1#                                                              -*-mode: perl-*-
2
3$description = "Test GNU make's auto-reinvocation feature.";
4
5$details = "\
6If the makefile or one it includes can be rebuilt then it is, and make
7is reinvoked.  We create a rule to rebuild the makefile from a temp
8file, then touch the temp file to make it newer than the makefile.";
9
10$omkfile = $makefile;
11
12&utouch(-600, 'incl.mk');
13# For some reason if we don't do this then the test fails for systems
14# with sub-second timestamps, maybe + NFS?  Not sure.
15&utouch(-1, 'incl-1.mk');
16
17run_make_test('
18all: ; @echo running rules.
19
20#MAKEFILE# incl.mk: incl-1.mk
21	@echo rebuilding $@
22	@echo >> $@
23
24include incl.mk',
25              '', "rebuilding incl.mk\nrunning rules.\n");
26
27# Make sure updating the makefile itself also works
28
29&utouch(-600, $omkfile);
30
31run_make_test(undef, '', "rebuilding #MAKEFILE#\nrunning rules.\n");
32
33&rmfiles('incl.mk', 'incl-1.mk');
34
35
36# In this test we create an included file that's out-of-date, but then
37# the rule doesn't update it.  Make shouldn't re-exec.
38
39&utouch(-600, 'b','a');
40#&utouch(-10, 'a');
41&touch('c');
42
43run_make_test('
44SHELL = /bin/sh
45
46all: ; @echo hello
47
48a : b ; echo >> $@
49
50b : c ; [ -f $@ ] || echo >> $@
51
52c: ; echo >> $@
53
54include $(F)',
55              'F=a', "[ -f b ] || echo >> b\nhello\n");
56
57# Now try with the file we're not updating being the actual file we're
58# including: this and the previous one test different parts of the code.
59
60run_make_test(undef, "F=b", "[ -f b ] || echo >> b\nhello\n")
61
62&rmfiles('a','b','c');
63
64# This tells the test driver that the perl test script executed properly.
651;
66