Adding files to /lib manually

Hi,

I am using a WP7702 module and trying to run mqttClient (from use_paho_linux_version branch). It requires for example libcrypto.so and libdnss_dns.so.2. Either the library is missing or version is wrong.

I have been working with WP8548 which worked fine. Do I need to contact the provider of the module (it has a custom firmware on it)? Or can these libraries be added manually somehow?
Thanks!

If I understand correctly you need to add it from externalBuild, since apt-get does not work on the target. But I am having some trouble understanding the Legato docs and how to actually accomplish this.