diff --git a/src/patches/net-snmp-5.7.3-openssl.patch b/src/patches/net-snmp-5.7.3-openssl.patch
deleted file mode 100644
index 0651a24ec..000000000
--- a/src/patches/net-snmp-5.7.3-openssl.patch
+++ /dev/null
@@ -1,303 +0,0 @@
-diff -urNp old/apps/snmpusm.c new/apps/snmpusm.c
---- old/apps/snmpusm.c	2014-12-08 21:23:22.000000000 +0100
-+++ new/apps/snmpusm.c	2017-02-20 15:20:36.994022905 +0100
-@@ -190,7 +190,7 @@ get_USM_DH_key(netsnmp_variable_list *va
-                oid *keyoid, size_t keyoid_len) {
-     u_char *dhkeychange;
-     DH *dh;
--    BIGNUM *other_pub;
-+    BIGNUM *p, *g, *pub_key, *other_pub;
-     u_char *key;
-     size_t key_len;
-             
-@@ -205,25 +205,29 @@ get_USM_DH_key(netsnmp_variable_list *va
-         dh = d2i_DHparams(NULL, &cp, dhvar->val_len);
-     }
- 
--    if (!dh || !dh->g || !dh->p) {
-+    if (dh)
-+        DH_get0_pqg(dh, &p, NULL, &g);
-+	
-+    if (!dh || !g || !p) {
-         SNMP_FREE(dhkeychange);
-         return SNMPERR_GENERR;
-     }
- 
--    DH_generate_key(dh);
--    if (!dh->pub_key) {
-+    if (!DH_generate_key(dh)) {
-         SNMP_FREE(dhkeychange);
-         return SNMPERR_GENERR;
-     }
-             
--    if (vars->val_len != (unsigned int)BN_num_bytes(dh->pub_key)) {
-+    DH_get0_key(dh, &pub_key, NULL);
-+
-+    if (vars->val_len != (unsigned int)BN_num_bytes(pub_key)) {
-         SNMP_FREE(dhkeychange);
-         fprintf(stderr,"incorrect diffie-helman lengths (%lu != %d)\n",
--                (unsigned long)vars->val_len, BN_num_bytes(dh->pub_key));
-+                (unsigned long)vars->val_len, BN_num_bytes(pub_key));
-         return SNMPERR_GENERR;
-     }
- 
--    BN_bn2bin(dh->pub_key, dhkeychange + vars->val_len);
-+    BN_bn2bin(pub_key, dhkeychange + vars->val_len);
- 
-     key_len = DH_size(dh);
-     if (!key_len) {
-diff -urNp old/configure new/configure
---- old/configure	2017-02-20 10:08:16.440396223 +0100
-+++ new/configure	2017-02-20 10:57:15.749734281 +0100
-@@ -23176,9 +23176,9 @@ $as_echo "#define HAVE_AES_CFB128_ENCRYP
- fi
- 
- 
--            as_ac_Lib=`$as_echo "ac_cv_lib_${CRYPTO}''_EVP_MD_CTX_create" | $as_tr_sh`
--{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for EVP_MD_CTX_create in -l${CRYPTO}" >&5
--$as_echo_n "checking for EVP_MD_CTX_create in -l${CRYPTO}... " >&6; }
-+            as_ac_Lib=`$as_echo "ac_cv_lib_${CRYPTO}''_EVP_MD_CTX_new" | $as_tr_sh`
-+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for EVP_MD_CTX_new in -l${CRYPTO}" >&5
-+$as_echo_n "checking for EVP_MD_CTX_new in -l${CRYPTO}... " >&6; }
- if eval \${$as_ac_Lib+:} false; then :
-   $as_echo_n "(cached) " >&6
- else
-@@ -23193,11 +23193,11 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_
- #ifdef __cplusplus
- extern "C"
- #endif
--char EVP_MD_CTX_create ();
-+char EVP_MD_CTX_new ();
- int
- main ()
- {
--return EVP_MD_CTX_create ();
-+return EVP_MD_CTX_new ();
-   ;
-   return 0;
- }
-@@ -23216,10 +23216,10 @@ eval ac_res=\$$as_ac_Lib
- $as_echo "$ac_res" >&6; }
- if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
- 
--$as_echo "#define HAVE_EVP_MD_CTX_CREATE /**/" >>confdefs.h
-+$as_echo "#define HAVE_EVP_MD_CTX_NEW /**/" >>confdefs.h
- 
- 
--$as_echo "#define HAVE_EVP_MD_CTX_DESTROY /**/" >>confdefs.h
-+$as_echo "#define HAVE_EVP_MD_CTX_FREE /**/" >>confdefs.h
- 
- fi
- 
-@@ -23293,7 +23293,7 @@ char SSL_library_init ();
- int
- main ()
- {
--return SSL_library_init ();
-+return OPENSSL_init_ssl(0, NULL);
-   ;
-   return 0;
- }
-diff -urNp old/configure.d/config_os_libs2 new/configure.d/config_os_libs2
---- old/configure.d/config_os_libs2	2014-12-08 21:23:22.000000000 +0100
-+++ new/configure.d/config_os_libs2	2017-02-20 10:56:21.041616611 +0100
-@@ -292,11 +292,11 @@ if test "x$tryopenssl" != "xno" -a "x$tr
-                 AC_DEFINE(HAVE_AES_CFB128_ENCRYPT, 1,
-                     [Define to 1 if you have the `AES_cfb128_encrypt' function.]))
