Gentoo install libgtk-x11-2.0.so.0

Params:
OS: Linux solar 3.1.6-gentoo #16 SMP Thu Jan 5 14:49:10 GMT 2012 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ AuthenticAMD GNU/Linux

Problem:
I trying to run LDOCE5 and have this error:

Error while loading shared libraries: libgtk-x11-2.0.so.0. 

32bit applications need 32bit libraries, but I have 64bit system.

Solution: 

Many 32bit libraries on 64bit gentoo you can install with package app-emulation/emul-linux-x86-gtklibs. Also this package has needed libgtk-x11-2.0.so.0

> emerge app-emulation/emul-linux-x86-gtklibs  -av