Question

所以，我尝试在C ++项目（在 Visual Studio代码中）上使用 SDL2库。我使用 Mingw 进行编译，但仍然出现错误：

D:\Path/View/View.cpp:20: undefined reference to `SDL_Init'
D:\Path/View/View.cpp:21: undefined reference to `SDL_CreateWindow'
D:\Path/View/View.cpp:22: undefined reference to `SDL_CreateRenderer'
D:\Path/View/View.cpp:25: undefined reference to `SDL_GetError'
l:/common/mingw/bin/../lib/gcc/mingw32/6.3.0/../../../libmingw32.a(main.o):(.text.startup+0xa0): undefined reference to `WinMain@16'
collect2.exe: error: ld returned 1 exit status
The terminal process terminated with exit code: 1

我有以下任务来构建我的项目（在mingw文件夹中包含SDL库）：

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "label": "build",
            "type": "shell",
            "command": "g++",
            "args": [
                "-Wall",
                "-g","main.cpp",
                "-o","main.exe"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "problemMatcher": "$gcc"
        }
    ]
}

我也尝试以下方法：

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "label": "build",
            "type": "shell",
            "command": "g++",
            "args": [
                "-Wall",
                "-I","D:/Path/SDL2-2.0.8/i686-w64-mingw32/include",
                "-L","D:/Path/SDL2-2.0.8/i686-w64-mingw32/lib",
                "-lSDL2main",
                "-lSDL2",
                "-g","main.cpp",
                "-o","main.exe"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "problemMatcher": "$gcc"
        }
    ]
}

Intellisense在 include路径中正常工作：“ D：/Path/SDL2-2.0.8/i686-w64-mingw32/include”。我看不到我在哪里想念什么：I

Answer 1

我遇到了问题，显然 mingw 标志的顺序很重要（未找到为什么要思考）：

"args": [
    "-Wall",
    "-g","main.cpp",
    "-o","main.exe",
    "-lmingw32",
    "-lSDL2main",
    "-lSDL2"
],

或带有路径（-I表示include，-L表示库）

Mingw和SDL2包含（VS代码）

1 个答案: