1files = $(wildcard *,*)
2
3# test expectes empty, since no *,* found.
4test:
5 echo $(files)
6 touch foo,bar
7
8# when foo,bar doesn't exit, "make test2" report empty.
9# next "make test2" reports "foo,bar".
10test2: foo,bar
11 echo $(files)
12
13foo,bar:
14 touch foo,bar
15