ogmrip-mpeg version 0.2-0.2 failed to build in oneiric

ogmrip-mpeg version 0.2-0.2 failed to build in oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2706899

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/2706899/+files/buildlog_ubuntu-oneiric-amd64.ogmrip-mpeg_0.2-0.2_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 1094 lines into the build log:

Making all in src
make[2]: Entering directory `/build/buildd/ogmrip-mpeg-0.2/src'
if /bin/bash ../libtool --tag=CC --mode=compile gcc -DPACKAGE_NAME=\"OGMRipMpeg\" -DPACKAGE_TARNAME=\"ogmripmpeg\" -DPACKAGE_VERSION=\"0.2\" -DPACKAGE_STRING=\"OGMRipMpeg\ 0.2\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"ogmrip-mpeg\" -DVERSION=\"0.2\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DSTDC_HEADERS=1 -DGETTEXT_PACKAGE=\"ogmrip-mpeg\" -DHAVE_LOCALE_H=1 -DHAVE_LC_MESSAGES=1 -DHAVE_BIND_TEXTDOMAIN_CODESET=1 -DHAVE_GETTEXT=1 -DENABLE_NLS=1 -DLOCALEDIR=\"/usr/share/locale\" -I. -I. -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/ogmrip -I/usr/include/ogmjob -I/usr/include/ogmdvd -pthread -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/pango-1.0 -I/usr/include/gio-unix-2.0/ -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/ogmrip -I/usr/include/ogmdvd -I/usr/include/gconf/2 -I/usr/include/libglade-2.0 -I/usr/include/ogmjob -I/usr/include/libxml2 -DOGMRIP_DATA_DIR=\""/usr/share/ogmrip"\" -g -O2 -I/usr/local/include -Wall -Werror -I.. -MT ogmrip-mpeg.lo -MD -MP -MF ".deps/ogmrip-mpeg.Tpo" -c -o ogmrip-mpeg.lo ogmrip-mpeg.c; \
 then mv -f ".deps/ogmrip-mpeg.Tpo" ".deps/ogmrip-mpeg.Plo"; else rm -f ".deps/ogmrip-mpeg.Tpo"; exit 1; fi
libtool: compile: gcc -DPACKAGE_NAME=\"OGMRipMpeg\" -DPACKAGE_TARNAME=\"ogmripmpeg\" -DPACKAGE_VERSION=\"0.2\" "-DPACKAGE_STRING=\"OGMRipMpeg 0.2\"" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"ogmrip-mpeg\" -DVERSION=\"0.2\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DSTDC_HEADERS=1 -DGETTEXT_PACKAGE=\"ogmrip-mpeg\" -DHAVE_LOCALE_H=1 -DHAVE_LC_MESSAGES=1 -DHAVE_BIND_TEXTDOMAIN_CODESET=1 -DHAVE_GETTEXT=1 -DENABLE_NLS=1 -DLOCALEDIR=\"/usr/share/locale\" -I. -I. -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/ogmrip -I/usr/include/ogmjob -I/usr/include/ogmdvd -pthread -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/pango-1.0 -I/usr/include/gio-unix-2.0/ -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/ogmrip -I/usr/include/ogmdvd -I/usr/include/gconf/2 -I/usr/include/libglade-2.0 -I/usr/include/ogmjob -I/usr/include/libxml2 -DOGMRIP_DATA_DIR=\"/usr/share/ogmrip\" -g -O2 -I/usr/local/include -Wall -Werror -I.. -MT ogmrip-mpeg.lo -MD -MP -MF .deps/ogmrip-mpeg.Tpo -c ogmrip-mpeg.c -fPIC -DPIC -o .libs/ogmrip-mpeg.o
ogmrip-mpeg.c: In function 'ogmrip_mpeg_class_init':
ogmrip-mpeg.c:534:19: error: variable 'settings' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors

make[2]: *** [ogmrip-mpeg.lo] Error 1
make[2]: Leaving directory `/build/buildd/ogmrip-mpeg-0.2/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/build/buildd/ogmrip-mpeg-0.2'
make: *** [build-stamp] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110822-1054
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/ogmrip-mpeg-0.2