[gccsdk] Autobuilder and Scummvm

Hi,
I've just tried building ScummVM with the latest version of the autobuilder, it gets as far as building xcb-proto-1.7.1
Then I get the following error;

2012-05-04 21:52:19 URL:http://ftp.uk.debian.org/debian/pool/main/x/xcb-proto/xcb-proto_1.7.1.orig.tar.xz [60628/60628] -> "xcb-proto_1.7.1.orig.tar.xz" [1]
2012-05-04 21:52:19 URL:http://ftp.uk.debian.org/debian/pool/main/x/xcb-proto/xcb-proto_1.7.1-1.debian.tar.gz [4144/4144] -> "xcb-proto_1.7.1-1.debian.tar.gz" [1]
tar (child): *.orig.tar.bz2: Cannot open: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now
Autobuilder: source directory is /home/robheaton/Downloads/gccsdk/build/xcb-proto/xcb-proto-1.7.1
Autobuilder: Calling setvars
Autobuilder: Running make command: /home/robheaton/Downloads/gccsdk/env/ro-make
Autobuilder: No known build method
Package xcb-proto: ***Failure***
Dependency "xcb-proto" failed for libxcb1
Dependency "libxcb1" failed for libx11-6
Dependency "libx11-6" failed for libsdl1.2debian
Dependency "libsdl1.2debian" failed for scummvm
Build for package "scummvm" failed


Can anyone please help me to get ScummVM to build?
Many Thanks,
Rob.