[PATCH 4/6] configure: Add a test for SO_BINDTODEVICE

---
 configure                             | 34 +++++++++++++++++++++++++++
 configure.d/config_os_misc4           | 15 ++++++++++++
 include/net-snmp/net-snmp-config.h.in |  3 +++
 3 files changed, 52 insertions(+)

diff --git a/configure b/configure
index 282631f4266e..fe05c50374f0 100755
--- a/configure
+++ b/configure
@@ -31462,6 +31462,40 @@ And this can be very slow." >&2;}
     ;;
 esac
 
+#   Check whether SO_BINDTODEVICE is available.
+#
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SO_BINDTODEVICE" >&5
+$as_echo_n "checking for SO_BINDTODEVICE... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+int
+main ()
+{
+
+return SO_BINDTODEVICE
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+$as_echo "#define HAVE_SO_BINDTODEVICE 1" >>confdefs.h
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
 #   Check whether struct in_pktinfo.ipi_spec_dst is available.
 #
 
diff --git a/configure.d/config_os_misc4 b/configure.d/config_os_misc4
index 2899bb8adb98..9a4542274d14 100644
--- a/configure.d/config_os_misc4
+++ b/configure.d/config_os_misc4
@@ -318,6 +318,21 @@ And this can be very slow.])
     ;;
 esac
 
+#   Check whether SO_BINDTODEVICE is available.
+#
+
+AC_MSG_CHECKING([for SO_BINDTODEVICE])
+AC_LINK_IFELSE([AC_LANG_PROGRAM([
+#include <sys/types.h>
+#include <sys/socket.h>
+], [
+return SO_BINDTODEVICE
+])],
+[AC_DEFINE([HAVE_SO_BINDTODEVICE], [1],
+  [Define to 1 if SO_BINDTODEVICE is available])
+ AC_MSG_RESULT([yes])],
+[AC_MSG_RESULT([no])])
+
 #   Check whether struct in_pktinfo.ipi_spec_dst is available.
 #
 
diff --git a/include/net-snmp/net-snmp-config.h.in b/include/net-snmp/net-snmp-config.h.in
index e34af9f7e6e2..90e005d53f51 100644
--- a/include/net-snmp/net-snmp-config.h.in
+++ b/include/net-snmp/net-snmp-config.h.in
@@ -831,6 +831,9 @@
 /* Define to 1 if the system has the type `socklen_t'. */
 #undef HAVE_SOCKLEN_T
 
+/* Define to 1 if SO_BINDTODEVICE is available */
+#undef HAVE_SO_BINDTODEVICE
+
 /* Define to 1 if you have the `srand' function. */
 #undef HAVE_SRAND
 
-- 
2.19.1