Fails on Windows with Lua 5.4

[Tieske]

The failure is related to lua-path, which has platform specific code. See https://ci.appveyor.com/project/Tieske/penlight/builds/34814130/job/tum1pf3gm3eyh6jr

Though I'm not sure whether the fix should be here or in lua-path

[Tieske]

I had to put in a workaround; https://github.com/lunarmodules/Penlight/blob/59dc58abbea8b16cb28012fae23fb41a4147a84c/appveyor.yml#L22

If just installing "bit32" then LuaRocks would complain that it was natively present in the Lua engine (for Lua 5.2 and Lua 5.3), so had to wrap it in an if statement to only install on Lua 5.4.

BTW: @hishamhm is that a LuaRocks issue?

[alerque]

@Tieske Yes I think this is a LuaRocks issue, I reported it here: luarocks/luarocks#1204

[hishamhm]

Just pushed a PR to @alerque's issue luarocks/luarocks#1218

The weird bit here is why Lua 5.4 is failing with this.

[moteus]

Is it valid issue?
lua-path uses bit32 library only up to Lua 5.3. On Lua 5.3 and newer it uses bit operations.
So not sure how it can be broken by Lua 5.4

[Tieske]

This was fixed by luarocks.

workaround removal here: lunarmodules/Penlight#375

[Tieske]

thx @hishamhm @alerque @moteus for looking into it.