Cinnamon. Emacs gains focus, but the focused window 
isn't raised.

I can reproduce the problem with xdotool's windowraise command, which 
similarly did nothing. xdotool windowactivate works though, so I'm guessing 
the EWMH activate code in xterm.c would similarly do the trick. Emacs used 
to use EWMH activate on frame raise but stopped in 2007 to work around 
deadlocks in a version of metacity in use at the time. Can we once again 
activate Emacs frames on raise?