1 add USE flags:
 USE="${USE} scim unicode nls"

2
emerge -avuDN world

3  #  vim /etc/locale.gen;
    #  locale-gen
    #  env-update ; source  /etc/profile

4  add LANG="en_US.UTF-8" to /etc/env.d/02locale

5  set environment inf /etc/source of ~/.xinitrc
 export XMODIFIERS=@im=SCIM export GTK_IM_MODULE=scim export QT_IM_MODULE=scim
6  Sometimes: add line "scim -d &" to ~/.xinitrc


--
Liu Lantao
EMAIL: liulantao ( at ) gmail ( dot ) com ;
WEBSITE: http://www.liulantao.com/ .