diff --git a/.gitignore b/.gitignore
index 9ea0f13..977d061 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
-.*
 !.gitignore
+.*
+build/
diff --git a/BlockLua.dll b/BlockLua.dll
deleted file mode 100644
index 962b4c3..0000000
Binary files a/BlockLua.dll and /dev/null differ
diff --git a/compile.bat b/compile.bat
index d812f9a..e514da8 100644
--- a/compile.bat
+++ b/compile.bat
@@ -5,12 +5,13 @@ set buildargs=-Wall -Werror -m32 -shared -Isrc -Iinc/tsfuncs -Iinc/lua -lpsapi -
 
 echo on
 
-g++ src/bllua4.cpp %buildargs% -o BlockLua.dll
-@rem g++ -DBLLUA_UNSAFE src/bllua4.cpp %buildargs% -o BlockLua-Unsafe.dll
+set outdir=build
+if not exist %outdir% mkdir %outdir%
+
+g++ src/bllua4.cpp %buildargs% -o %outdir%\BlockLua.dll
+@rem g++ -DBLLUA_UNSAFE src/bllua4.cpp %buildargs% -o %outdir%\BlockLua-Unsafe.dll
 
 @echo off
 
-rem objdump -d BlockLua.dll > BlockLua.dll.dump.txt
-rem objdump -d BlockLua-Unsafe.dll > BlockLua-Unsafe.dll.dump.txt
-
-pause
+rem objdump -d %outdir%\BlockLua.dll > %outdir%\BlockLua.dll.dump.txt
+rem objdump -d %outdir%\BlockLua-Unsafe.dll > %outdir%\BlockLua-Unsafe.dll.dump.txt
diff --git a/compile.sh b/compile.sh
new file mode 100644
index 0000000..c29cfda
--- /dev/null
+++ b/compile.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+#
+# BlockLua build script for MSYS2/MinGW32
+#
+# Usage:
+#   1. Open the MSYS2 MinGW32 shell.
+#   2. Install the required compiler with:
+#        pacman -S mingw-w64-i686-gcc
+#   3. Run this script:
+#        ./compile.sh
+#
+# If your MSYS2 installation is not on C:, adjust the g++ path below as needed.
+
+set -e
+
+cd "$(dirname "$0")"
+
+buildargs="-Wall -Werror -m32 -shared -Isrc -Iinc/tsfuncs -Iinc/lua -lpsapi -L. -llua5.1 -static-libgcc -static-libstdc++"
+
+outdir="build"
+mkdir -p "$outdir"
+
+set -x
+/mingw32/bin/g++ src/bllua4.cpp $buildargs -o "$outdir"/BlockLua.dll && /mingw32/bin/g++ -DBLLUA_UNSAFE src/bllua4.cpp $buildargs -o "$outdir"/BlockLua-Unsafe.dll
+set +x
+
+# objdump -d "$outdir"/BlockLua.dll > "$outdir"/BlockLua.dll.dump.txt
+# objdump -d "$outdir"/BlockLua-Unsafe.dll > "$outdir"/BlockLua-Unsafe.dll.dump.txt
diff --git a/src/util/libts-lua.lua b/src/util/libts-lua.lua
index 96ef5fc..5628c2e 100644
--- a/src/util/libts-lua.lua
+++ b/src/util/libts-lua.lua
@@ -7,7 +7,11 @@ ts = _bllua_ts
 
 -- Provide limited OS functions
 os = os or {}
+
+---@diagnostic disable-next-line: duplicate-set-field
 function os.time() return math.floor(tonumber(_bllua_ts.call('getSimTime'))/1000) end
+
+---@diagnostic disable-next-line: duplicate-set-field
 function os.clock() return tonumber(_bllua_ts.call('getSimTime'))/1000 end
 
 -- Virtual file class, emulating a file object as returned by io.open
@@ -106,9 +110,10 @@ local function io_open_absolute(fn, mode)
 end
 
 io = io or {}
+---@diagnostic disable-next-line: duplicate-set-field
 function io.open(fn, mode, errn)
 	errn = errn or 1
-	
+
 	-- try to open the file with relative path, otherwise use absolute path
 	local curfn = debug.getfilename(errn + 1) or _bllua_ts.getvar('Con::File')
 	if curfn == '' then curfn = nil end
@@ -126,13 +131,19 @@ function io.open(fn, mode, errn)
 		return fi, err, fn
 	end
 end
+
+---@diagnostic disable-next-line: duplicate-set-field
 function io.lines(fn)
-	local fi, err, fn2 = io.open(fn, nil, 2)
+	local fi, err, fn2 = io.open(fn, 'r', 2)
 	if not fi then error('Error opening file \''..fn2..'\': '..err, 2) end
 	return fi:lines()
 end
+
+---@diagnostic disable-next-line: duplicate-set-field
 function io.type(f)
+---@diagnostic disable-next-line: undefined-field
 	if type(f)=='table' and f._is_file then
+---@diagnostic disable-next-line: undefined-field
 		return f._is_open and 'file' or 'closed file'
 	else
 		return _bllua_io_type(f)