msys_compile.bat

compiling.md

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+## Compiling on Windows with MSYS2 (32-bit)
+
+Follow these steps to build `BlockLua.dll` for 32-bit Windows using MSYS2's MinGW-w64 i686 toolchain.
+
+### 1) Install MSYS2
+
+- Download and install MSYS2 from `https://www.msys2.org/`.
+- After installing, open the "MSYS2 MSYS" terminal once and update the package database if prompted.
+
+### 2) Install required packages (i686 / 32-bit)
+
+Run this in the "MSYS2 MSYS" or "MSYS2 MinGW 32-bit" terminal:
+
+```bash
+pacman -Sy --needed mingw-w64-i686-toolchain mingw-w64-i686-binutils mingw-w64-i686-lua51
+```
+
+What these packages are for:
+
+- mingw-w64-i686-toolchain: 32-bit C/C++ compiler suite (g++, libstdc++, runtime libs) to build Windows binaries.
+- mingw-w64-i686-binutils: Linker and binary utilities (ld, as, objdump) used by the compiler and for optional inspection.
+- mingw-w64-i686-lua51: Lua 5.1 development files for 32-bit (import library). We use its import library to link; at runtime you can use the provided `lua5.1.dll`.
+
+### 3) Build (PowerShell, recommended)
+
+- Open PowerShell in the repo root.
+- Run the script:
+
+```powershell
+msys_compile.bat
+```
+
+What the script does:
+
+- Temporarily prepends `C:\\msys64\\mingw32\\bin` to PATH so the 32-bit toolchain is used.
+- Compiles the project with `-m32` and links against `lua5.1`.
+- Produces `build\BlockLua.dll` and `build\BlockLua-Unsafe.dll`.
+
+### 4) Optional: Verify 32-bit output
+
+If you installed binutils, you can check the architecture:
+
+```powershell
+objdump -f build\BlockLua.dll | Select-String i386
+```
+
+You should see `architecture: i386` in the output.
+
+### Notes
+
+- Ensure you installed the i686 (32-bit) variants of the packages; x86_64 packages won’t work for a 32-bit build.
+- If the linker cannot find `-llua5.1`, confirm `mingw-w64-i686-lua51` is installed and you are using the `mingw32` toolchain (not `x86_64`).

msys_compile.bat

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+@echo off
+cd /d %~dp0
+
+set "PATH=C:\msys64\mingw32\bin;%PATH%"
+
+if not exist build mkdir build
+
+set buildargs=-Wall -Werror -m32 -shared -Isrc -Iinc/tsfuncs -Iinc/lua -lpsapi -L. -llua5.1 -static-libgcc -static-libstdc++
+
+echo on
+g++ src/bllua4.cpp %buildargs% -o build\BlockLua.dll
+g++ -DBLLUA_UNSAFE src/bllua4.cpp %buildargs% -o build\BlockLua-Unsafe.dll
+@echo off