1
2hello=file
3al%: hello+=one
4all: hello+=two
5export hello
6$(info $(shell echo $$hello))
7all:; $(info $(shell echo $$hello))
1
2hello=file
3al%: hello+=one
4all: hello+=two
5export hello
6$(info $(shell echo $$hello))
7all:; $(info $(shell echo $$hello))