Compilador: Default compiler 
Building Makefile: "H:\Vision 3\Iñaki\SDK - 2009\Virtual_Eyes\Makefile.win" 
Ejecutando make... 
make.exe -f "H:\Vision 3\Iñaki\SDK - 2009\Virtual_Eyes\Makefile.win" all 
g++.exe -c Virtual_Eyes.cpp -o Virtual_Eyes.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include" -I"C:/Dev-Cpp/include/c++/3.4.2/backward" -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32" -I"C:/Dev-Cpp/include/c++/3.4.2" -I"C:/Dev-Cpp/include" 

g++.exe Virtual_Eyes.o -o "Eye Tracker.exe" -L"C:/Dev-Cpp/lib" -lwinmm -lmingw32 -mwindows -lSDLmain -lSDL -mwindows falcon.lib C:/Dev-Cpp/lib/SDL.lib C:/Dev-Cpp/lib/SDLmain.lib 

C:/Dev-Cpp/lib\SDLmain.lib(./Release/SDL_win32_main.obj)(.text[_main]+0x0):C:\SDL-1.2.11\Src\: multiple definition of `main' 
C:/Dev-Cpp/lib/libmingw32.a(main.o)(.text+0x0):main.c: first defined here 
Warning: .drectve `/DEFAULTLIB:"MSVCRT" /DEFAULTLIB:"OLDNAMES" ' unrecognized 
C:/Dev-Cpp/lib\SDLmain.lib(./Release/SDL_win32_main.obj)(.text[_main]+0x55):C:\SDL-1.2.11\Src\: undefined reference to `_alloca_probe' 
C:/Dev-Cpp/lib\SDLmain.lib(./Release/SDL_win32_main.obj)(.text[_main]+0xcd):C:\SDL-1.2.11\Src\: undefined reference to `SDL_main' 
C:/Dev-Cpp/lib\SDLmain.lib(./Release/SDL_win32_main.obj)(.text[_WinMain@16]+0x181):C:\SDL-1.2.11\Src\: undefined reference to `_alloca_probe' 
C:/Dev-Cpp/lib\SDLmain.lib(./Release/SDL_win32_main.obj)(.text[_WinMain@16]+0x1c1):C:\SDL-1.2.11\Src\: undefined reference to `_alloca_probe' 
collect2: ld returned 1 exit status 

make.exe: *** ["Eye] Error 1 

As you can see I added the compiler linker options -lwinmm -lmingw32 -mwindows -lSDLmain -lSDL . 

Part of the code: 

#include <windows.h> 
#include "SDL/SDL.h" 
#include "falcon.h" 
#include <math.h> 

#pragma comment(lib,"SDL.lib") 
#pragma comment(lib,"SDLmain.lib") 

#define OK 1 // Operacion exitosa (encuantra todos los parametros) 
#define PURK_NO 2 // No encuentra purkinge pero si pupila 
#define NO 0 // Operacion fracasada (no encuentra nada) 
#define DATO_NO -99999 // Parametro no encontrado 


#define GRAF_NO 3 // Error en libreria grafica sdl (incompatibilidad con placa de video) 



class procesador 


................... 


Can anyone help me?

--
Iñaki Cormenzana Méndez

Computer Science Deliriums.
http://www.proxxo.com.ar