From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sun, 16 Oct 2022 02:04:59 +0200
Subject: Fix non-Linux builds

Some features are Linux-only.

diff --git a/networking/traceroute.c b/networking/traceroute.c
index 4bbe1ab8e..2ba990fd0 100644
--- a/networking/traceroute.c
+++ b/networking/traceroute.c
@@ -963,8 +963,10 @@ traceroute_init(int op, char **argv)
 	if (af == AF_INET) {
 		xmove_fd(xsocket(AF_INET, SOCK_RAW, IPPROTO_ICMP), rcvsock);
 #if ENABLE_FEATURE_TRACEROUTE_VERBOSE
+# ifdef IP_PKTINFO
 		/* want recvmsg to report target local address (for -v) */
 		setsockopt_1(rcvsock, IPPROTO_IP, IP_PKTINFO);
+# endif
 #endif
 	}
 #if ENABLE_TRACEROUTE6