redhat-cluster fails only on powerpc, with a funny dhshlibs error:
dh_shlibdeps -a -l/build/buildd/redhat-cluster-2.20080801/debian/tmp/usr/lib
dpkg-shlibdeps: failure: couldn't find library libcpg.so.2 needed by debian/cman/usr/sbin/gfs_controld (its RPATH is ').
Note: libraries are not searched in other binary packages that do not have any shlibs or symbols file.
To help dpkg-shlibdeps find private libraries, you might need to set LD_LIBRARY_PATH.
dh_shlibdeps: command returned error code 512
libcpg.so.2 is in the package libopenais2, which is installed,
otherwhise the build would already have failed while linking some
binaries.
I do not know what to do about this, other than asking you to check the
chroot, ans see what is wrong.