Makefile

# Makefile without defining .DEFAULT_GOAL,
# Default goal is the target of the first rule.
# Query the default goal.
ifeq ($(.DEFAULT_GOAL),)
  $(warning no default goal is set)
endif

.PHONY: foo
foo: ; @echo $@
	$(warning default goal is $(.DEFAULT_GOAL))

.PHONY: bar
bar: ; @echo $@
	$(warning default goal is $(.DEFAULT_GOAL))

#S@: Gives the name of the target of the rule.

#Command:
#make

#Output:
#Makefile:5: no default goal is set
#Makefile:9: default goal is foo
#foo