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#                                                                    -*-perl-*-
$description = "Test handling of double-colon rules.";

$details = "\
We test these features:

  - Multiple commands for the same (double-colon) target
  - Different prerequisites for targets: only out-of-date
    ones are rebuilt.
  - Double-colon targets that aren't the goal target.

Then we do the same thing for parallel builds: double-colon
targets should always be built serially.";

# The Contents of the MAKEFILE ...

open(MAKEFILE,"> $makefile");

print MAKEFILE <<'EOF';

all: baz

foo:: f1.h ; @echo foo FIRST
foo:: f2.h ; @echo foo SECOND

bar:: ; @echo aaa; sleep 1; echo aaa done
bar:: ; @echo bbb

baz:: ; @echo aaa
baz:: ; @echo bbb

biz:: ; @echo aaa
biz:: two ; @echo bbb

two: ; @echo two

f1.h f2.h: ; @echo $@

d :: ; @echo ok
d :: d ; @echo oops

EOF

close(MAKEFILE);

# TEST 0: A simple double-colon rule that isn't the goal target.

&run_make_with_options($makefile, "all", &get_logfile, 0);
$answer = "aaa\nbbb\n";
&compare_output($answer, &get_logfile(1));

# TEST 1: As above, in parallel

if ($parallel_jobs) {
  &run_make_with_options($makefile, "-j10 all", &get_logfile, 0);
  $answer = "aaa\nbbb\n";
  &compare_output($answer, &get_logfile(1));
}

# TEST 2: A simple double-colon rule that is the goal target

&run_make_with_options($makefile, "bar", &get_logfile, 0);
$answer = "aaa\naaa done\nbbb\n";
&compare_output($answer, &get_logfile(1));

# TEST 3: As above, in parallel

if ($parallel_jobs) {
  &run_make_with_options($makefile, "-j10 bar", &get_logfile, 0);
  $answer = "aaa\naaa done\nbbb\n";
  &compare_output($answer, &get_logfile(1));
}

# TEST 4: Each double-colon rule is supposed to be run individually

&utouch(-5, 'f2.h');
&touch('foo');

&run_make_with_options($makefile, "foo", &get_logfile, 0);
$answer = "f1.h\nfoo FIRST\n";
&compare_output($answer, &get_logfile(1));

# TEST 5: Again, in parallel.

if ($parallel_jobs) {
  &run_make_with_options($makefile, "-j10 foo", &get_logfile, 0);
  $answer = "f1.h\nfoo FIRST\n";
  &compare_output($answer, &get_logfile(1));
}

# TEST 6: Each double-colon rule is supposed to be run individually

&utouch(-5, 'f1.h');
unlink('f2.h');
&touch('foo');

&run_make_with_options($makefile, "foo", &get_logfile, 0);
$answer = "f2.h\nfoo SECOND\n";
&compare_output($answer, &get_logfile(1));

# TEST 7: Again, in parallel.

if ($parallel_jobs) {
  &run_make_with_options($makefile, "-j10 foo", &get_logfile, 0);
  $answer = "f2.h\nfoo SECOND\n";
  &compare_output($answer, &get_logfile(1));
}

# TEST 8: Test circular dependency check; PR/1671

&run_make_with_options($makefile, "d", &get_logfile, 0);
$answer = "ok\n$make_name: Circular d <- d dependency dropped.\noops\n";
&compare_output($answer, &get_logfile(1));

# TEST 8: I don't grok why this is different than the above, but it is...
#
# Hmm... further testing indicates this might be timing-dependent?
#
#if ($parallel_jobs) {
#  &run_make_with_options($makefile, "-j10 biz", &get_logfile, 0);
#  $answer = "aaa\ntwo\nbbb\n";
#  &compare_output($answer, &get_logfile(1));
#}

unlink('foo','f1.h','f2.h');


# TEST 9: make sure all rules in s double colon family get executed
#         (Savannah bug #14334).
#

&touch('one');
&touch('two');

run_make_test('
.PHONY: all
all: result

result:: one
	@echo $^ >>$@
	@echo $^

result:: two
	@echo $^ >>$@
	@echo $^

',
'',
'one
two');

unlink('result','one','two');

# TEST 10: check for proper backslash handling
#          Savannah bug #33399

run_make_test('
a\ xb :: ; @echo one
a\ xb :: ; @echo two
',
              '', "one\ntwo\n");

# This tells the test driver that the perl test script executed properly.
1;