powermanagement-interface version 0.3.19 failed to build on amd64 with GCC-4.6/oneiric

powermanagement-interface version 0.3.19 failed to build on amd64 with GCC-4.6/oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110413/+buildjob/2465561

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/2465561/+files/buildlog_ubuntu-natty-amd64.powermanagement-interface_0.3.19_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 806 lines into the build log:

gdm-logout-action.c:(.text+0x544): undefined reference to `g_free'
gdm-logout-action.c:(.text+0x54c): undefined reference to `g_free'
gdm-logout-action.o: In function `gdm_update_logout_actions.constprop.6':
gdm-logout-action.c:(.text+0x620): undefined reference to `g_free'
gdm-logout-action.c:(.text+0x65f): undefined reference to `g_strsplit'
gdm-logout-action.c:(.text+0x75c): undefined reference to `g_strfreev'
gdm-logout-action.o: In function `gdm_set_logout_action':
gdm-logout-action.c:(.text+0x7d8): undefined reference to `g_strdup_printf'
gdm-logout-action.c:(.text+0x7f3): undefined reference to `g_free'
gdm-logout-action.c:(.text+0x7fb): undefined reference to `g_free'
collect2: ld returned 1 exit status
make[1]: *** [gdm-signal] Error 1
make[1]: Leaving directory `/build/buildd/powermanagement-interface-0.3.19/gdm-signal'
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110425-1705
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/powermanagement-interface-0.3.19