Additional notes with ubuntu 18.04
Thought i would try compiling against openssl 1.0.2u to see what effect that had. Although open ssl would compile correctly, tlsa would complain when trying to link against 1.02u.
Solution was to re-rerun the openssl ./config script with the suggested compiler flag in the build error, then rebuild openssl and TLSA
``` test@kamtest:/usr/local/src/openssl-1.0.2u/openssl-1.0.2u$ ./config -fPIC test@kamtest:/usr/local/src/openssl-1.0.2u/openssl-1.0.2u$ make test@kamtest:/usr/local/src/openssl-1.0.2u/openssl-1.0.2u$ make test test@kamtest:/usr/local/src/openssl-1.0.2u/openssl-1.0.2u$ cd ../../kamailio test@kamtest:/usr/local/src/openssl-1.0.2u/openssl-1.0.2u$ make test@kamtest:/usr/local/src/openssl-1.0.2u/openssl-1.0.2u$ sudo make install ```