missing syncdir lib??

[Chris Moore]

I know someone is going to think this is a stupid question, but I am having
problems rebuilding qmail-1.03+patches.  The 'make setup check' fails with
the following:

./load auto-str substdio.a error.a str.a
/usr/bin/ld: cannot find -lsyncdir
collect2: ld returned 1 exit status
make: ***[auto-str] Error 1

It appears I don't have 'libsyncdir.a' ??  What package includes this? I
just wanted to patch and upgrade my working qmail system, which installed
perfectly originally.

Thanks!
...
Chris