modulefs_DATA = obdfilter$(KMODEXT)
endif
-MOSTLYCLEANFILES = *.o *.ko *.mod.c
-DIST_SOURCES = $(obdfilter-objs:%.o=%.c) filter_io_24.c filter_io_26.c filter_internal.h
+MOSTLYCLEANFILES := @MOSTLYCLEANFILES@
+DIST_SOURCES = $(obdfilter-objs:%.o=%.c) filter_io_26.c filter_internal.h