How to find the missing .so when installing DS-5(64 bit) for Linux

I try to install DS-5 for Linux(64 bit) on my Ubuntu 12.04.5(64 bit), and it warns me that a bunch of libraries are missing:

One or more of the DS-5 system dependencies are not installed, see below for a list of the missing libraries.

libc.so.6 (32-bit)
libfontconfig.so.1 (32-bit)
libfreetype.so.6 (32-bit)
libGL.so.1 (32-bit)
libICE.so.6 (32-bit)
libncurses.so.5 (32-bit)
libSM.so.6 (32-bit)
libstdc++.so.6 (32-bit)
libusb-0.1.so.4 (32-bit)
libX11.so.6 (32-bit)
libXcursor.so.1 (32-bit)
libXext.so.6 (32-bit)
libXft.so.2 (32-bit)
libXmu.so.6 (32-bit)
libXrandr.so.2 (32-bit)
libXrender.so.1 (32-bit)
libz.so.1 (32-bit)
One of:
libwebkitgtk-1.0.so.0 (64-bit)
libwebkit-1.0.so.2 (64-bit)
libxpcom.so (64-bit)

How should I find these .so libs? I tried to use apt-get but no package was found, and found nothing in http://www.rpmfind.net/

Anyone knows how to solve this problem?

Thanks a lot.