--- socat-1.7.3.0/xio-openssl.c	2015-01-24 15:33:42.000000000 +0100
+++ socat-1.7.3.0-ecdhe/xio-openssl.c	2015-01-25 13:38:54.353641097 +0100
@@ -960,7 +960,6 @@
       }
    }

-#if defined(EC_KEY)	/* not on Openindiana 5.11 */
    {
       /* see http://openssl.6102.n7.nabble.com/Problem-with-cipher-suite-ECDHE-ECDSA-AES256-SHA384-td42229.html */
       int	 nid;
@@ -982,7 +981,6 @@

       SSL_CTX_set_tmp_ecdh(*ctx, ecdh);
    }
-#endif /* !defined(EC_KEY) */

 #if OPENSSL_VERSION_NUMBER >= 0x00908000L
    if (opt_compress) {