How do I get the xorg sdk?

[Dave M G]

Ubuntu users,

	I'm still trying to configure my tablet. The installation configuration
program will not build certain components unless I have something called
an "xorg SDK".
	After some searching on the net, it seems I might find what I'm looking
for in a package called "xorg-xqq-sdk". But I could not find it.
dave at ubuntu1:~/Desktop/linuxwacom-0.7.0$ sudo apt-get install
xorg-x11-sdk
Reading package lists... Done
Building dependency tree... Done
E: Couldn't find package xorg-x11-sdk

	Where can I get the xorg sdk?

--
Dave M G