[libvirt] Trying to re-compile libvirt package on Ubuntu Lucid

I'm trying to rebuild Ubuntu's libvirt packages to turn on ESX support. I've downloaded the Ubuntu source package for Lucid (updated Lucid package) dget -u http://archive.ubuntu.com/ubuntu/pool/main/libv/libvirt/libvirt_0.7.5-5ub... I try and re-compile dpkg-buildpackage -rfakeroot -b DEB_BUILD_OPTIONS="--with-esx" fakeroot debian/rules binary and I get this error, when the unit tests are run: ... testing with corrupted config: log_level Skipping test (due to Ubuntu buildd FTBFS): running libvirtd with a valid config file (2 seconds) FAIL: daemon-conf PASS: define-dev-segfault ... ==================== 1 of 37 tests failed ==================== make[4]: *** [check-TESTS] Error 1 make[4]: Leaving directory `/exp/h1/staff/lnordin/libvirt-pkg/libvirt-0.7.5/tests' make[3]: *** [check-am] Error 2 make[3]: Leaving directory `/exp/h1/staff/lnordin/libvirt-pkg/libvirt-0.7.5/tests' make[2]: *** [check-recursive] Error 1 make[2]: Leaving directory `/exp/h1/staff/lnordin/libvirt-pkg/libvirt-0.7.5/tests' make[1]: *** [check-recursive] Error 1 make[1]: Leaving directory `/exp/h1/staff/lnordin/libvirt-pkg/libvirt-0.7.5' make: *** [debian/stamp-makefile-check] Error 2 Anyone gone through this exercise before and would know how to get the packages re-built?