Backported from 8.0 for 7.2 by Remi


From f9fd3595ecb36c8dc6add0515782a18f15216d77 Mon Sep 17 00:00:00 2001
From: Remi Collet <remi@remirepo.net>
Date: Thu, 27 May 2021 14:20:07 +0200
Subject: [PATCH] Fix snmp build without DES

---
 ext/snmp/snmp.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/ext/snmp/snmp.c b/ext/snmp/snmp.c
index 35d19c8738828..d31995827880d 100644
--- a/ext/snmp/snmp.c
+++ b/ext/snmp/snmp.c
@@ -1228,15 +1228,19 @@ static int netsnmp_session_set_auth_prot
    Set the security protocol in the snmpv3 session */
 static int netsnmp_session_set_sec_protocol(struct snmp_session *s, char *prot)
 {
+#ifndef NETSNMP_DISABLE_DES
 	if (!strcasecmp(prot, "DES")) {
 		s->securityPrivProto = usmDESPrivProtocol;
 		s->securityPrivProtoLen = USM_PRIV_PROTO_DES_LEN;
+	} else
+#endif
 #ifdef HAVE_AES
-	} else if (!strcasecmp(prot, "AES128") || !strcasecmp(prot, "AES")) {
+	if (!strcasecmp(prot, "AES128") || !strcasecmp(prot, "AES")) {
 		s->securityPrivProto = usmAESPrivProtocol;
 		s->securityPrivProtoLen = USM_PRIV_PROTO_AES_LEN;
+	} else
 #endif
-	} else {
+	{
 		php_error_docref(NULL, E_WARNING, "Unknown security protocol '%s'", prot);
 		return (-1);
 	}