Build fixes (was Anything more for xproto 7.0.22?)

[Julien Cristau]

On Sun, Jun  5, 2011 at 11:22:31 -0400, Gaetan Nadon wrote:

> An alternative is to install the *.db files in their respective packages
> and have the xorg-sgml-doctools masterdb point to the packages. Either

xorg-sgml-doctools doesn't know where the packages are installed, and
shouldn't have to know.  Please don't introduce a dependency loop here.

Cheers,
Julien