https://cgit.git.savannah.gnu.org/cgit/hurd/hurd.git/commit/?id=b36f4ea2d7b52594b4a5a19439f45de8f213539d
https://cgit.git.savannah.gnu.org/cgit/hurd/hurd.git/commit/?id=d3daa6faf08ab4141e5562cd6a69f636b869a67b

From b36f4ea2d7b52594b4a5a19439f45de8f213539d Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sun, 15 Feb 2026 01:31:41 +0100
Subject: Fix build against glibc 2.43

---
 pfinet/glue-include/linux/in.h     | 2 ++
 pfinet/glue-include/linux/socket.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/pfinet/glue-include/linux/in.h b/pfinet/glue-include/linux/in.h
index cb1804c6..594304ee 100644
--- a/pfinet/glue-include/linux/in.h
+++ b/pfinet/glue-include/linux/in.h
@@ -12,12 +12,14 @@
 #define IP_DEFAULT_MULTICAST_TTL        1
 #define IP_DEFAULT_MULTICAST_LOOP       1
 
+#ifndef IP_PKTINFO
 struct in_pktinfo
 {
 	int		ipi_ifindex;
 	struct in_addr	ipi_spec_dst;
 	struct in_addr	ipi_addr;
 };
+#endif
 
 
 /* <asm/byteorder.h> contains the htonl type stuff.. */
diff --git a/pfinet/glue-include/linux/socket.h b/pfinet/glue-include/linux/socket.h
index 90861fde..049e7684 100644
--- a/pfinet/glue-include/linux/socket.h
+++ b/pfinet/glue-include/linux/socket.h
@@ -34,7 +34,9 @@
 #define SOL_RAW IPPROTO_RAW
 
 /* IP options */
+#ifndef IP_PKTINFO
 #define IP_PKTINFO	190
+#endif
 #define IP_PKTOPTIONS	191
 #define IP_MTU_DISCOVER	192
 #define IP_RECVERR	193
-- 
cgit v1.2.3

From d3daa6faf08ab4141e5562cd6a69f636b869a67b Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sun, 15 Feb 2026 08:34:39 +0100
Subject: Fix build against glibc 2.42

---
 pfinet/glue-include/linux/in.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pfinet/glue-include/linux/in.h b/pfinet/glue-include/linux/in.h
index 594304ee..43ae630f 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;
-- 
cgit v1.2.3
