From: Bernhard Walle <bernhard@bwalle.de>
Subject: Fix build with OpenSSL 1.x

See http://lists.manyfish.co.uk/pipermail/neon-commits/2009-September/000827.html.

Signed-off-by: Bernhard Walle <bernhard@bwalle.de>
---
 lib/neon/ne_openssl.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

--- a/lib/neon/ne_openssl.c
+++ b/lib/neon/ne_openssl.c
@@ -36,6 +36,7 @@
 #include <openssl/pkcs12.h>
 #include <openssl/x509v3.h>
 #include <openssl/rand.h>
+#include <openssl/opensslv.h>
 
 #ifdef NE_HAVE_TS_SSL
 #include <stdlib.h> /* for abort() */
@@ -615,6 +616,15 @@ void ne_ssl_context_destroy(ne_ssl_conte
     ne_free(ctx);
 }
 
+/* OpenSSL 1.0 removed SSL_SESSION_cmp for no apparent reason - hoping
+ * it is reasonable to assume that comparing the session IDs is
+ * sufficient. */
+static int SSL_SESSION_cmp(SSL_SESSION *a, SSL_SESSION *b)
+{
+    return a->session_id_length == b->session_id_length
+        && memcmp(a->session_id, b->session_id, a->session_id_length) == 0;
+}
+
 /* For internal use only. */
 int ne__negotiate_ssl(ne_session *sess)
 {