Need help installing GCC4.3 compiler for ARM on x86 platform

[Deepak Shekhar <dipaktc@gmail.com>]

Hello,

Am trying to install GCC 4.3 for ARM on x86 platform on Ubuntu desktop. 
When I try this command - "apt-get install gcc-4.3-arm-linux-gnueabi", I realise that we need the libraries libgmp3c2 and libmpfr1ldbl.

Are the cross compiled versions of these libraries readily available ? Or do I need to cross compile them before proceeding with the installation of GCC ?

How do I go about further. Kindly help.

Thanks,
Deepak