Tutorial on how to call/load external .dll/.so from lua

[aldobr]

Is there any tutorial or help about how to call external libraries from lua scripts ?

[kaeza]

Is there any tutorial or help about how to call external libraries from lua scripts ?

The process is not easy, and there are some portability problems to be aware of; at least, IRC it does not work on Windows. This is because Minetest uses a statically linked Lua library, while mods *must* use either a Lua DLL, or statically link lua into the DLL you want to call.

If you don't mind about this page may help you on your quest.

[BrandonReese]

Like kaeza said there are lots of portability problems. If you want to use an external library anybody who wants to run your mod on their computer or server will be required to install the external library. I was working on a mod that needed socket access.

On ubuntu I just had to install the socket library

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sudo apt-get install luasocket

Then in my lua code it was just one line to include functionality from the socket library

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http = require("socket.http")

Note: I have not worked on this since Minetest started using LuaJIT, but I assume it should work the same.