# TODO(go): Fix MAKEVER:=$(shell make --version | ruby -n0e 'puts $$_[/Make (\d)/,1]') files = $(wildcard M*) $(shell mkdir -p tmp) files += $(wildcard tmp/../M*) files += $(wildcard not_exist/../M*) files += $(wildcard tmp/../M* not_exist/../M* tmp/../M*) # GNU make 4 does not sort the result of $(wildcard) ifeq ($(MAKEVER),3) files += $(wildcard [ABC] C B A) endif test1: touch A C B test2: echo $(files)