#                                                                    -*-perl-*-

$description = "Test variable undefine.";

$details = "";

# TEST 0: basic undefine functionality

run_make_test('

a = a

b := b

define c

c

endef

$(info $(flavor a) $(flavor b) $(flavor c))

n := b

undefine a

undefine $n

undefine c

$(info $(flavor a) $(flavor b) $(flavor c))

all: ;@:

',

'', "recursive simple recursive\nundefined undefined undefined");

# TEST 1: override

run_make_test('

undefine a

override undefine b

$(info $(flavor a) $(flavor b))

all: ;@:

',

'a=a b=b', "recursive undefined");

1;

# TEST 2: undefine in eval (make sure we undefine from the global var set)

run_make_test('

define undef

$(eval undefine $$1)

endef

a := a

$(call undef,a)

$(info $(flavor a))

all: ;@:

',

'', "undefined");

# TEST 3: Missing variable name

run_make_test('

a =

undefine $a

all: ;@echo ouch

',

'', "#MAKEFILE#:3: *** empty variable name.  Stop.\n", 512);

1;