Debian build problem

I recently noticed that Rekall now supports EcmaScript, so I wanted to try
it out.  The version I needed is (2.3.4) is only available as source so I 
used CVS to pull down the latest source and set about building it.  I run
Debian (sid) so I was delighted to find that Rekall was all ready for me to
use dpkg-buildpackage, and so I started the build having set up the 
configuration.

But it would appear that the way in which the build is done expects 
some "internal" files when building the KJS support.  In particular the
object_object.h, internal.h, array_instance.h and debugger.h.  So I 
went looking for these on the Debian Packages site, only to find them
not there.  So I downloaded them from the KDE SVN site, and built the
pacakge - which works.

Then I looked a little more closely at the contents of the package and
discovered that the whole of KJS seems to have been copied into Rekall
and is then (re)built, rather than using the one I already have installed.
I also found that the files that were missing are present but obviously 
were not being used.  This seems odd, and I have to admit I know little
or nothing about scons so I do not really know where to start in tracking
this down.

David