1 #include <pthread.h> 2 #include <unistd.h> 3 #include <stdlib.h> 4 #include <stdio.h> 5 6 int 7 main(void) 8 { 9 ulong x; 10 11 x = (ulong)pthread_self(); 12 printf("%lx\n", x); 13 if(x < 1024*1024) 14 exit(1); /* NOT NPTL */ 15 exit(0); 16 }