diff --git a/src/add-ons/kernel/file_systems/iso9660/Jamfile b/src/add-ons/kernel/file_systems/iso9660/Jamfile
index 5fc4b0fe8b..845837f1f3 100644
--- a/src/add-ons/kernel/file_systems/iso9660/Jamfile
+++ b/src/add-ons/kernel/file_systems/iso9660/Jamfile
@@ -9,9 +9,9 @@ oldOPTIM = $(OPTIM) ;
 		KEEP_WRONG_DIRENT_RECLEN
 		;
 
-	if $(COMPILE_FOR_R5) {
+#	if $(COMPILE_FOR_R5) {
 		defines += COMPILE_FOR_R5 ;
-	}
+#	}
 
 	if $(DEBUG) = 0 {
 		# the gcc on BeOS doesn't compile BFS correctly with -O2 or more
diff --git a/src/add-ons/kernel/file_systems/iso9660/fsproto.h b/src/add-ons/kernel/file_systems/iso9660/fsproto.h
index 6cf6c66cdd..000809c3bc 100644
--- a/src/add-ons/kernel/file_systems/iso9660/fsproto.h
+++ b/src/add-ons/kernel/file_systems/iso9660/fsproto.h
@@ -221,7 +221,6 @@ extern _IMPEXP_KERNEL void	free_path(char *p);
 extern _IMPEXP_KERNEL int	notify_listener(int op, nspace_id nsid,
 									vnode_id vnida,	vnode_id vnidb,
 									vnode_id vnidc, const char *name);
-extern _IMPEXP_KERNEL void	notify_select_event(selectsync *sync, uint32 ref);
 extern _IMPEXP_KERNEL int	send_notification(port_id port, long token,
 									ulong what, long op, nspace_id nsida,
 									nspace_id nsidb, vnode_id vnida,