From a2bd14115cd20b92153e79d1a2962a0fbb74a39f Mon Sep 17 00:00:00 2001
From: Robert Vollmer <robert.vollmer@sap.com>
Date: Wed, 10 Aug 2022 11:15:55 +0200
Subject: [PATCH] Check if SO_BINDTODEVICE is defined

---
 packet/construct_unix.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/packet/construct_unix.c b/packet/construct_unix.c
index 65f0b63..e78228a 100644
--- a/packet/construct_unix.c
+++ b/packet/construct_unix.c
@@ -398,12 +398,14 @@ int set_stream_socket_options(
     }
 #endif
 
+#ifdef SO_BINDTODEVICE
     if (param->local_device) {
         if (setsockopt(stream_socket, SOL_SOCKET,
                        SO_BINDTODEVICE, param->local_device, strlen(param->local_device))) {
             return -1;
         }
     }
+#endif
 
     return 0;
 }
@@ -621,12 +623,14 @@ int construct_ip4_packet(
     }
 #endif
 
+#ifdef SO_BINDTODEVICE
     if (param->local_device) {
         if (setsockopt(send_socket, SOL_SOCKET,
                        SO_BINDTODEVICE, param->local_device, strlen(param->local_device))) {
             return -1;
         }
     }
+#endif
 
     /*
        Bind src port when not using raw socket to pass in ICMP id, kernel
@@ -796,6 +800,7 @@ int construct_ip6_packet(
     }
 #endif
 
+#ifdef SO_BINDTODEVICE
     if (param->local_device) {
         if (setsockopt(send_socket,
                        SOL_SOCKET, SO_BINDTODEVICE, param->local_device,
@@ -803,6 +808,7 @@ int construct_ip6_packet(
             return -1;
         }
     }
+#endif
 
     return 0;
 }
-- 
2.47.2