[Dev-C++] problem with conio.h

[faramarz y. <far...@ho...>]

simply writing this :

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
  clrscr();
  gotoxy(10,10);
  system("PAUSE");
  return 0;
}

there is no compiler error but linker made this errors :

:conio.cpp: undefined reference to `clrscr'
conio.cpp: undefined reference to `gotoxy'

i have this problem only with conio.h.
i check conio.h & find the prototype of these functions in cinio is 
availble.
what should i do to solve it?
thank u in advanced

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