Currently, this fork has no unique name and make install (in short) will overwrite the original openssl library. That means that any (mostly security) tools have to compile statically or provide precompile libraries of this fork and it gives a lot of complications.
There are two tools at least which switched to this fork, see
rbsec/sslscan#126
nabla-c0d3/sslyze#116
So it would be good if you could rename this project to something like openssl-chacha or any other appropriate name, and fix it the all Makefiles