[SDL] undefined reference to "WinMain@16"

#include <SDL/SDL.h>

int main(int argc, char* argv[]){
    //initialize SDL and the video subsystem
    if(SDL_Init( SDL_INIT_VIDEO ) < 0)
        return -1;
    
    //signal SDL to change the text of the main window to "SDL Hello World"
    SDL_WM_SetCaption("Hello World", "Hello World");
    
    //create an SDL_Surface object which represents the game window
    SDL_Surface* screen = SDL_SetVideoMode(640, 480, 0, 0);
    
    SDL_Surface* temp = SDL_LoadBMP("hello.bmp");
    
    SDL_Surface* bg = SDL_DisplayFormat(temp);
    
    SDL_FreeSurface(temp);
    
    SDL_Event event;
    bool quit = false;
    
    while(!quit)
    {
        if( SDL_PollEvent(&event))
        {
            switch (event.type)
            {
                   case SDL_QUIT:
                        quit = true;
                   break;
                   
                   case SDL_KEYDOWN:
                        switch(event.key.keysym.sym)
                        {
                            case SDLK_ESCAPE:
                                 quit = true;
                            break;
                        }
                   break;
            }
        }
        
        SDL_BlitSurface(bg, NULL, screen, NULL);
        
        SDL_UpdateRect(screen, 0, 0, 0, 0);
    }
    
    SDL_FreeSurface(bg);
    
    SDL_Quit();
    
    return 0;
}