| 1 | --- a/ping6.c |
| 2 | +++ b/ping6.c |
| 3 | @@ -66,6 +66,8 @@ char copyright[] = |
| 4 | * More statistics could always be gathered. |
| 5 | * This program has to run SUID to ROOT to access the ICMP socket. |
| 6 | */ |
| 7 | + |
| 8 | +#define _GNU_SOURCE |
| 9 | #include "ping_common.h" |
| 10 | |
| 11 | #include <linux/filter.h> |
| 12 | |
