make/tests/scripts/features/order_only

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# -*-perl-*-
$description = "Test order-only prerequisites.";
$details = "\
Create makefiles with various combinations of normal and order-only
prerequisites and ensure they behave properly. Test the \$| variable.";
open(MAKEFILE,"> $makefile");
print MAKEFILE <<'EOF';
foo: bar | baz
@echo '$$^ = $^'
@echo '$$? = $?'
@echo '$$| = $|'
touch $@
.PHONY: baz
bar baz:
touch $@
EOF
close(MAKEFILE);
# TEST #1 -- just the syntax
&run_make_with_options($makefile, "", &get_logfile);
$answer = "touch bar\ntouch baz\n\$^ = bar\n\$? = bar\n\$| = baz\ntouch foo\n";
&compare_output($answer,&get_logfile(1));
# TEST #2 -- now we do it again: baz is PHONY but foo should _NOT_ be updated
&run_make_with_options($makefile, "", &get_logfile);
$answer = "touch baz\n";
&compare_output($answer,&get_logfile(1));
unlink(qw(foo bar baz));
# Test prereqs that are both order and non-order
$makefile2 = &get_tmpfile;
open(MAKEFILE,"> $makefile2");
print MAKEFILE <<'EOF';
foo: bar | baz
@echo '$$^ = $^'
@echo '$$? = $?'
@echo '$$| = $|'
touch $@
foo: baz
.PHONY: baz
bar baz:
touch $@
EOF
close(MAKEFILE);
# TEST #3 -- just the syntax
&run_make_with_options($makefile2, "", &get_logfile);
$answer = "touch bar\ntouch baz\n\$^ = bar baz\n\$? = bar baz\n\$| = baz\ntouch foo\n";
&compare_output($answer,&get_logfile(1));
# TEST #2 -- now we do it again: baz is PHONY but foo should _NOT_ be updated
&run_make_with_options($makefile2, "", &get_logfile);
$answer = "touch baz\$^ = bar baz\n\$? = baz\n\$| = baz\ntouch foo\n";
&compare_output($answer,&get_logfile(1));
unlink(qw(foo bar baz));
1;