instruct users to build shared OpenSSL libraries
instruct users to build shared OpenSSL libraries

Building and linking against shared libraries works around a problem
on NetBSD 7.0 where it uses the non-RFC3779 functions from the
system's libcrypt.so instead of the RFC3779-enabled functions from the
statically linked libcrypt.a.

Linux systems don't have this same problem for some reason.  It does
not hurt to build the shared libraries on Linux systems, however.

rhansen/rpstir,rhansen/rpstir,rhansen/rpstir,rhansen/rpstir,rhansen/rpstir