Add i18n basic structure

Closes #3.

src/main.c

@@ -22,6 +22,7 @@
  *
  */
 
+#include <glib/gi18n.h>
 #include <gtk/gtk.h>
 
 #define HANDY_USE_UNSTABLE_API
@@ -85,6 +86,10 @@ main (int    argc,
   GtkApplication *app;
   int status;
 
+  textdomain (GETTEXT_PACKAGE);
+  bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+  bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
+
   app = gtk_application_new (APP_ID, G_APPLICATION_FLAGS_NONE);
   g_set_prgname (APP_ID);
   g_signal_connect (app, "activate", G_CALLBACK (show_window), NULL);

src/meson.build

@@ -60,8 +60,11 @@ calls_dummy_sources = ['calls-dummy-call.c', 'calls-dummy-call.h',
                        'calls-dummy-provider.c', 'calls-dummy-provider.h',
                       ]
 
+prefix = get_option('prefix')
 config_data = configuration_data()
 config_data.set_quoted('APP_ID', calls_id)
+config_data.set_quoted('GETTEXT_PACKAGE', calls_name)
+config_data.set_quoted('LOCALEDIR', join_paths(prefix, get_option('localedir')))
 config_data.set_quoted('PACKAGE_URL', calls_homepage)
 config_data.set_quoted('PACKAGE_VERSION', calls_version)
 config_data.set_quoted('VCS_TAG', '@VCS_TAG@')