#ifdef __WATCOMC__
  #define __IBMC__ 0
  #define __IBMCPP__ 0
#endif

#define INCL_DOS
#include <os2.h>

int gettid(void)
{ 
  PTIB ptib;
  PPIB ppib;
 
  DosGetInfoBlocks(&ptib, &ppib);
 
  return (int) (ptib->tib_ptib2->tib2_ultid);
}