只包括SDL头导致链接器错误 [英] Simply including SDL header causes linker error

问题描述

我要将我的游戏从glut迁移到sdl。

I was going to migrate my game from glut to sdl.

它完全在glut中工作，但我想使用一些sdl功能。

It's working perfectly in glut but I wanted to use some sdl features.

所以我进入我的项目属性，在目标头下我点击将编译的程序，构建阶段，链接二进制库和库，添加SDL.framework

So I go into my project properties, under the targets header I click the program that will be compiled, build phases, link binary with libraries, add SDL.framework

与我为OpenGL.framework和GLUT.framework做的完全相同

The exact same as I have done for OpenGL.framework and GLUT.framework

但是当我添加： #include < SDL / SDL.h> 在我尝试生成时出现链接器错误：

However when I add: #include <SDL/SDL.h> it comes up with a linker error when I try to build:

Undefined symbols for architecture x86_64:
  "_main", referenced from:
      __start in crt1.o
     (maybe you meant: _SDL_main)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

$

推荐答案

SDL使用一个宏重命名 main（..），并且应该提供自己的，通常在 SDLmain.m 中实现。它应与SDL.framework一起提供。

SDL uses a macro to rename your main(..) and should supply its own, usually implemented in SDLmain.m. It should be supplied together with the SDL.framework.

从此处下载框架时 http ：//www.libsdl.org/download-1.2.php 阅读 devel-lite ReadMeDevLite.txt c $ c>文件夹。

When you download the framework from here http://www.libsdl.org/download-1.2.php Read the ReadMeDevLite.txt in the devel-lite folder.

另一个描述
http://www.meandmark.com/sdlopenglpart2.html

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