fso-gpsd version 0.8-3.1 failed to build on amd64 with GCC-4.6/oneiric

fso-gpsd version 0.8-3.1 failed to build on amd64 with GCC-4.6/oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110413/+buildjob/2450369

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/2450369/+files/buildlog_ubuntu-natty-amd64.fso-gpsd_0.8-3.1_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 1394 lines into the build log:

/build/buildd/fso-gpsd-0.8/fso-gpsd.c:2232: undefined reference to `g_io_channel_set_buffered'
/build/buildd/fso-gpsd-0.8/fso-gpsd.c:2234: undefined reference to `g_io_add_watch'
fso-gpsd.o: In function `main':
/build/buildd/fso-gpsd-0.8/fso-gpsd.c:2582: undefined reference to `g_timeout_add'
/build/buildd/fso-gpsd-0.8/fso-gpsd.c:2585: undefined reference to `g_main_loop_run'
fso-gpsd.o: In function `init_tcp_service':
/build/buildd/fso-gpsd-0.8/fso-gpsd.c:2245: undefined reference to `g_log'
fso-gpsd.o: In function `main':
/build/buildd/fso-gpsd-0.8/fso-gpsd.c:2473: undefined reference to `g_log'
collect2: ld returned 1 exit status
make[1]: *** [fso-gpsd] Error 1
make[1]: Leaving directory `/build/buildd/fso-gpsd-0.8'
dh_auto_build: make -j1 returned exit code 2
make: *** [build-stamp] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110422-1701
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/fso-gpsd-0.8