build: Add meson build system

Reuse the generated dbus interface .xml files from fprintd to avoid
unnecessary copies.

tests/pam/meson.build

@@ -0,0 +1,26 @@
+subdir('services')
+
+tests = [
+    'test_pam_fprintd',
+]
+
+foreach t: tests
+    test(t,
+        python3,
+        args: meson.current_source_dir() / t + '.py',
+        suite: ['PAM'],
+        depends: [
+            pam_fprintd,
+            pam_service_file,
+        ],
+        env: [
+            'TOPBUILDDIR=' + meson.build_root(),
+            'TOPSRCDIR=' + meson.source_root(),
+            'LD_PRELOAD=libpam_wrapper.so',
+            'PAM_WRAPPER=1',
+            'PAM_WRAPPER_SERVICE_DIR=' + meson.current_build_dir() / 'services',
+            'G_DEBUG=fatal-warnings',
+        ],
+        timeout: 60,
+    )
+endforeach

tests/pam/services/meson.build

@@ -0,0 +1,13 @@
+# Meson doesn't allow to have configure_file's as targets we depend on... Meh!
+pam_service_file = custom_target('pam_test_service_file',
+    output: 'null',
+    command: 'true',
+    depends: pam_fprintd,
+    depend_files: configure_file(
+        input: 'fprintd-pam-test.in',
+        output: 'fprintd-pam-test',
+        configuration: configuration_data({
+            'FPRINTDPAMPATH': pam_fprintd.full_path(),
+        }),
+    ),
+)

tests/pam/test_pam_fprintd.py

@@ -163,7 +163,7 @@ class TestPamFprintd(dbusmock.DBusTestCase):
 
 if __name__ == '__main__':
     if 'PAM_WRAPPER_SERVICE_DIR' not in os.environ:
-        print('Cannot run test without environment set correctly, run "make check" instead')
+        print('Cannot run test without environment set correctly, run "meson test" instead')
         sys.exit(1)
     # set stream to sys.stderr to get debug output
     unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout, verbosity=2))