Ignore the warning in the way to enable build with -Werror.
To be look at before 2038...
The warning was (clang 64 bits):
./pcap-netfilter-linux.c:346:12: warning: implicit conversion loses
integer precision: 'time_t' (aka 'long') to 'unsigned int'
[-Wshorten-64-to-32]
seq_id = time(NULL);
~ ^~~~~~~~~~
#endif
#include "pcap-int.h"
+#include "diag-control.h"
#ifdef NEED_STRERROR_H
#include "strerror.h"
static unsigned int seq_id;
if (!seq_id)
+DIAG_OFF_NARROWING
seq_id = time(NULL);
+DIAG_ON_NARROWING
++seq_id;
nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct nfgenmsg));