#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>

__pure_virtual()
{
#ifdef STOPME
  pid_t pid = getpid();
  fprintf(stderr, "pure virtual method called, process %u stopped\n",
	  (u_int)pid);

  kill(pid, SIGSTOP);
#else
  fprintf(stderr, "pure virtual method called, process aborted\n");
  abort();
#endif
}