Don't try to build libssh if NO_OPENSSL is defined because NO_OPENSSL implies NO_OPENSSH.
Don't try to build libssh if NO_OPENSSL is defined because NO_OPENSSL implies
NO_OPENSSH.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase