Index: neon/src/ne_openssl.c
--- neon/src/ne_openssl.c.orig	2010-01-20 21:40:56.000000000 +0100
+++ neon/src/ne_openssl.c	2010-04-03 21:05:23.000000000 +0200
@@ -604,6 +604,17 @@
     ne_free(ctx);
 }
 
+#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER > 0x10000000L
+/* 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;
+}
+#endif
+
 /* For internal use only. */
 int ne__negotiate_ssl(ne_session *sess)
 {