Lua rocks on Mac

Install macports, install readline.

Install luajit.

Install luarocks.

Edit luarocks_installed/etc/luarocks/config-5.1.lua to use libs from /opt/local (those from macports):

external_deps_dirs = {
"/opt/local",
}


In luarocks install inspect, prompt.

/luarocks_installed/bin/luap

Enjoy repl with history and autocomplete.