ibus [>= 1.2.0]
python(abi) [== 2.7]
I discovered that I missed a couple. Most of them are already installed. However, even having all of them, iBus refused to launch.
I followed the instructions on this page to activate iBus:
$ pkill -9 ibus $ ps -ef | grep ibus $ /usr/bin/ibus-daemon --xim &
The last command activated iBus, but it did not remember the IME selection (Japanese, Anthy).
The page also said this, which I did not understand:
After ibus-daemon is invoked, Run ibus-setup to set the preference, enable input methods, also start ibus daemon.
$ ps -ef | grep ibus foo 15735 15518 0 11:30 pts/3 00:00:17 /usr/bin/ibus-daemon --xim foo 20037 15735 0 12:58 pts/3 00:00:00 /usr/libexec/ibus-gconf foo 20039 15735 0 12:58 pts/3 00:00:06 python /usr/share/ibus/ui/gtk/main.py foo 20041 1 0 12:58 pts/3 00:00:00 /usr/libexec/ibus-x11 --kill-daemon foo 20042 15735 0 12:58 pts/3 00:00:01 python /usr/share/ibus-anthy/engine/main.py --ibus
So, that's as far as I have gotten now...