使用Luarocks为LuaJIT 2.1安装LuaSocket时遇架构兼容及链接错误

尝试通过Luarocks为LuaJIT（2.1）安装LuaSocket时遇到报错：i386 architecture of input file lua51.dll is incompatible with i386:x86-64 output。尝试使用ld -m i386pe命令后，又出现cannot find -lm: No such file or directory错误。以下是两种参数下的运行日志：

使用ld -m i386pep时的日志 #

C:\Users\Administrator>luarocks --lua-version 5.1 install luasocket
Warning: Failed searching manifest: Failed downloading https://luarocks.org/manifest-5.1 - connection refused
Installing https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/luasocket-3.1.0-1.src.rock

luasocket 3.1.0-1 depends on lua >= 5.1 (5.1-1 provided by VM: success)
x86_64-w64-mingw32-gcc -O2 -c -o src/luasocket.o -IC:\Users\Administrator\Desktop\jit/include src/luasocket.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/timeout.o -IC:\Users\Administrator\Desktop\jit/include src/timeout.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/buffer.o -IC:\Users\Administrator\Desktop\jit/include src/buffer.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/io.o -IC:\Users\Administrator\Desktop\jit/include src/io.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/auxiliar.o -IC:\Users\Administrator\Desktop\jit/include src/auxiliar.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/options.o -IC:\Users\Administrator\Desktop\jit/include src/options.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/inet.o -IC:\Users\Administrator\Desktop\jit/include src/inet.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/except.o -IC:\Users\Administrator\Desktop\jit/include src/except.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/select.o -IC:\Users\Administrator\Desktop\jit/include src/select.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/tcp.o -IC:\Users\Administrator\Desktop\jit/include src/tcp.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/udp.o -IC:\Users\Administrator\Desktop\jit/include src/udp.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/compat.o -IC:\Users\Administrator\Desktop\jit/include src/compat.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/wsocket.o -IC:\Users\Administrator\Desktop\jit/include src/wsocket.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
ld -m i386pep  -shared -o C:\Users\ADMINI~1\AppData\Local\Temp\luarocks_build-LuaSocket-3.1.0-1-2118495\socket\core.dll src/luasocket.o src/timeout.o src/buffer.o src/io.o src/auxiliar.o src/options.o src/inet.o src/except.o src/select.o src/tcp.o src/udp.o src/compat.o src/wsocket.o -lws2_32 C:\Users\Administrator\Desktop\jit\bin\lua51.dll -lm
ld: i386 architecture of input file `C:\Users\Administrator\Desktop\jit\bin\lua51.dll' is incompatible with i386:x86-64 output
ld: src/luasocket.o:luasocket.c:(.text+0x20): undefined reference to `luaL_checkinteger'
ld: src/luasocket.o:luasocket.c:(.text+0x2b): undefined reference to `lua_gettop'
ld: src/luasocket.o:luasocket.c:(.text+0x6f): undefined reference to `lua_createtable'

使用ld -m i386pe时的日志 #

C:\Users\Administrator>luarocks --lua-version 5.1 install luasocket
Warning: Failed searching manifest: Failed downloading https://luarocks.org/manifest-5.1 - connection refused
Installing https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/luasocket-3.1.0-1.src.rock

luasocket 3.1.0-1 depends on lua >= 5.1 (5.1-1 provided by VM: success)
x86_64-w64-mingw32-gcc -O2 -c -o src/mime.o -IC:\Users\Administrator\Desktop\jit/include src/mime.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
x86_64-w64-mingw32-gcc -O2 -c -o src/compat.o -IC:\Users\Administrator\Desktop\jit/include src/compat.c -DLUASOCKET_DEBUG -DWINVER=0x0501 -Ic:\windows\system32\include
ld -m i386pe  -shared -o C:\Users\ADMINI~1\AppData\Local\Temp\luarocks_build-LuaSocket-3.1.0-1-710111\mime\core.dll src/mime.o src/compat.o -Lc:\windows\system32 C:\Users\Administrator\Desktop\jit\bin\lua51.dll -lm
ld: cannot find -lm: No such file or directory

Error: Build error: Failed compiling module mime\core.dll

操作系统为Windows 11，目前只有这两种ld模拟器模式，不知道如何获取更多模式解决问题。

核心问题分析 #

1. 架构不匹配：你用的是64位MinGW编译器（x86_64-w64-mingw32-gcc），但LuaJIT是32位版本（lua51.dll为i386架构），导致编译出的64位目标文件和32位LuaJIT无法兼容。
2. -lm参数无效：Windows环境下没有独立的数学库libm，数学函数已经整合到系统库msvcrt中，不需要额外链接-lm。

具体解决方案 #

方案1：切换到32位MinGW工具链

• 卸载当前的64位MinGW-w64，安装i686架构的MinGW-w64（32位版本），确保编译工具链和LuaJIT的架构完全一致。
• 若使用MSYS2，直接执行以下命令安装32位工具包：

  pacman -S mingw-w64-i686-toolchain
  

• 把32位MinGW的bin目录添加到系统PATH最前端，确保优先调用32位编译工具。

方案2：修改LuaRocks编译参数，移除-lm

• 找到LuaRocks的配置文件（通常在%USERPROFILE%\.luarocks\config-5.1.lua或LuaRocks安装目录下的config.lua），找到链接相关的配置项，删除-lm参数。
• 或者安装时临时指定链接参数，跳过-lm：

  luarocks --lua-version 5.1 install luasocket LDFLAGS="-lws2_32"
  

方案3：使用预编译二进制包

• 直接寻找适配32位LuaJIT的LuaSocket预编译rock包安装，避免源码编译的架构冲突问题。

内容的提问来源于stack exchange，提问作者user26588347