Trying to build MSI 6119 coreboot BIOS

[Alex Buell]

I've just downloaded and built SeaBIOS ready to use with CoreBoot on my
old MSI 6119 motherboard. Unfortunately, CoreBoot is stopping with a
build error in src/lib/uart8250.c with an undeclared CONFIG_TTYS0_BASE 
error on line 83. I have checked and serial console output is definitely 
disabled in menuconfig.

Any ideas why? I'm using the latest svn checkout, many thanks!