1 files changed, 68 insertions, 0 deletions
diff --git a/src/kmk/tests/scripts/options/symlinks b/src/kmk/tests/scripts/options/symlinks
new file mode 100644
index 0000000..a1bfce0
--- /dev/null
+++ b/src/kmk/tests/scripts/options/symlinks
@@ -0,0 +1,68 @@
+#                                                                    -*-perl-*-
+
+$description = "Test the -L option.";
+
+$details = "Verify that symlink handling with and without -L works properly.";
+
+# Only run these tests if the system sypports symlinks
+
+# Apparently the Windows port of Perl reports that it does support symlinks
+# (in that the symlink() function doesn't fail) but it really doesn't, so
+# check for it explicitly.
+
+if ($port_type eq 'W32' || !( eval { symlink("",""); 1 })) {
+  # This test is N/A 
+  -1;
+} else {
+
+  # Set up a symlink sym -> dep
+  # We'll make both dep and targ older than sym
+  $pwd =~ m%/([^/]+)$%;
+  $dirnm = $1;
+  &utouch(-10, 'dep');
+  &utouch(-5, 'targ');
+  symlink("../$dirnm/dep", 'sym');
+
+  # Without -L, nothing should happen
+  # With -L, it should update targ
+  run_make_test('targ: sym ; @echo make $@ from $<', '',
+                "#MAKE#: 'targ' is up to date.");
+  run_make_test(undef, '-L', "make targ from sym");
+
+  # Now update dep; in all cases targ should be out of date.
+  &touch('dep');
+  run_make_test(undef, '', "make targ from sym");
+  run_make_test(undef, '-L', "make targ from sym");
+
+  # Now update targ; in all cases targ should be up to date.
+  &touch('targ');
+  run_make_test(undef, '', "#MAKE#: 'targ' is up to date.");
+  run_make_test(undef, '-L', "#MAKE#: 'targ' is up to date.");
+
+  # Add in a new link between sym and dep.  Be sure it's newer than targ.
+  sleep(1);
+  rename('dep', 'dep1');
+  symlink('dep1', 'dep');
+
+  # Without -L, nothing should happen
+  # With -L, it should update targ
+  run_make_test(undef, '', "#MAKE#: 'targ' is up to date.");
+  run_make_test(undef, '-L', "make targ from sym");
+
+  rmfiles('targ', 'dep', 'sym', 'dep1');
+
+  # Check handling when symlinks point to non-existent files.  Without -L we
+  # should get an error: with -L we should use the timestamp of the symlink.
+
+  symlink("../$dirname/dep", 'sym');
+  run_make_test('targ: sym ; @echo make $@ from $<', '',
+                "#MAKE#: *** No rule to make target 'sym', needed by 'targ'.  Stop.", 512);
+
+  run_make_test('targ: sym ; @echo make $@ from $<', '-L',
+                'make targ from sym');
+
+
+  rmfiles('targ', 'sym');
+
+  1;
+}