if using Local_Private_Memory, let's not uselessly store the result pointer in a static variable that can get stomped on across threads

gistfile1.txt

   return sign ? -dval(&rv) : dval(&rv);
   }

#ifndef Local_Private_Memory
#ifndef MULTIPLE_THREADS
   static char *dtoa_result;
#endif
#endif

 static char *
#ifdef KR_headers
rv_alloc(KRm1 i) KRm2 int i;



-----------------------------------------------------------------------------------------

   *r = k;
   return
#ifndef Local_Private_Memory
#ifndef MULTIPLE_THREADS
     dtoa_result =
#endif
#endif
      (char *)(r+1);
   }