Need help using LuaRocks on Windows, to build Lua DLLs for 64-bit Windows, Lua 5.3

[simonx222]

I'm in the process of converting a Windows desktop application from 32-bit to 64-bit. The application supports Lua as an embedded scripting language, using version 5.3. I need new 64-bit, Lua 5.3 versions of all of the Lua DLLs. I have already found the code modules I need for CD, IM, IUP, LFS and LUACOM (thank you Antonio Scuri!). However, there are numerous DLLs I’m still missing these:

• MD5 dlls (core.dll and des56.dll)
• MIME dll (core.dll)
• ODBC dll (core.dll)
• Windows Sockets dll (core.dll)
• SQLite3 dll (lsqlite3.dll)

First - can anyone point me at binary versions of these, for x64 Windows (Lua 5.3 compatible)? If not, I presume I need to build them using LuaRocks?

Unfortunately, I have tried using LuaRocks to build them and can't get it to work. The all-in-one package seems to be designed for x86, Lua 5.1 - and in any case I got errors with it when I tried to build. So I tried using luarocks-3.9.2-windows-64.zip instead. This produced 2 files: LuaRocks.exe and LuaRocks-admin.exe. I had a 64-bit build of Lua 5.3. I opened the Visual Studio 2022 x64 Native Tools command prompt. I put Lua53.dll, luarocks.exe and luarocks-admin.exe on the PATH. I also created a rocktree structure corresponding to the structure outlined in "Rocks Repositories" at https://github.com/luarocks/luarocks/wiki/Rocks-repositories. And I tried putting folders from this on LUA_PATH and LUA_CPATH. But it's not working. First, the luarocks.exe seems to only want to use Lua 5.4. There are configuration options to set the Lua version, but I can't get any of them to work. Nothing seems to have any persistent effect. I also can't work out how to change values that seem to refer to Lua 5.4. For example, if I type "luarocks config", it includes this line:

LUALIB="lua5.4.lib",

How do I change it to "Lua53.lib" which is presumably what it should be?

If I try running "luarocks install md5" (for example), I get the message "Warning: Lua 5.4 interpreter not found at ... ". I also get the message "Error: Lua header found at D:\My\Lua64\Lua64\unzip\include does not match Lua version 5.4. You may want to override this by configuring LUA_INCDIR." I have tried configuring LUA_INCDIR but it doesn't seem to make any difference.

All help very much appreciated.

[hishamhm]

How do I change it to "Lua53.lib" which is presumably what it should be?

To change your default Lua version, try luarocks config lua_version 5.3

[simonx222]

Thanks hishamhm. Pretty sure I tried that. However, since I posted I have given up trying to use luarocks-3.9.2-windows-64.zip and instead have been using luarocks-3.6.0-windows-64.zip, which seemingly defaults to 5.3, and I've been having more luck with that. It looks like I can use this version to build the DLLs I need.