bridge/mdb.c: include limits.h

While building iproute2 6.4.0 with musl using Yocto Project, errors such
as the following were encountered:

| mdb.c: In function 'mdb_parse_vni':
| mdb.c:666:47: error: 'ULONG_MAX' undeclared (first use in this function)
|   666 |         if ((endptr && *endptr) || vni_num == ULONG_MAX)
|       |                                               ^~~~~~~~~
| mdb.c:666:47: note: 'ULONG_MAX' is defined in header '<limits.h>'; did you forget to '#include <limits.h>'?

Include limits.h in bridge/mdb.c to fix this issue. This change is based
on one in Alpine Linux, but the author there had no plans to submit:

Signed-off-by: Trevor Gamblin <>
Reviewed-by: Ido Schimmel <>
Signed-off-by: Stephen Hemminger <>
1 file changed