Add currently existing PackageKit backend

backend/meson.build

@@ -0,0 +1,53 @@
+add_languages('cpp', native: false)
+
+curl_dep = meson.get_compiler('c').find_library('curl')
+bzip2_dep = dependency('bzip2')
+
+packagekit_backend_slack_module = shared_module(
+  'pk_backend_slack',
+  'pk-backend-slack.cc',
+  'utils.cc',
+  'pkgtools.cc',
+  'slackpkg.cc',
+  'dl.cc',
+  'job.cc',
+  include_directories: packagekit_src_include,
+  dependencies: [
+    packagekit_glib2_dep,
+    curl_dep,
+    gmodule_dep,
+	sqlite3_dep,
+	bzip2_dep,
+  ],
+  cpp_args: [
+    '-DG_LOG_DOMAIN="PackageKit-Slackware"',
+    '-DLOCALSTATEDIR="@0@"'.format(join_paths(get_option('prefix'), get_option('localstatedir'))),
+    '-DLIBDIR="@0@"'.format(join_paths(get_option('prefix'), get_option('libdir'))),
+    '-DSYSCONFDIR="@0@"'.format(get_option('sysconfdir')),
+  ],
+  override_options: ['c_std=c14', 'cpp_std=c++14'],
+  install: true,
+  install_dir: pk_plugin_dir,
+)
+
+subdir('tests')
+
+slackware_config_data = configuration_data()
+if (target_machine.cpu_family() == 'x86_64')
+  slackware_config_data.set('pkgmain', 'slackware64')
+else
+  slackware_config_data.set('pkgmain', 'slackware')
+endif
+
+configure_file(
+  input: 'Slackware.conf.in',
+  output: 'Slackware.conf',
+  configuration: slackware_config_data,
+  install: true,
+  install_dir: join_paths(get_option('sysconfdir'), 'PackageKit'),
+)
+
+install_data(
+  'metadata.db',
+  install_dir: join_paths(get_option('localstatedir'), 'cache', 'PackageKit', 'metadata'),
+)