navit version 0.5.0~svn4494+dfsg.1-1ubuntu1 failed to build in oneiric

navit version 0.5.0~svn4494+dfsg.1-1ubuntu1 failed to build in oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2706050

Details about the rebuild:
http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-20110816-oneiric.html

Direct link to the build log: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2706050/+files/buildlog_ubuntu-oneiric-amd64.navit_0.5.0%7Esvn4494%2Bdfsg.1-1ubuntu1_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 12587 lines into the build log:

   debian/rules override_dh_install
make[1]: Entering directory `/build/buildd/navit-0.5.0~svn4494+dfsg.1'
# Generate icon for Debian menu
mkdir -p /build/buildd/navit-0.5.0~svn4494+dfsg.1/debian/tmp/usr/share/pixmaps
convert /build/buildd/navit-0.5.0~svn4494+dfsg.1/navit/xpm/desktop_icons/128x128/navit.png -resize 32x32 /build/buildd/navit-0.5.0~svn4494+dfsg.1/debian/tmp/usr/share/pixmaps/navit.xpm
# Default navit configuration file moved into /etc
mkdir -p /build/buildd/navit-0.5.0~svn4494+dfsg.1/debian/tmp/etc/navit
mv /build/buildd/navit-0.5.0~svn4494+dfsg.1/debian/tmp/usr/share/navit/navit.xml \
    /build/buildd/navit-0.5.0~svn4494+dfsg.1/debian/tmp/etc/navit/
dh_install
dh_install: navit-graphics-qt-qpainter missing files (debian/tmp/usr/lib/navit/graphics/libgraphics_qt_qpainter*), aborting
make[1]: *** [override_dh_install] Error 255
make[1]: Leaving directory `/build/buildd/navit-0.5.0~svn4494+dfsg.1'
make: *** [binary-arch] Error 2
dpkg-buildpackage: error: /usr/bin/fakeroot debian/rules binary-arch gave error exit status 2
******************************************************************************
Build finished at 20110822-1916
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/navit-0.5.0~svn4494+dfsg.1