doodle version 0.6.7-10 failed to build on amd64 with GCC-4.6/oneiric

doodle version 0.6.7-10 failed to build on amd64 with GCC-4.6/oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110413/+buildjob/2448756

Details about the rebuild:
https://lists.ubuntu.com/archives/ubuntu-devel/2011-April/033042.html

Direct link to the build log: https://launchpad.net/ubuntu/+archive/test-rebuild-20110413/+buildjob/2448756/+files/buildlog_ubuntu-natty-amd64.doodle_0.6.7-10_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 1337 lines into the build log:

/build/buildd/doodle-0.6.7/src/doodle/index.c:370: undefined reference to `EXTRACTOR_freeKeywords'
collect2: ld returned 1 exit status
make[5]: *** [doodled] Error 1
make[5]: Leaving directory `/build/buildd/doodle-0.6.7/src/doodle'
make[4]: *** [all-recursive] Error 1
make[4]: Leaving directory `/build/buildd/doodle-0.6.7/src/doodle'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/build/buildd/doodle-0.6.7/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/build/buildd/doodle-0.6.7'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/build/buildd/doodle-0.6.7'
dh_auto_build: make -j1 returned exit code 2
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110422-0729
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/doodle-0.6.7