X server required to build a package

[Jakub Wilk <ubanus@users.sf.net>]

Hello,

I am currently packaging software[1] that requires X server to build its 
documentation. More precisely, it uses wxPython to generate merely
a single image[2].

Any ideas how to solve this issue? The obvious solution ("use xvfb") 
does not work for a reason or another.

Would it be acceptable to ship this single pre-built image somewhere in  
debian/ and patch the documentation building script to use it iff 
$DISPLAY is unset?

[1] http://bugs.debian.org/269527
[2] http://gamera.sourceforge.net/doc/html/images/draw_text_plugin_00.png

--
Jakub Wilk