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Chapter 6: How to Use Variables 73

6.14 Other Special Variables

GNU make supports some variables that have special properties.

MAKEFILE_LIST

Contains the name of each makeﬁle that is parsed by make, in the order in

which it was parsed. The name is appended just before make begins to parse

the makeﬁle. Thus, if the ﬁrst thing a makeﬁle does is examine the last word

in this variable, it will be the name of the current makeﬁle. Once the current

makeﬁle has used include, however, the last word will be the just-included

makeﬁle.

If a makeﬁle named Makefile has this content:

name1 := $(lastword $(MAKEFILE_LIST))

include inc.mk

name2 := $(lastword $(MAKEFILE_LIST))

all:

@echo name1 = $(name1)

@echo name2 = $(name2)

then you would expect to see this output:

name1 = Makefile

name2 = inc.mk

.DEFAULT_GOAL

Sets the default goal to be used if no targets were speciﬁed on the command line

(see Section 9.2 [Arguments to Specify the Goals], page 99). The .DEFAULT_

GOAL variable allows you to discover the current default goal, restart the default

goal selection algorithm by clearing its value, or to explicitly set the default goal.

The following example illustrates these cases:

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