gshutdown version 0.2-0ubuntu4 failed to build in oneiric

gshutdown version 0.2-0ubuntu4 failed to build in oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2695145

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/2695145/+files/buildlog_ubuntu-oneiric-amd64.gshutdown_0.2-0ubuntu4_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 934 lines into the build log:

gui.c: In function 'traymenu':
gui.c:692:5: warning: the comparison will always evaluate as 'true' for the address of 'on_mnu_tray_cancel' will never be NULL [-Waddress]
gui.c:702:5: warning: the comparison will always evaluate as 'true' for the address of 'on_mnu_quit_activate' will never be NULL [-Waddress]
gui.c: In function 'confirm_dialog':
gui.c:732:37: warning: format not a string literal and no format arguments [-Wformat-security]
gui.c: In function 'detect_error_dialog':
gui.c:766:41: warning: format not a string literal and no format arguments [-Wformat-security]
make[3]: *** [gui.o] Error 1
make[3]: Leaving directory `/build/buildd/gshutdown-0.2/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/build/buildd/gshutdown-0.2'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/build/buildd/gshutdown-0.2'
make: *** [build-stamp] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110821-0258
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/gshutdown-0.2