Hunspell sources not found

[Jerome Warnier <jwarnier@beeznest.net>]

While trying to build on Sarge, I fixed already some problems I had, but
I get the following message, whatever I do:
Unpacking OO.o build tree - [ go make some tea ] ...
Linking rc3 to 2.0.0
Fixing unfortunate snafus
Copying mdbtools into the tree
Copying default evolution database into tree
Unpacking hunspell UNO sources
Copying hunspell library sources into the tree
cp: cannot stat
`/root/openoffice.org-2.0.0/ooo-build/src/hunspell-1.0.8.tar.gz': No
such file or directory
make[1]: ***
[/root/openoffice.org-2.0.0/ooo-build/build/ooo680-m3/unpack] Error 1
make[1]: Leaving directory `/root/openoffice.org-2.0.0/ooo-build'
make: *** [debian/stampdir/build] Error 2

I backported and installed libhunspell-dev (1.1.0-2), but even forcing
USE_SYSTEM_HUNSPELL=y in debian/rules does not find it. So I tried with
the internal version, but as you can see hereup, it is looking for a
file ooo-build/src/hunspell-1.0.8.tar.gz while there only exist the
following in that directory: hunspell_UNO_1.1.tar.gz
I guess this would be a problem also for anyone not using the system
hunspell.
How can I fix this?

Thanks
-- 
Jérôme Warnier
FLOSS Consultant
http://beeznest.net