commit d3daa6faf08ab4141e5562cd6a69f636b869a67b
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date:   Sun Feb 15 08:34:39 2026 +0100

    Fix build against glibc 2.42

diff --git a/pfinet/glue-include/linux/in.h b/pfinet/glue-include/linux/in.h
index 594304ee2..43ae630f2 100644
--- a/pfinet/glue-include/linux/in.h
+++ b/pfinet/glue-include/linux/in.h
@@ -2,6 +2,7 @@
 #define _HACK_IN_H_
 
 #include <netinet/in.h>
+#include <linux/socket.h>
 
 /* IP_MTU_DISCOVER values */
 #define IP_PMTUDISC_DONT		0	/* Never send DF frames */
@@ -12,7 +13,8 @@
 #define IP_DEFAULT_MULTICAST_TTL        1
 #define IP_DEFAULT_MULTICAST_LOOP       1
 
-#ifndef IP_PKTINFO
+#if IP_PKTINFO == 190
+/* Linux-like value, define Linux struct */
 struct in_pktinfo
 {
 	int		ipi_ifindex;
