--- smtp-tls.c	2005-12-15 13:59:49.000000000 -0500
+++ smtp-tls.c.oden	2006-11-22 08:03:45.000000000 -0500
@@ -552,7 +552,11 @@
 	  extstr = OBJ_nid2sn (OBJ_obj2nid (X509_EXTENSION_get_object (ext)));
 	  if (strcmp (extstr, "subjectAltName") == 0)
 	    {
-	      unsigned char *data;
+#if (OPENSSL_VERSION_NUMBER > 0x00908000L)
+	      const unsigned char *data;
+#else
+ 	      unsigned char *data;
+#endif
 	      STACK_OF(CONF_VALUE) *val;
 	      CONF_VALUE *nval;
 	      X509V3_EXT_METHOD *meth;