windows module lua5.1 Compilation fails

[july0426]

MSVC with LUA_INC / LUA_LIB / LUA_LIB_NAME environment variables. Windows 10 ,mlua 5.0.1 I set up,but faild. Can you give a more detailed example or configuration

[khvzak]

A first example is from github actions where I test Lua modules on Windows:
https://github.com/khvzak/mlua/blob/master/.github/workflows/main.yml#L186

A second example is using Windows + MSVC

1. Download binary Lua dll & lib (I used the luabinaries project, this file)
2. Unzip to lua51 folder
3. Go to mlua/examples/module
4. From git shell

$ LUA_INC=$HOME/Downloads/lua51/include LUA_LIB=$HOME/Downloads/lua51 LUA_LIB_NAME=lua5.1 cargo build --features lua51

Build ok, we got mlua/target/debug/rust_module.dll

For testing:

1. Go to mlua/target/debug
2. Run

$ lua5.1 -e 'print(require("rust_module").sum(2,3))'
5
$ lua5.1 -e 'print(require("rust_module").used_memory())'
35441

Windows 10, Latest MSVC Community, Git, Rust 1.49.0

[july0426]

Thank you very much for your reply. I succeeded !!!
The reason for the failure is that Lua's lib was downloaded incorrectly. I succeeded in both Lua5.1 and Lua5.4

[july0426]

Now I have a new problem. The compiled DLL is required and executed correctly by Lua54.exe, but not by LuaQuire in Rust. Any solution,
like this
`use mlua::prelude::*;

fn main() -> LuaResult<()> {
let lua = unsafe {Lua::new()};
lua.load(r#"print(require("my_module").sum(2,3))"#).exec()?;

Ok(())

}`

[khvzak]

The line
let lua = unsafe {Lua::new()};
should be replaced with
let lua = unsafe { Lua::unsafe_new() };
to allow loading C modules

[july0426]

DLL is compiled in features=['lua54','module'] mode
The rust project is compliated with eatures=['lua54','vendored'] mode

[july0426]

Lua library does not load properly without lua54. DLL, but I cannot find a way to link lua54. DLL to the library

[YooMoonMoon]

A first example is from github actions where I test Lua modules on Windows: https://github.com/khvzak/mlua/blob/master/.github/workflows/main.yml#L186

A second example is using Windows + MSVC

1. Download binary Lua dll & lib (I used the luabinaries project, this file)
2. Unzip to lua51 folder
3. Go to mlua/examples/module
4. From git shell

$ LUA_INC=$HOME/Downloads/lua51/include LUA_LIB=$HOME/Downloads/lua51 LUA_LIB_NAME=lua5.1 cargo build --features lua51

Build ok, we got mlua/target/debug/rust_module.dll

For testing:

1. Go to mlua/target/debug
2. Run

$ lua5.1 -e 'print(require("rust_module").sum(2,3))'
5
$ lua5.1 -e 'print(require("rust_module").used_memory())'
35441

Windows 10, Latest MSVC Community, Git, Rust 1.49.0

Excuse me, sir!
My computer is Windows 10 64 bit, installed with 64-bit Rust 1.82.0, and Lua is 32-bit. How should I compile it into a 32-bit DLL?
I have did the following settings:

1. Set the target platform in the bottom right corner of RustRover to "i686-pc-windows-msvc".
2. Modify the config file content in ".cargo" to:
   [target.i686-pc-windows-msvc]
   rustflags = [
   "-C", "link-arg=-undefined",
   "-C", "link-arg=dynamic_lookup",
   ]
3. Using "cd F:\rust_lua_src\mlua-0.10.0\examples\module" to switch to the module directory in RustRover's command line.
4. Enter git-bash.exe in the command line, and then show the "MINGW64:/f/rust_1ua_strc/mlua-0.10.0/sample/module" window.
5. Using "LUA_INC=F:/rust_1ua_strc/lua51-x86/include LUA_LIB=F:/rust_1ua_strc/lua51-x86 LUA_LIBNAME=lua5.1 cargo build -- features lua51" to compile in the window.
   I got an error:
   F: \ rust_1ua_Src \ lua51-x86 \ lua5.1.lib: warning LNK4272: The library computer type "x86" conflicts with the target computer type "x64".
   So,
   I have set the compilation platform to x86, but there are still errors and I don't know where the problem lies.
   If possible, can you answer for me?
   thank you.