Hello Hamzeh, Take a look at gnu/packages/crates-io.scm for other examples of rust-openssl. We try to avoid vendored sources. Recent versions of rust-openssl-sys also complicate this by requiring particular versions of openssl. While it’s nice that they are explicit about the dependency, we don’t have them in the package set.
Finally and probably most immediately useful to you, check out gnu/packages/rust-apps.scm. You may need to set the OPENSSL_DIR environment variable to the location of the openssl dependency. I see the “vendored” feature in the Cargo.toml that makes me think this may not work, but that would be where I start. Good luck, John
