The compiler that:
- generates a Yul (https://docs.soliditylang.org/en/latest/yul.html) code from an OCaml code,
- passes the compiled result to
solc, and - saves the result
.jsonfile including an ABI and an EVM code.
By dune exec ocamyulc <parent>/<dirname>/<filename>.ml,
.json file for <filename>.ml is generated and saved in <parent>/contracts directory.
Before compiling, you need to install solc, not solcjs.
For installation, refer to https://docs.soliditylang.org/en/latest/installing-solidity.html#linux-packages.
See sample/READEME.md.