[feisty] FTBFS

It seems to fail creating .po files:
XGETTEXT=/usr/bin/kde-xgettext EXTRACTATTR=/usr/bin/extractattr sh ./admin/cvs.sh extract-messages
Usage: cvs.sh <target>
Target can be one of:
    cvs cvs-clean dist
    configure.in configure.files
    package-merge package-messages

Usage: anything but extract-messages
make: [common-install-prehook-impl] Error 1 (ignored)
for file in po/*pot; do \
  sed "s/charset=CHARSET/charset=UTF-8/" -i $file; \
 done
sed: can't read po/*pot: No such file or directory
make: [common-install-prehook-impl] Error 2 (ignored)

and therefore it fails creating -dbg package:
pkgstriptranslations: kxgenerator-dbgsym does not contain translations, skipping
pkgstriptranslations: The following PO/POT files are empty. This is known to
cause trouble in the translation importer and generally indicates a package
bug:

./po/pl.po
make: *** [binary-strip-IMPL/kxgenerator] Error 1

I attached a proposed debdiff which should fix this issue. It removes the file during build, since I didn't want to create another orig tarball. Please tell me if you think it it better to delete it from orig tarball.
Thanks.