- 
--            AC_CHECK_LIB(${CRYPTO}, EVP_MD_CTX_create,
--                AC_DEFINE([HAVE_EVP_MD_CTX_CREATE], [],
--                    [Define to 1 if you have the `EVP_MD_CTX_create' function.])
--                AC_DEFINE([HAVE_EVP_MD_CTX_DESTROY], [],
--                    [Define to 1 if you have the `EVP_MD_CTX_destroy' function.]))
-+            AC_CHECK_LIB(${CRYPTO}, EVP_MD_CTX_new,
-+                AC_DEFINE([HAVE_EVP_MD_CTX_NEW], [],
-+                    [Define to 1 if you have the `EVP_MD_CTX_new' function.])
-+                AC_DEFINE([HAVE_EVP_MD_CTX_FREE], [],
-+                    [Define to 1 if you have the `EVP_MD_CTX_free' function.]))
-         fi
-         if echo " $transport_result_list " | $GREP "DTLS" > /dev/null; then
- 	    AC_CHECK_LIB(ssl, DTLSv1_method,
-@@ -307,7 +307,7 @@ if test "x$tryopenssl" != "xno" -a "x$tr
-             TLSPROG=yes
-         fi
-         if echo " $transport_result_list " | $GREP "TLS" > /dev/null; then
--	    AC_CHECK_LIB(ssl, SSL_library_init,
-+	    AC_CHECK_LIB(ssl, OPENSSL_init_ssl,
-                 AC_DEFINE(HAVE_LIBSSL, 1,
-                     [Define to 1 if you have the `ssl' library (-lssl).])
-                 LIBCRYPTO=" -lssl $LIBCRYPTO",	
-diff -urNp old/include/net-snmp/net-snmp-config.h.in new/include/net-snmp/net-snmp-config.h.in
---- old/include/net-snmp/net-snmp-config.h.in	2017-02-20 10:08:16.443522417 +0100
-+++ new/include/net-snmp/net-snmp-config.h.in	2017-02-20 10:24:05.790584283 +0100
-@@ -149,11 +149,11 @@
- /* Define to 1 if you have the `eval_pv' function. */
- #undef HAVE_EVAL_PV
- 
--/* Define to 1 if you have the `EVP_MD_CTX_create' function. */
--#undef HAVE_EVP_MD_CTX_CREATE
-+/* Define to 1 if you have the `EVP_MD_CTX_new' function. */
-+#undef HAVE_EVP_MD_CTX_NEW
- 
--/* Define to 1 if you have the `EVP_MD_CTX_destroy' function. */
--#undef HAVE_EVP_MD_CTX_DESTROY
-+/* Define to 1 if you have the `EVP_MD_CTX_free' function. */
-+#undef HAVE_EVP_MD_CTX_FREE
- 
- /* Define if you have EVP_sha224/256 in openssl */
- #undef HAVE_EVP_SHA224
-diff -urNp old/snmplib/keytools.c new/snmplib/keytools.c
---- old/snmplib/keytools.c	2014-12-08 21:23:22.000000000 +0100
-+++ new/snmplib/keytools.c	2017-02-20 10:30:27.412068264 +0100
-@@ -149,8 +149,8 @@ generate_Ku(const oid * hashtype, u_int
-      */
- #ifdef NETSNMP_USE_OPENSSL
- 
--#ifdef HAVE_EVP_MD_CTX_CREATE
--    ctx = EVP_MD_CTX_create();
-+#ifdef HAVE_EVP_MD_CTX_NEW
-+    ctx = EVP_MD_CTX_new();
- #else
-     ctx = malloc(sizeof(*ctx));
-     if (!EVP_MD_CTX_init(ctx))
-@@ -259,8 +259,8 @@ generate_Ku(const oid * hashtype, u_int
-     memset(buf, 0, sizeof(buf));
