envfrompreviousrun.mk:
@echo "# do not edit" > $@
@$(foreach var,$(SAVED_VARS),echo "$(var):=$($(var))" >> $@ ;)
- @$(foreach chunk,$(ASSIGNS),echo "$(chunk)" | sed -e s,=,:=, >> $@;)
+ @$(foreach chunk,$(ASSIGNS),echo "override $(chunk)" | sed -e s,=,:=, >> $@;)
@echo "# do not edit" > aliases
@echo -n "alias m=\"make " >> aliases
@$(foreach var,$(SAVED_VARS),echo -n " $(var)=$($(var))" >> aliases ;)