我一直试图让一个超级简单的SDL程序工作.我正在使用Mac OS X Lion.我有SDL在Snow Leopard工作,但它似乎不想在狮子身上工作.到目前为止我有这个：
#include <iostream>
#include "SDL/SDL.h"
using namespace std;
/*
#ifdef main
# undef main
#endif
*/
int main( int argc,char* args[] )
{
SDL_Surface* hello = NULL;
SDL_Surface* screen = NULL;
SDL_Init( SDL_INIT_EVERYTHING );
screen = SDL_SetVideoMode( 640,480,32,SDL_SWSURFACE );
hello = SDL_LoadBMP( "hello.bmp" );
SDL_BlitSurface( hello,NULL,screen,NULL );
SDL_Flip( screen );
SDL_Delay( 2000 );
SDL_FreeSurface( hello );
SDL_Quit();
return 0;
}
当我尝试编译此代码时(在Xcode 4.1中),它给了我这个错误：
Undefined symbols for architecture x86_64:
"_main",referenced from:
start in crt1.10.6.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)
如果我取消注释当前评论的#ifdef内容,程序将编译,但随后会在SDL_SetVideoMode行上接收SIGABRT.我刚才在另一个程序中看到了这些注释的东西,我不确定我是否应该拥有它.
我怎么能让这个工作？
