condor version 7.2.4-0ubuntu4 failed to build on i386

condor version 7.2.4-0ubuntu4 failed to build on i386
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110329/+buildjob/2390261

Direct link to the build log: https://launchpad.net/ubuntu/+archive/test-rebuild-20110329/+buildjob/2390261/+files/buildlog_ubuntu-natty-i386.condor_7.2.4-0ubuntu4_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 976 lines into the build log:

# cd src && ./configure --disable-full-port --disable-gcc-version-check --disable-glibc-version-check --disable-rpm --disable-kbdd --disable-hibernation --disable-lease-manager --without-postgresql --without-gsoap --with-classads --disable-quill --without-krb5 --without-globus --without-coredumper --prefix=/usr
cd src && ./configure --disable-gcc-version-check --disable-glibc-version-check --disable-rpm --disable-kbdd --disable-quill --prefix=/usr --enable-proper --with-classads --without-gsoap --without-postgresql --disable-full-port
configure: checking for critical tools used by configure
checking for gawk... no
checking for mawk... mawk
checking for grep... /bin/grep
checking for cut... /usr/bin/cut
checking for which... /usr/bin/which
checking for perl... /usr/bin/perl
checking for perl version greater than or equal to 5.005_03... ok
configure: verifying build environment
checking for rpm... no
checking for sysctl... /sbin/sysctl
configure: determining host platform
configure: WARNING: Condor is not yet ported to Debian version
configure: WARNING: You may have trouble building and/or packaging Condor
checking architecture... I386
checking generic operating system... LINUX
checking operating system version... LINUX_DEBIAN_UNKNOWN
checking system identifying string... i386_debian_unknown
checking kernel revision... 2.6.24
checking exact libc version... ERROR
configure: error: Can not determine libc version on this machine
make: *** [configure-stamp] Error 1
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110403-1119
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/condor-7.2.4