c++ - 如何从 MAC 中的/Library/Framework 文件夹中包含 C++ 中的文件

Question

我正在尝试使用 SDL。我在 /Library/Frameworks 中有一个名为 SDL2.framework 的文件夹。我想在我的项目中包含文件 SDL.h。我该怎么做呢？我的代码如下所示:

// Example program:
// Using SDL2 to create an application window

#include <SDL.h>
#include <stdio.h>

int main(int argc, char* argv[]) {
    SDL_Window *window;                    // Declare a pointer
    SDL_Init(SDL_INIT_VIDEO);              // Initialize SDL2
    // Create an application window with the following settings:
    window = SDL_CreateWindow(
        "An SDL2 window",                  // window title
        SDL_WINDOWPOS_UNDEFINED,           // initial x position
        SDL_WINDOWPOS_UNDEFINED,           // initial y position
        640,                               // width, in pixels
        480,                               // height, in pixels
        SDL_WINDOW_OPENGL                  // flags - see below
    );
    // Check that the window was successfully made
    if (window == NULL) {
        // In the event that the window could not be made...
        printf("Could not create window: %s\n", SDL_GetError());
        return 1;
    }
    // The window is open: enter program loop (see SDL_PollEvent)
    SDL_Delay(3000);  // Pause execution for 3000 milliseconds, for example
    // Close and destroy the window
    SDL_DestroyWindow(window);
    // Clean up
    SDL_Quit();
    return 0;
}

我得到的错误是:

Aarons-MacBook-Air:SDL aaron$ g++ main.cpp
main.cpp:4:10: fatal error: 'SDL.h' file not found
#include <SDL.h>
          ^ 1 error generated.

如何正确包含 SDL 文件？它位于SDL2.framework、headers、SDL.h...

Answer 1

显然你会想要为此制作一个构建脚本，但重要的部分是:

-I/usr/local/include或者安装 header 的任何地方。

我用的是家酿:

brew install sdl2

将库放在 /usr/local/Cellar/ 中

所以如果你需要指定lib路径你还要添加:

-L/usr/local/lib -lSDL2

我还将您的包含行更改为 #include <SDL2/SDL.h>