moonfltk in Lua 5.3

[minosimo]

I found stetre/moonfltk#29, but I can't seem to get freeflow to run. I think I got the dependencies all installed ok, but when running main.lua I get

luajit: error loading module 'moonfltk' from file '/home/simon/.luarocks/lib64/lua/5.1/moonfltk.so':
/home/simon/.luarocks/lib64/lua/5.1/moonfltk.so: undefined symbol: lua_newuserdatauv
stack traceback:

Since stetre does not want to officially support 5.1 I thought I'd ask here. I really believe in the idea behind freeflow and would love to try it out and contribute!

[jmthackett]

Hi Simon!

It is great that you want to try this out, thanks!

Good find on that issue. I ended up building moonfltk by running make LUAVER=5.1 in the moonfltk repo, and then copying src/moonfltk.so in the freeflow repo to the root of the freeflow repo. Luajit should pick it up then.

The problem you'll likely have is that I've not finished porting it to FLTK yet, and it is buggy and a bit broken. It also has some pretty bad code in it. So, be forewarned.

What kind of contribution would you be interested in making? I'm curious to know if you had anything in mind.

(edited for clarity)

[minosimo]

I tried that as well, but moonfltk.so ends up identical with 5.1 or 5.4

As a first contribution I thought I'd add some Fedora instructions for the dependencies. I have some experience writing lua plugins for REAPER, so I hope to be of small use somewhere.

[jmthackett]

In which case I'll have a look in the morning and see what I can work out

[jmthackett]

Can you share your cpath? Like so:

$ luajit
LuaJIT 2.1.1696795921 -- Copyright (C) 2005-2023 Mike Pall. https://luajit.org/
JIT: ON SSE3 SSE4.1 BMI2 fold cse dce fwd dse narrow loop abc sink fuse
> =package.path
./?.lua;/usr/share/luajit-2.1/?.lua;/usr/local/share/lua/5.1/?.lua;/usr/local/share/lua/5.1/?/init.lua;/usr/share/lua/5.1/?.lua;/usr/share/lua/5.1/?/init.lua
> =package.cpath
./?.so;/usr/local/lib/lua/5.1/?.so;/usr/lib/lua/5.1/?.so;/usr/local/lib/lua/5.1/loadall.so
> 

[minosimo]

I've been using luarocks so I set the LUA_PATH using luarocks path --bin --lua-version=5.1

> =package.path
/usr/share/lua/5.1/?.lua;/usr/share/lua/5.1/?/init.lua;/usr/lib64/lua/5.1/?.lua;/usr/lib64/lua/5.1/?/init.lua;./?.lua;./?/init.lua;/home/simon/.luarocks/share/lua/5.1/?.lua;/home/simon/.luarocks/share/lua/5.1/?/init.lua
> =package.cpath
/usr/lib64/lua/5.1/?.so;/usr/lib64/lua/5.1/loadall.so;./?.so;/home/simon/.luarocks/lib64/lua/5.1/?.so