Actualiser Lua installation on windows

Lua-installation-on-windows.md

@@ -1,5 +1,47 @@
+# msys2
+
+Install [msys2](https://www.msys2.org/) app.
+
+In the msys shell execute the following commands
+
+`pacman -S mingw-w64-ucrt-x86_64-gcc mingw-w64-ucrt-x86_64-make tar`
+
+add msys path in the environment
+
+`C:\msys64\ucrt64\bin`
+
+# lua
+
+copy lua somewhere
+
+`wget https://www.lua.org/ftp/lua-5.4.7.tar.gz`
+
+compile it
+
+`tar -xvzf lua-5.4.7.tar.gz`
+
+`cd lua-5.4.7/`
+
+`mingw32-make mingw`
+
+copy the files in lua dir (here `C:\lua`)
+
+`cp src/*.exe src/*.dll /c/lua/`
+
+`cp -v src/lapi.h src/lauxlib.h src/lua.h src/luaconf.h src/lualib.h ../include/`
+
+add lua path in the env
+
+`C:\lua`
+
 # Luarocks
 
-There is a luarocks installer on this [site](https://github.com/rjpcomputing/luaforwindows/releases).
+download luarocks from [github](https://github.com/luarocks/luarocks/archive/refs/tags/v3.12.2.zip)
 
-However, there's also a minimal compilation environment to be ready. I used [msys2](https://www.msys2.org/), installed gcc and added the "usr/bin" dir in path.
+extract it and from the cmd shell call the following command (to be installed in `c:\luarocks` here)
+
+`./install.bat /MW /P "C:\luarocks"`
+
+add luarocks path in the env
+
+`C:\luarocks`