Bug#2525: libc4 missing libdbm.a symlink

["Mark W. Eichin" <eichin@kitten.gen.ma.us>]

Package: libc4
Version: 4.6.27-11

/usr/i486-linuxaout/lib has a libgdbm.a and libgdbm.sa, and a symlink
from libdbm.sa -> libdbm.sa, but none from libdbm.a -> libgdbm.a...