That works for Qt desktop environment such as KDE.
Does not work if you run Fluxbox.
scim-1.4.9 will not build on Slackware 13.1 without a patch. It was
not rebuilt between 13.0 and 13.1 -- have patched scim-1.4.9.tar.gz
and it builds now.
scim-bridge-0.4.16 has bugs ... I will fix and release new packages and
patches in the next day or so ... providing it works with gtk2 in Slackware 13.1.
If SCIM no longer works with Slackware, will build and try ibus ... then fcitx.