TruffleRuby provides the openssl module but not the native libssl system
library that the module uses. TruffleRuby requires version 1.0.2.
apt-get install libssl-dev
We recommend libssl-dev instead of libssl1.0.0, even though we aren't using
it for development because the latter doesn't seem to put the shared library in
a place where we can find it.
On macOS the system version is too old. We recommend installing via Homebrew.
brew install openssl
If libssl is in a non-standard location for your system, you can use the
option
-Xcexts.remap=libssl.so:path/to/libssl.so