#include "mex.h"
int myglob;

void mexFunction( int nlhs, mxArray *plhs[],
                  int nrhs, const mxArray *prhs[] )
{
  int* globpr;
  myglob = 315159;
  globpr = &myglob;

  printf("myglobpr = %d \n",(int) globpr);

}