Segmentation Fault!??!

//I am trying to figure out why I get a segmentation fault at "*((char *) hacky_nonpointer)"
//
//This works on a 32 bit older gcc compiler on an older machine, but with gcc-4.4.3 on my
//x64 machine, I get a segmentation fault at that point. Is it my compiler??
//Also, GDB shoots an "Error accessing memory" when I do x/xw hacky_nonpointer. It does
//retain it's value though.

#include <stdio.h>

int main() {
   int i;

   char char_array[5] = {'a', 'b', 'c', 'd', 'e'};
   int int_array[5] = {1, 2, 3, 4, 5};

   unsigned int hacky_nonpointer;

   hacky_nonpointer = (unsigned int) char_array;

   for(i=0; i < 5; i++) { // Iterate through the int array with the int_pointer.
      printf("[hacky_nonpointer] points to %p, which contains the char '%c'\n",
            hacky_nonpointer, *((char *) hacky_nonpointer));
      hacky_nonpointer = hacky_nonpointer + sizeof(char);
   }
}