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11095a90f1
I decided this feature was too impacting to make the permanent default behavior. This set of changes makes the default behavior of make the old behavior (no second expansion). If you want second expansion, you must define the .SECONDEXPANSION: special target before the first target that needs it. This set of changes ONLY fixes explicit and static pattern rules to work like this. Implicit rules still have second expansion enabled all the time: I'll work on that next. Note that there is still a backward-incompatibility: now to get the old SysV behavior using $$@ etc. in the prerequisites list you need to set .SECONDEXPANSION: as well.
119 lines
2.2 KiB
Perl
119 lines
2.2 KiB
Perl
# -*-perl-*-
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$description = "Test order-only prerequisites.";
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$details = "\
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Create makefiles with various combinations of normal and order-only
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prerequisites and ensure they behave properly. Test the \$| variable.";
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# TEST #0 -- Basics
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run_make_test('
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%r: | baz ; @echo $< $^ $|
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bar: foo
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foo:;@:
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baz:;@:',
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'', "foo foo baz\n");
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# TEST #1 -- First try: the order-only prereqs need to be built.
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run_make_test(q!
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foo: bar | baz
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@echo '$$^ = $^'
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@echo '$$| = $|'
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touch $@
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.PHONY: baz
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bar baz:
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touch $@!,
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'', "touch bar\ntouch baz\n\$^ = bar\n\$| = baz\ntouch foo\n");
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# TEST #2 -- now we do it again: baz is PHONY but foo should _NOT_ be updated
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run_make_test(undef, '', "touch baz\n");
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unlink(qw(foo bar baz));
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# TEST #3 -- Make sure the order-only prereq was promoted to normal.
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run_make_test(q!
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foo: bar | baz
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@echo '$$^ = $^'
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@echo '$$| = $|'
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touch $@
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foo: baz
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.PHONY: baz
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bar baz:
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touch $@!,
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'', "touch bar\ntouch baz\n\$^ = bar baz\n\$| = \ntouch foo\n");
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# TEST #4 -- now we do it again
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run_make_test(undef, '', "touch baz\n\$^ = bar baz\n\$| = \ntouch foo\n");
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unlink(qw(foo bar baz));
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# Test empty normal prereqs
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# TEST #5 -- make sure the parser was correct.
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run_make_test(q!
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foo:| baz
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@echo '$$^ = $^'
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@echo '$$| = $|'
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touch $@
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.PHONY: baz
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baz:
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touch $@!,
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'', "touch baz\n\$^ = \n\$| = baz\ntouch foo\n");
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# TEST #6 -- now we do it again: this time foo won't be built
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run_make_test(undef, '', "touch baz\n");
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unlink(qw(foo baz));
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# Test order-only in pattern rules
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# TEST #7 -- make sure the parser was correct.
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run_make_test(q!
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%.w : %.x | baz
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@echo '$$^ = $^'
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@echo '$$| = $|'
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touch $@
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all: foo.w
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.PHONY: baz
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foo.x baz:
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touch $@!,
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'',
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"touch foo.x\ntouch baz\n\$^ = foo.x\n\$| = baz\ntouch foo.w\n");
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# TEST #8 -- now we do it again: this time foo.w won't be built
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run_make_test(undef, '', "touch baz\n");
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unlink(qw(foo.w foo.x baz));
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# TEST #9 -- make sure that $< is set correctly in the face of order-only
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# prerequisites in pattern rules.
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run_make_test('
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%r: | baz ; @echo $< $^ $|
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bar: foo
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foo:;@:
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baz:;@:',
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'', "foo foo baz\n");
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1;
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