security/libressl: Add the possibility to build only libtls

[Franco Fichtner]

> On 21. Aug 2017, at 11:59 AM, David Wahlund <david at dafnet.se> wrote:
> 
> I'd like to use the libtls library of LibreSSL on FreeBSD. Or the python bindings to libtls specifically. I do NOT however want to replace openssl or use the libssl library.
> 
> From what I understand it would be possible in practice as I assume it's only libssl that overwrites files used by openssl.
> 
> Would it be possible to create an option in LibreSSL, or preferably make a separate port, for libtls only? That way future ports can depend on libtls only. For example a future python-libtls port could depend on that.


Unless you build your own packages with OpenSSL from ports
you can just install LibreSSL and use it in your programs...

# pkg install libressl

OpenSSL lives in the base system, LibreSSL will be an optional
install under /usr/local.


Cheers,
Franco