libphone-ui version 0.1+git20100517-1 failed to build in oneiric

libphone-ui version 0.1+git20100517-1 failed to build in oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2702514

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/2702514/+files/buildlog_ubuntu-oneiric-amd64.libphone-ui_0.1%2Bgit20100517-1_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 769 lines into the build log:

libtool: compile: gcc -DHAVE_CONFIG_H -I. -I.. -DLOCALEDIR=\"/usr/share/locale\" -DPKGDATADIR=\"/usr/share/libphone-ui\" -DG_LOG_DOMAIN=\"libphone-ui\" -Wall -Wextra -Werror -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/dbus-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/fso-glib -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/fsoframework-2.0 -pthread -I/usr/include/dbus-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/frameworkd-glib -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/phone-utils -I/usr/include/alsa -g -O2 -g -O2 -Wall -c phoneui.c -o phoneui.o >/dev/null 2>&1
/bin/bash ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. -DLOCALEDIR=\"/usr/share/locale\" -DPKGDATADIR=\"/usr/share/libphone-ui\" -DG_LOG_DOMAIN=\"libphone-ui\" -Wall -Wextra -Werror -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/dbus-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/fso-glib -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/fsoframework-2.0 -pthread -I/usr/include/dbus-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/frameworkd-glib -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/phone-utils -I/usr/include/alsa -g -O2 -g -O2 -Wall -c -o phoneui-utils.lo phoneui-utils.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I.. -DLOCALEDIR=\"/usr/share/locale\" -DPKGDATADIR=\"/usr/share/libphone-ui\" -DG_LOG_DOMAIN=\"libphone-ui\" -Wall -Wextra -Werror -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/dbus-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/fso-glib -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/fsoframework-2.0 -pthread -I/usr/include/dbus-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/frameworkd-glib -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/phone-utils -I/usr/include/alsa -g -O2 -g -O2 -Wall -c phoneui-utils.c -fPIC -DPIC -o .libs/phoneui-utils.o
phoneui-utils.c: In function 'phoneui_utils_init':
phoneui-utils.c:84:6: error: variable 'ret' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors

make[3]: *** [phoneui-utils.lo] Error 1
make[3]: Leaving directory `/build/buildd/libphone-ui-0.1+git20100517/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/build/buildd/libphone-ui-0.1+git20100517'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/build/buildd/libphone-ui-0.1+git20100517'
make: *** [debian/stamp-makefile-build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110821-2224
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/libphone-ui-0.1+git20100517