- #ifdef NETSNMP_USE_OPENSSL
-     if (ctx) {
--#ifdef HAVE_EVP_MD_CTX_DESTROY
--        EVP_MD_CTX_destroy(ctx);
-+#ifdef HAVE_EVP_MD_CTX_FREE
-+        EVP_MD_CTX_free(ctx);
- #else
-         EVP_MD_CTX_cleanup(ctx);
-         free(ctx);
-diff -urNp old/snmplib/scapi.c new/snmplib/scapi.c
---- old/snmplib/scapi.c	2014-12-08 21:23:22.000000000 +0100
-+++ new/snmplib/scapi.c	2017-02-20 10:27:34.152379515 +0100
-@@ -486,14 +486,14 @@ sc_hash(const oid * hashtype, size_t has
-     }
- 
- /** initialize the pointer */
--#ifdef HAVE_EVP_MD_CTX_CREATE
--    cptr = EVP_MD_CTX_create();
-+#ifdef HAVE_EVP_MD_CTX_NEW
-+    cptr = EVP_MD_CTX_new();
- #else
-     cptr = malloc(sizeof(*cptr));
- #if defined(OLD_DES)
-     memset(cptr, 0, sizeof(*cptr));
- #else
--    EVP_MD_CTX_init(cptr);
-+    EVP_MD_CTX_init(&cptr);
- #endif
- #endif
-     if (!EVP_DigestInit(cptr, hashfn)) {
-@@ -507,11 +507,11 @@ sc_hash(const oid * hashtype, size_t has
- /** do the final pass */
-     EVP_DigestFinal(cptr, MAC, &tmp_len);
-     *MAC_len = tmp_len;
--#ifdef HAVE_EVP_MD_CTX_DESTROY
--    EVP_MD_CTX_destroy(cptr);
-+#ifdef HAVE_EVP_MD_CTX_FREE
-+    EVP_MD_CTX_free(cptr);
- #else
- #if !defined(OLD_DES)
--    EVP_MD_CTX_cleanup(cptr);
-+    EVP_MD_CTX_cleanup(&cptr);
- #endif
-     free(cptr);
- #endif
-diff -urNp old/snmplib/snmp_openssl.c new/snmplib/snmp_openssl.c
---- old/snmplib/snmp_openssl.c	2014-12-08 21:23:22.000000000 +0100
-+++ new/snmplib/snmp_openssl.c	2017-02-20 12:46:00.059727928 +0100
-@@ -47,7 +47,7 @@ void netsnmp_init_openssl(void) {
-     DEBUGMSGTL(("snmp_openssl", "initializing\n"));
- 
-     /* Initializing OpenSSL */
--    SSL_library_init();
-+    OPENSSL_init_ssl(0, NULL);
-     SSL_load_error_strings();
-     ERR_load_BIO_strings();
-     OpenSSL_add_all_algorithms();
-@@ -164,11 +164,11 @@ netsnmp_openssl_cert_dump_names(X509 *oc
-         oname_entry = X509_NAME_get_entry(osubj_name, i);
-         netsnmp_assert(NULL != oname_entry);
- 
--        if (oname_entry->value->type != V_ASN1_PRINTABLESTRING)
-+        if (X509_NAME_ENTRY_get_data(oname_entry)->type != V_ASN1_PRINTABLESTRING)
-             continue;
- 
-         /** get NID */
--        onid = OBJ_obj2nid(oname_entry->object);
-+        onid = OBJ_obj2nid(X509_NAME_ENTRY_get_object(oname_entry));
-         if (onid == NID_undef) {
-             prefix_long = prefix_short = "UNKNOWN";
-         }
-@@ -179,9 +179,9 @@ netsnmp_openssl_cert_dump_names(X509 *oc
- 
-         DEBUGMSGT(("9:cert:dump:names",
-                    "[%02d] NID type %d, ASN type %d\n", i, onid,
--                   oname_entry->value->type));
-+                   X509_NAME_ENTRY_get_data(oname_entry)->type));
