--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/luajit/src/msvcbuild.bat	Fri Jan 23 22:38:59 2026 -0800
@@ -0,0 +1,127 @@
+@rem Script to build LuaJIT with MSVC.
+@rem Copyright (C) 2005-2023 Mike Pall. See Copyright Notice in luajit.h
+@rem
+@rem Open a "Visual Studio Command Prompt" (either x86 or x64).
+@rem Then cd to this directory and run this script. Use the following
+@rem options (in order), if needed. The default is a dynamic release build.
+@rem
+@rem   nogc64   disable LJ_GC64 mode for x64
+@rem   debug    emit debug symbols
+@rem   amalg    amalgamated build
+@rem   static   static linkage
+
+@if not defined INCLUDE goto :FAIL
+
+@setlocal
+@rem Add more debug flags here, e.g. DEBUGCFLAGS=/DLUA_USE_APICHECK
+@set DEBUGCFLAGS=
+@set LJCOMPILE=cl /nologo /c /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_STDIO_INLINE=__declspec(dllexport)__inline
+@set LJLINK=link /nologo
+@set LJMT=mt /nologo
+@set LJLIB=lib /nologo /nodefaultlib
+@set DASMDIR=..\dynasm
+@set DASM=%DASMDIR%\dynasm.lua
+@set DASC=vm_x64.dasc
+@set LJDLLNAME=lua51.dll
+@set LJLIBNAME=lua51.lib
+@set BUILDTYPE=release
+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c lib_buffer.c
+
+%LJCOMPILE% host\minilua.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:minilua.exe minilua.obj
+@if errorlevel 1 goto :BAD
+if exist minilua.exe.manifest^
+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe
+
+@set DASMFLAGS=-D WIN -D JIT -D FFI -D P64
+@set LJARCH=x64
+@minilua
+@if errorlevel 8 goto :X64
+@set DASC=vm_x86.dasc
+@set DASMFLAGS=-D WIN -D JIT -D FFI
+@set LJARCH=x86
+@set LJCOMPILE=%LJCOMPILE% /arch:SSE2
+:X64
+@if "%1" neq "nogc64" goto :GC64
+@shift
+@set DASC=vm_x86.dasc
+@set LJCOMPILE=%LJCOMPILE% /DLUAJIT_DISABLE_GC64
+:GC64
+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h %DASC%
+@if errorlevel 1 goto :BAD
+
+%LJCOMPILE% /I "." /I %DASMDIR% host\buildvm*.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:buildvm.exe buildvm*.obj
+@if errorlevel 1 goto :BAD
+if exist buildvm.exe.manifest^
+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe
+
+buildvm -m peobj -o lj_vm.obj
+@if errorlevel 1 goto :BAD
+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m libdef -o lj_libdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m recdef -o lj_recdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c
+@if errorlevel 1 goto :BAD
+
+@if "%1" neq "debug" goto :NODEBUG
+@shift
+@set BUILDTYPE=debug
+@set LJCOMPILE=%LJCOMPILE% /Zi %DEBUGCFLAGS%
+@set LJLINK=%LJLINK% /opt:ref /opt:icf /incremental:no
+:NODEBUG
+@set LJLINK=%LJLINK% /%BUILDTYPE%
+@if "%1"=="amalg" goto :AMALGDLL
+@if "%1"=="static" goto :STATIC
+%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL lj_*.c lib_*.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /DLL /out:%LJDLLNAME% lj_*.obj lib_*.obj
+@if errorlevel 1 goto :BAD
+@goto :MTDLL
+:STATIC
+%LJCOMPILE% lj_*.c lib_*.c
+@if errorlevel 1 goto :BAD
+%LJLIB% /OUT:%LJLIBNAME% lj_*.obj lib_*.obj
+@if errorlevel 1 goto :BAD
+@goto :MTDLL
+:AMALGDLL
+%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL ljamalg.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /DLL /out:%LJDLLNAME% ljamalg.obj lj_vm.obj
+@if errorlevel 1 goto :BAD
+:MTDLL
+if exist %LJDLLNAME%.manifest^
+  %LJMT% -manifest %LJDLLNAME%.manifest -outputresource:%LJDLLNAME%;2
+
+%LJCOMPILE% luajit.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:luajit.exe luajit.obj %LJLIBNAME%
+@if errorlevel 1 goto :BAD
+if exist luajit.exe.manifest^
+  %LJMT% -manifest luajit.exe.manifest -outputresource:luajit.exe
+
+@del *.obj *.manifest minilua.exe buildvm.exe
+@del host\buildvm_arch.h
+@del lj_bcdef.h lj_ffdef.h lj_libdef.h lj_recdef.h lj_folddef.h
+@echo.
+@echo === Successfully built LuaJIT for Windows/%LJARCH% ===
+
+@goto :END
+:BAD
+@echo.
+@echo *******************************************************
+@echo *** Build FAILED -- Please check the error messages ***
+@echo *******************************************************
+@goto :END
+:FAIL
+@echo You must open a "Visual Studio Command Prompt" to run this script
+:END