clean:
set -e ; for d in $(ALL_SUBDIRS) ; do $(MAKE) -C $$d $@ ; done
- -find . -name '*~' | xargs rm -f
- rm -f include/elf.h include/boot1_arch.h include/ld_syscalls.h include/ld_sysdep.h
+ -find . -name '*~' | xargs $(RM)
+ $(RM) include/elf.h include/boot1_arch.h include/ld_syscalls.h include/ld_sysdep.h