A recent change in redhat-rpm-config makes the
hardened builds link with -Wl,-z,defs.
See RHBZ#1535422 for the bug which introduced this
change in redhat-rpm-config.
That change, in turn, provokes a build failure due
to a missing lib not being listed when linking
libfontmanager.so.
Resolves RHBZ#1538767
