Installing/using SDL for Qt - qt

Question

I'm trying to install the SDL library for Qt 5.1 on Windows 7, but I'm stuck. I'm a total newbie with using external libraries so please bear with me, I figured this sort of thing would be pretty basic to set up.
I downloaded the SDL-devel-1.2.15-mingw32.tar.gz (Mingw32) file, extracted it, and in my project's PRO file I added:
INCLUDEPATH += "C:\SDL\SDL-1.2.15\include\SDL"
LIBS += "C:\SDL\SDL-1.2.15\bin\SDL.dll"
Now when I try to compile this:
#include <iostream>
#include <stdlib.h>
#include "SDL.h"
using namespace std;
int main()
{
SDL_Init( SDL_INIT_EVERYTHING );
cout << "Hello World!" << endl;
return 0;
}
I get this:
crt0_c.c:-1: error: undefined reference to `WinMain#16'
collect2.exe:-1: error: error: ld returned 1 exit status

Answer 1

Compiling with SDL and g++ cannot find -lSDLmain etc
Undefined reference to WinMain#16 when using SDL
I am sure one of those is also applicable to your question.

Answer 2

SDL should be prevented from overloading main method. To do so, add the following piece of code wherever you include SDL headers.
#include <SDL/SDL.h>
#include <SDL/SDL_thread.h>
#ifdef __MINGW32__
#undef main /* Prevents SDL from overriding main() */
#endif
To make it working in your case, your project.pro file should be like this:
LIBS += -LC:\SDL-devel-1.2.15-mingw32\SDL-1.2.15\lib -llibSDL
INCLUDEPATH +=C:\SDL-devel-1.2.15-mingw32\SDL-1.2.15\include
As it is eveident from my code, I am using sdl version 1.2.15, 32-bit for mingw compiler on Windows 8.
Reference:
To find a good tutorial about the SDL ffmpeg integration, you can refer to dranger.