build: Add meson build system

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

data/meson.build

@@ -0,0 +1,77 @@
+install_data('net.reactivated.Fprint.conf',
+    install_dir: dbus_conf_dir)
+
+configure_file(
+    configuration: configuration_data({
+        'LIBEXECDIR': fprintd_installdir,
+    }),
+    input: 'net.reactivated.Fprint.service.in',
+    output: 'net.reactivated.Fprint.service',
+    install: true,
+    install_dir: dbus_service_dir,
+)
+
+configure_file(
+    configuration: configuration_data({
+        'libexecdir': fprintd_installdir,
+    }),
+    input: 'fprintd.service.in',
+    output: 'fprintd.service',
+    install: true,
+    install_dir: systemd_unit_dir,
+)
+
+polkit_policy = 'net.reactivated.fprint.device.policy'
+polkit_policy_target = custom_target(polkit_policy,
+    input: '@0@.in'.format(polkit_policy),
+    output: polkit_policy,
+    command: [
+        find_program('intltool-merge'),
+        '-x',
+        '-u',
+        meson.source_root() / 'po',
+        '@INPUT@',
+        '@OUTPUT@',
+    ],
+    install: true,
+    install_dir: polkit_policy_directory,
+)
+
+if xmllint.found()
+    test(polkit_policy,
+        xmllint,
+        depends: polkit_policy_target,
+        args: [
+            '--noout',
+            polkit_policy_target.full_path(),
+        ])
+endif
+
+install_data('fprintd.conf',
+    install_dir: sysconfdir)
+
+if get_option('man')
+    manfiles = {
+        'fprintd': 1,
+        'pam_fprintd': 8,
+    }
+
+    foreach man_name, man_section: manfiles
+        custom_target('man_' + man_name + '.' + man_section.to_string(),
+            input: man_name + '.pod',
+            output: man_name + '.' + man_section.to_string(),
+            command: [
+                pod2man,
+                '-c', '',
+                '-s', man_section.to_string(),
+                '-q', 'none',
+                '-n', man_name,
+                '-r', 'freedesktop',
+                '@INPUT@',
+                '@OUTPUT@',
+            ],
+            install: true,
+            install_dir: datadir / 'man' / 'man' + man_section.to_string(),
+        )
+    endforeach
+endif