echo '' > 'config.omk-default'
cat > 'Makefile.omk' <<'EOF'
$(shell echo "Top-level executed" > toplevel.mark)

SUBDIRS=subdir
EOF
mkdir subdir
cat > 'subdir/Makefile.omk' <<'EOF'
include-pass_HOOKS=include-pass-test

include-pass-test:
	echo $@ >> $(MAKERULES_DIR)/subdir.mark
EOF