环境

  • Lua(version 3.3.6)
  • LuaRocks(version 3.7.0)

本篇博文主要详细讲述 luasocket 安装过程中踩到过的坑。

安装流程

CMD 内输入 luarocks install luasocket

以下为安装过程中遇到的几个坑，记录一下

网络波动

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Warning: Failed searching manifest: Failed downloading https://luarocks.org/manifest-5.3 - host or service not provided, or not known
Warning: Failed searching manifest: Failed downloading https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/manifest-5.3 - host or service not provided, or not known
Warning: Failed searching manifest: Failed downloading https://luafr.org/luarocks/manifest-5.3 - host or service not provided, or not known
Warning: Failed searching manifest: Failed downloading http://luarocks.logiceditor.com/rocks/manifest-5.3 - host or service not provided, or not known

Error: No results matching query were found for Lua 5.3.
To check if it is available for other Lua versions, use --check-lua-versions.

解决办法：
多试几次就好了，实在不行手动下载 luasocket-3.0rc1-1.src.rock ，并在 luasocket-3.0rc1-1.src.rock 目录下使用 CMD 命令 luarocks install luasocket-3.0rc1-1.src.rock。

提示 mingw32-gcc.exe

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'mingw32-gcc' 不是内部或外部命令，也不是可运行的程序或批处理文件。

解决办法：
在 GCC 环境中 bin 文件夹中，找到 x86_64-w64-mingw32-gcc-9.2.0.exe，复制一份并改名成 mingw32-gcc.exe。

C 编译不通过

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src/luasocket.c: In function 'global_skip':
src/luasocket.c:67:18: warning: implicit declaration of function 'luaL_checkint'; did you mean 'luaL_checkany'? [-Wimplicit-function-declaration]
   67 |     int amount = luaL_checkint(L, 1);
      |                  ^~~~~~~~~~~~~
      |                  luaL_checkany

解决办法：

  1. 在 luasocket-3.0rc1-1.src.rock 目录下使用 CMD 命令 luarocks unpack luasocket-3.0rc1-1.src.rock 
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    |-- luasocket-3.0rc1-1
        |-- luasocket-3.0rc1-1
            |-- src
            |-- doc
            |-- luasocket-3.0rc1-1.rockspec
        |-- luasocket-3.0rc1-1.rockspec
        |-- v3.0-rc1.zip
  2. 增加 Lua 版本 3.3.6 兼容
    用文本编辑器打开里层的 luasocket-3.0rc1-1.rockspec 文件，找到 mingw32 并修改成以下
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    mingw32 = {
        "LUASOCKET_DEBUG",
        "LUASOCKET_INET_PTON",
        "LUA_COMPAT_5_2",
        "WINVER=0x0501",
        "LUASOCKET_API=__declspec(dllexport)",
        "MIME_API=__declspec(dllexport)"
    }
    其中新增的 LUA_COMPAT_5_2 为 Lua 5.3.6 向下兼容
  3. 安装
    在里层 luasocket-3.0rc1-1 目录下使用 CMD 命令 luarocks make luasocket-3.0rc1-1.rockspec

GCC 炸了

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C:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/windows/system32/ws2_32.dll when searching for -lws2_32
C:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/windows/system32/msvcrt.dll when searching for -lmsvcrt
C:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/windows/system32/advapi32.dll when searching for -ladvapi32
C:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/windows/system32/shell32.dll when searching for -lshell32
C:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/windows/system32/user32.dll when searching for -luser32
C:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/windows/system32/kernel32.dll when searching for -lkernel32
C:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/windows/system32/msvcrt.dll when searching for -lmsvcrt

解决办法：
低版本的 GCC 无法完整编译 luasocket ，更换高版本的 GCC ，博主这里用的是 x86_64-w64-mingw32-gcc-9.2.0.exe

Lua 找不到安装的依赖

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Lua 5.3.6  Copyright (C) 1994-2020 Lua.org, PUC-Rio
> require("socket")
stdin:1: module 'socket' not found:
        no field package.preload['socket']
        no file 'E:\kanri program\Lua\bin\lua\socket.lua'
        no file 'E:\kanri program\Lua\bin\lua\socket\init.lua'
        no file 'E:\kanri program\Lua\bin\socket.lua'
        no file 'E:\kanri program\Lua\bin\socket\init.lua'
        no file 'E:\kanri program\Lua\bin\..\share\lua\5.3\socket.lua'
        no file 'E:\kanri program\Lua\bin\..\share\lua\5.3\socket\init.lua'
        no file '.\socket.lua'
        no file '.\socket\init.lua'
        no file 'C:\Program Files (x86)\Lua\5.3.6\lua\socket.luac'
        no file 'E:\kanri program\Lua\bin\socket.dll'
        no file 'E:\kanri program\Lua\bin\..\lib\lua\5.3\socket.dll'
        no file 'E:\kanri program\Lua\bin\loadall.dll'
        no file '.\socket.dll'
stack traceback:
        [C]: in function 'require'
        stdin:1: in main chunk
        [C]: in ?

解决办法：
CMD 内输入 luarocks path --bin ，将路径添加到环境变量中
注意 CMD 内使用 SET 命令配置的环境变量只适用于当前 CMD 窗口