‘MIX_INIT_MP3’ was not declared in this scope,这是什么情况？

使用SDL_Mixer写例程，程序才到初始化就进行不下去了，代码如下：

int nFlag=MIX_INIT_MP3;
   int nRet=Mix_Init(nFlag);
   if(nRet&nFlag!=nFlag)
      return false;

报错信息是：

‘MIX_INIT_MP3’ was not declared in this scope

NND，按官方手册写的代码也报错？还是低级错。这不是坑爹吗？在SDL_Mixer.h里找了半天也没有关于MIX_INIT_MP3和Mix_Init的声明，什么情况？

放狗一查，果然有倒霉孩子和我一样，原文如下：

“I just noticed that on my Ubuntu 9.10 system, the SDL 1.2.8 version of SDL_mixer does not define Mix_Init() or Mix_Quit(). However with SDL 1.2.10, it does. Here's the SDL_mixer.h header file with version 1.2.10:
http://svn.euclids-dream.com/repos/g...DL/SDL_mixer.h ”

大意是利用UBUNTU9.10新立得软件包管理器安装的SDL_mixer是1.2.8版，而Mix_Init和MIX_INIT_MP3出现在1.2.10版中。原文中还给出了1.2.10版SDL_mixer.h的查看地址。

签于本人用的是UBUNTU10.04，于是乎赶紧查了一下本机的SDL_mixer版本，果然也是1.2.8版。问题找到后就好解决了，删除这段代码，直接Mix_OpenAudio，照样能加载播放MP3文件。

转载于:https://www.cnblogs.com/lykyl/archive/2011/05/06/2038430.html

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‘MIX_INIT_MP3’ was not declared in this scope,这是什么情况？

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