As per
https://www.openssl.org/policies/releasestrat.html.
My fork has a branch that builds with OpenSSL 1.1.1d with related minor
fixes for one or some of the Pharo mvm. FWIW, that branch also updates
libssh2 and libgit2 C libraries to newer versions.
https://github.com/PierceNg/opensmalltalk-vm/tree/pierce_update3pPierce