--- includes/gnutls/extra.h.orig	2005-01-23 01:21:45.000000000 +0930
+++ includes/gnutls/extra.h	2005-02-06 18:14:24.126519048 +0930
@@ -33,6 +33,10 @@
 
 #define LIBGNUTLS_EXTRA_VERSION LIBGNUTLS_VERSION
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Openpgp certificate stuff 
  */
 
@@ -81,4 +85,8 @@
  */
 const char* gnutls_extra_check_version( const char *req_version);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif