-/* Only need to define VikTrack and trackname if the file type is FILE_TYPE_GPX_TRACK */
-gboolean a_file_export ( VikTrwLayer *vtl, const gchar *filename, VikFileType_t file_type, const gchar *trackname );
-const gchar *a_get_viking_dir();
+/* Only need to define VikTrack if the file type is FILE_TYPE_GPX_TRACK */
+gboolean a_file_export ( VikTrwLayer *vtl, const gchar *filename, VikFileType_t file_type, VikTrack *trk, gboolean write_hidden );