Build Dep not properly specified

The following commands work without problems here in gutsy and it doesn't seem to need docbook or xorg-dev:
$ cd /tmp
$ apt-get source bochs
[...]
$ sudo apt-get build-dep bochs
[...]
$ cd bochs-2.3
$ debuild -B -us -uc
[...]

Can you please provide in which case (eg. which version of ubuntu you are using, on what command does it request the two missing packages, did you use the upstream package?) docbook or xorg-dev are needed?

Here is a patch. Debian control file is updated to list these packages as dependencies.

The patch is assuming the bug is correct.

xorg-dev is needed, i'm not sure about docbook.

I've removed the patch for the time being.

docbook-utils and libx11-dev are already listed. What failed?

OK, it seems libx11-dev is not enough to build. xorg-dev is required. here is a patch

I am using Feisty. Thanks for the response.

Bochs has docbook-utils in the build-dependencies which depends on docbook-dsssl. This depends on docbook. apt-get build-dep bochs in a clean chroot installs these three packages.
It builds fine in the same chroot without installing any other packages (no xorg-dev either). Therefore, i'll mark it as invalid. Reopen if you can give additional information on the xorg-dev dependency.