Hi there

If you need to build your own arm-gcc on Linux , have a look here.

It doesn't support Cortex , but is build like yagarto and some multilib 
patches from GNUARM

http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=64025


Btw : I have only tried it on Ubuntu 8.04

Have fun

Bingo

Ps: Martin (MJT) thank you for your "always wise & helpfull ansvers"
    I'm almost 99% sure that you would look in to this topic :-)