嵌入式Lua 5.4.2链接错误 [英] Embedded Lua 5.4.2 Link Errors

问题描述

我试图通过CLion IDE和CMake使用嵌入在C中的Lua，但是遇到链接器错误.

I'm trying to use Lua embedded in C using the CLion IDE and CMake, but I'm running into linker errors.

运行该程序时，出现未定义符号:_luaL_newstate :

#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"

int main()
{
    lua_State *L = luaL_newstate();
    return 0;
}

这是我的CMake文件，它使用CMake在FindLua.cmake中内置的文件包.我正在使用CMake选项 -DCMAKE_CXX_FLAGS =-Wall -Wextra"-DCMAKE_C_FLAGS =-墙-Wextra" .

This is my CMake file, it uses CMake's built in FindLua.cmake to find the package. I'm using the CMake options -DCMAKE_CXX_FLAGS="-Wall -Wextra" -DCMAKE_C_FLAGS="-Wall -Wextra".

由 CMake 生成的失败的链接器命令是 lld-link.exe/nologo @CMakeFiles\LuaProjk.dir\objects1.rsp/out:C:\Users\b\CLionProjects\LuaProjk\bin\LuaProjk.exe/implib:LuaProjk.lib/pdb:C:\Users\b\CLionProjects\LuaProjk\bin\LuaProjk.pdb/version:0.0/machine:X86/debug/INCREMENTAL/subsystem:console C:\ Lua \ lua54.lib kernel32.lib user32.lib gdi32.lib winspool.lib shell32.lib ole32.lib oleaut32.lib uuid.lib comdlg32.lib advapi32.lib/MANIFEST/MANIFESTFILE:CMakeFiles\LuaProjk.dir/intermediate.manifest CMakeFiles \ LuaProjk.dir/manifest.res

The linker command generated by CMake that's failing is lld-link.exe /nologo @CMakeFiles\LuaProjk.dir\objects1.rsp /out:C:\Users\b\CLionProjects\LuaProjk\bin\LuaProjk.exe /implib:LuaProjk.lib /pdb:C:\Users\b\CLionProjects\LuaProjk\bin\LuaProjk.pdb /version:0.0 /machine:X86 /debug /INCREMENTAL /subsystem:console C:\Lua\lua54.lib kernel32.lib user32.lib gdi32.lib winspool.lib shell32.lib ole32.lib oleaut32.lib uuid.lib comdlg32.lib advapi32.lib /MANIFEST /MANIFESTFILE:CMakeFiles\LuaProjk.dir/intermediate.manifest CMakeFiles\LuaProjk.dir/manifest.res

cmake_minimum_required(VERSION 3.17)
project(LuaProjk C)

set(LUA_DIR /Lua)
set(LUA_INCLUDE_DIR /Lua/include)
find_package(Lua REQUIRED)
include_directories(${LUA_INCLUDE_DIR})

set(CMAKE_C_STANDARD 11)
set(SOURCE_FILES main.c)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ../../bin)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ../../lib)

add_executable(LuaProjk ${SOURCE_FILES})
target_link_libraries(LuaProjk ${LUA_LIBRARIES})

Lua目录包含lua54.dll和lua54.lib文件，以及包含所有标头的include目录.

The Lua directory contains the lua54.dll and lua54.lib files, as well as the include directory with all the headers.

我错过了什么吗?感谢您的帮助！

Am I missing something? Thanks for any help!

推荐答案

可以编译吗?...
(wait.c)

Can you compile this? ...
(wait.c)

/* This is a wait function for Lua
   It uses unistd.h > usleep()
   so wait(1000000) is a second
*/
#include <unistd.h>
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>

static int wait_c(lua_State *L){
 long msecs=lua_tointeger(L,-1);
 usleep(msecs);
 return 0;
}

int wait(lua_State *L){
 lua_register(L,"wait",wait_c);  
 return 0;
}

在Linux上，Makefile如下:

On linux the Makefile looks like:

all: wait.so

wait.so: wait.c
    gcc -shared -fPIC -o wait.so wait.c

clean:
    rm -v wait.so

...它可以通过两种方式加载...

...it can be loaded in two ways...

1. require('wait')
   ...或...
2. package.loadlib('wait.so'，'wait')()
   ... *.so是您当然需要的linux库:* .dll
   (我在Windows上没有C的IDE ；-))

这篇关于嵌入式Lua 5.4.2链接错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！