Switch from an enable to a disable flag
diff --git a/include/polarssl/ssl.h b/include/polarssl/ssl.h
index b1df138..cfd987b 100644
--- a/include/polarssl/ssl.h
+++ b/include/polarssl/ssl.h
@@ -32,6 +32,12 @@
 #else
 #include POLARSSL_CONFIG_FILE
 #endif
+
+/* Temporary compatibility trick for the current stable branch */
+#if !defined(POLARSSL_SSL_DISABLE_RENEGOTIATION)
+#define POLARSSL_SSL_RENEGOTIATION
+#endif
+
 #include "net.h"
 #include "bignum.h"
 #include "ecp.h"