xteddy version 2.2-2 failed to build in oneiric

xteddy version 2.2-2 failed to build in oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2715834

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/2715834/+files/buildlog_ubuntu-oneiric-amd64.xteddy_2.2-2_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 827 lines into the build log:

/build/buildd/xteddy-2.2/xteddy.c:419: undefined reference to `XCloseDisplay'
/build/buildd/xteddy-2.2/xteddy.c:375: undefined reference to `XUngrabKeyboard'
/build/buildd/xteddy-2.2/xteddy.c:409: undefined reference to `XRaiseWindow'
/build/buildd/xteddy-2.2/xteddy.c:370: undefined reference to `XGrabKeyboard'
/build/buildd/xteddy-2.2/xteddy.c:302: undefined reference to `XCreateBitmapFromData'
/build/buildd/xteddy-2.2/xteddy.c:308: undefined reference to `XCreatePixmapCursor'
/build/buildd/xteddy-2.2/xteddy.c:309: undefined reference to `XFreePixmap'
/build/buildd/xteddy-2.2/xteddy.c:236: undefined reference to `XDisplayName'
collect2: ld returned 1 exit status
make[2]: *** [xteddy] Error 1
make[2]: Leaving directory `/build/buildd/xteddy-2.2'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/build/buildd/xteddy-2.2'
make: *** [debian/stamp-makefile-build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110824-0803
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/xteddy-2.2