Patches obtained from:
http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/www/dillo/patches/

$NetBSD: patch-configure,v 1.1 2018/03/24 15:40:07 ryoon Exp $

* Detect OpenSSL 1.1.0

--- configure.orig	2015-06-30 14:07:22.000000000 +0000
+++ configure
@@ -6018,11 +6018,11 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_
 #ifdef __cplusplus
 extern "C"
 #endif
-char SSL_library_init ();
+void OPENSSL_config ();
 int
 main ()
 {
-return SSL_library_init ();
+OPENSSL_config ();
   ;
   return 0;
 }
$NetBSD: patch-dpi_https.c,v 1.1 2018/03/24 15:40:07 ryoon Exp $

* Support OpenSSL 1.1.0

--- dpi/https.c.orig	2015-06-30 14:06:08.000000000 +0000
+++ dpi/https.c
@@ -476,7 +476,11 @@ static int handle_certificate_problem(SS
       case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
          /*Either self signed and untrusted*/
          /*Extract CN from certificate name information*/
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
          if ((cn = strstr(remote_cert->name, "/CN=")) == NULL) {
+#else
+         if ((cn = strstr(X509_get_subject_name(remote_cert), "/CN=")) == NULL) {
+#endif
             strcpy(buf, "(no CN given)");
          } else {
             char *cn_end;