for x in $$(KEEP_$(1)); do \
[ -f "$$(IDIR_$(1))/$$$$x" ] || keepfiles="$$$${keepfiles:+$$$$keepfiles }$$$$x"; \
done; \
- [ -z "$keepfiles" ] || { \
+ [ -z "$$$$keepfiles" ] || { \
mkdir -p $$(IDIR_$(1))/lib/upgrade/keep.d; \
for x in $$$$keepfiles; do echo $$$$x >> $$(IDIR_$(1))/lib/upgrade/keep.d/$(1); done; \
}; \