Ubuntu 8.10 (Intrepid Ibex) (also applies to Kubuntu 8.10 and Xubuntu 8.10 and any other *buntu 8.10)
sudo apt-get install build-essential libsdl1.2-dev libgtk2.0-dev libxinerama-dev libgconf2-dev
sudo apt-get install gcc-4.2
make CCemail@example.com LDfirstname.lastname@example.org
make CCemail@example.com LDfirstname.lastname@example.org PTR64=1
You may of course edit the makefile as well.
gcc 4.3 exhibits certain bugs when compiling mame both in 32bit and 64bit. Therefore we need to explicitly specify CC and LD to use gcc 4.2.
Tested on a fresh install from the Live-CD as well as on my regular system.
Note: If you do not need pbuilder you may "apt-get remove" gcc-4.3 as well. But then you have to create the link "/usr/bin/gcc" yourself.