From 19e75743173cb8d49d49fd685b8e0249e83cc820 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 8 Sep 2021 20:39:42 -0700
Subject: [PATCH] libsnmp: Fix the build against OpenSSL 3.0

Fixes: https://github.com/net-snmp/net-snmp/issues/343

Origin: upstream, https://github.com/net-snmp/net-snmp/commit/19e75743173cb8d49d49fd685b8e0249e83cc820
Bug: https://github.com/net-snmp/net-snmp/issues/343
Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1945960
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1006511
---
 snmplib/snmp_openssl.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/snmplib/snmp_openssl.c b/snmplib/snmp_openssl.c
index c092a007a..eb4856c57 100644
--- a/snmplib/snmp_openssl.c
+++ b/snmplib/snmp_openssl.c
@@ -899,6 +899,11 @@ netsnmp_openssl_cert_issued_by(X509 *issuer, X509 *cert)
 
 
 #ifndef NETSNMP_FEATURE_REMOVE_OPENSSL_ERR_LOG
+#ifndef ERR_GET_FUNC
+/* removed in OpenSSL 3.0 */
+#define ERR_GET_FUNC(e) -1
+#endif
+
 void
 netsnmp_openssl_err_log(const char *prefix)
 {

-- 
2.32.0