-         DEBUGMSGT(("9:cert:dump:names", "%s/%s: '%s'\n", prefix_long,
--                   prefix_short, ASN1_STRING_data(oname_entry->value)));
-+                   prefix_short, ASN1_STRING_data(X509_NAME_ENTRY_get_data(oname_entry))));
-     }
- }
- #endif /* NETSNMP_FEATURE_REMOVE_CERT_DUMP_NAMES */
-@@ -470,7 +470,7 @@ netsnmp_openssl_cert_get_hash_type(X509
-     if (NULL == ocert)
-         return 0;
- 
--    return _nid2ht(OBJ_obj2nid(ocert->sig_alg->algorithm));
-+    return _nid2ht(X509_get_signature_nid(ocert));
- }
- 
- /**
-@@ -487,7 +487,7 @@ netsnmp_openssl_cert_get_fingerprint(X50
-     if (NULL == ocert)
-         return NULL;
- 
--    nid = OBJ_obj2nid(ocert->sig_alg->algorithm);
-+    nid = X509_get_signature_nid(ocert);
-     DEBUGMSGT(("9:openssl:fingerprint", "alg %d, cert nid %d (%d)\n", alg, nid,
-                _nid2ht(nid)));
-         
-diff -urNp old/win32/net-snmp/net-snmp-config.h new/win32/net-snmp/net-snmp-config.h
---- old/win32/net-snmp/net-snmp-config.h	2014-12-08 21:23:22.000000000 +0100
-+++ new/win32/net-snmp/net-snmp-config.h	2017-02-20 10:23:20.796778512 +0100
-@@ -1366,11 +1366,11 @@
- /* Define to 1 if you have the <openssl/aes.h> header file. */
- #define HAVE_OPENSSL_AES_H 1
- 
--/* Define to 1 if you have the `EVP_MD_CTX_create' function. */
--#define HAVE_EVP_MD_CTX_CREATE 1
-+/* Define to 1 if you have the `EVP_MD_CTX_new' function. */
-+#define HAVE_EVP_MD_CTX_NEW 1
- 
--/* Define to 1 if you have the `EVP_MD_CTX_destroy' function. */
--#define HAVE_EVP_MD_CTX_DESTROY 1
-+/* Define to 1 if you have the `EVP_MD_CTX_free' function. */
-+#define HAVE_EVP_MD_CTX_FREE 1
- 
- /* Define to 1 if you have the `AES_cfb128_encrypt' function. */
- #define HAVE_AES_CFB128_ENCRYPT 1
-diff -urNp old/win32/net-snmp/net-snmp-config.h.in new/win32/net-snmp/net-snmp-config.h.in
---- old/win32/net-snmp/net-snmp-config.h.in	2014-12-08 21:23:22.000000000 +0100
-+++ new/win32/net-snmp/net-snmp-config.h.in	2017-02-20 10:22:51.348367754 +0100
-@@ -1366,11 +1366,11 @@
- /* Define to 1 if you have the <openssl/aes.h> header file. */
- #define HAVE_OPENSSL_AES_H 1
- 
--/* Define to 1 if you have the `EVP_MD_CTX_create' function. */
--#define HAVE_EVP_MD_CTX_CREATE 1
-+/* Define to 1 if you have the `EVP_MD_CTX_new' function. */
-+#define HAVE_EVP_MD_CTX_NEW 1
- 
--/* Define to 1 if you have the `EVP_MD_CTX_destroy' function. */
--#define HAVE_EVP_MD_CTX_DESTROY 1
-+/* Define to 1 if you have the `EVP_MD_CTX_free' function. */
-+#define HAVE_EVP_MD_CTX_FREE 1
- 
- /* Define to 1 if you have the `AES_cfb128_encrypt' function. */
- #define HAVE_AES_CFB128_ENCRYPT 1
