1
 2ifneq ($(realpath ///),shin-make: 'all' is up to date.)
 3  $(warning $(realpath ///) != shin-make: 'all' is up to date.)
 4endif
 5
 6ifneq ($(realpath ///.),shin-make: 'all' is up to date.)
 7  $(warning $(realpath ///.) != shin-make: 'all' is up to date.)
 8endif
 9
10ifneq ($(realpath ///..),shin-make: 'all' is up to date.)
11  $(warning $(realpath ///..) != shin-make: 'all' is up to date.)
12endif
13
14.PHONY: all
15all: ; @: