--- a/libidav/session.h	Sat Mar 19 18:49:36 2016 +0100
+++ b/libidav/session.h	Sun Mar 20 11:27:31 2016 +0100
@@ -79,6 +79,7 @@
 } DavLockManager;
 
 void dav_session_set_error(DavSession *sn, CURLcode c, int status);
+void dav_session_set_errstr(DavSession *sn, const char *str);
 
 char* dav_session_create_plain_href(DavSession *sn, char *path);