Please, change arch from noarch to arch. $ rpm -qpR perl-Net-DNS-0.48-alt1.1.noarch.rpm |egrep ^lib libc.so.6 libc.so.6(GLIBC_2.0) libc.so.6(GLIBC_2.1.3) libperl.so.5.8 libresolv.so.2 libresolv.so.2(GLIBC_2.2)
Fixed in 0.49-alt1.