Fix build with GCC.

Telegram/SourceFiles/boxes/peers/edit_forum_topic_box.cpp

@@ -200,7 +200,6 @@ bool DefaultIconEmoji::readyInDefaultState() {
 	struct State {
 		QImage frame;
 	};
-	const auto tag = Data::CustomEmojiManager::SizeTag::Large;
 	const auto size = EditIconSize();
 	const auto result = Ui::CreateChild<Ui::AbstractButton>(parent.get());
 	result->show();

Telegram/SourceFiles/boxes/username_box.cpp

@@ -362,11 +362,6 @@ void AddUsernameCheckLabel(
 	Settings::AddSkip(wrapped, skip);
 
 	Settings::AddSkip(container, skip);
-	const auto wrap = container->add(
-		object_ptr<Ui::FollowSlideWrap<Ui::VerticalLayout>>(
-			container,
-			std::move(wrapped)),
-		padding);
 
 	rpl::combine(
 		std::move(checkInfo),

Telegram/SourceFiles/history/view/history_view_message.cpp

@@ -1321,7 +1321,6 @@ void Message::paintTopicButton(
 		height);
 	const auto rect = QRect(trect.x(), trect.y(), width, height);
 
-	const auto st = context.st;
 	const auto stm = context.messageStyle();
 	const auto skip = padding.right() + st::topicButtonArrowSkip;
 	auto color = stm->msgServiceFg->c;

Telegram/SourceFiles/menu/menu_antispam_validator.cpp

@@ -84,7 +84,6 @@ object_ptr<Ui::RpWidget> AntiSpamValidator::createButton() const {
 		tr::lng_manage_peer_antispam_about());
 
 	const auto updateLocked = [=] {
-		const auto &config = channel->session().account().appConfig();
 		const auto min = EnableAntiSpamMinMembers(channel);
 		const auto locked = (channel->membersCount() <= min);
 		state->locked = locked;
@@ -157,7 +156,6 @@ void AntiSpamValidator::addAction(
 	if (!fakeId) {
 		return;
 	}
-	const auto antiSpamUserId = AntiSpamUserId(_channel);
 	const auto suggestReport = [&](MsgId eventId) {
 		const auto text = tr::lng_admin_log_antispam_menu_report_toast(
 			tr::now,

Telegram/SourceFiles/platform/linux/notifications_manager_linux.cpp

@@ -388,7 +388,7 @@ bool NotificationData::init(
 		_notification->set_body(
 			subtitle.isEmpty()
 				? msg.toStdString()
-				: u("%1\n%2"_q.arg(subtitle, msg).toStdString());
+				: u"%1\n%2"_q.arg(subtitle, msg).toStdString());
 
 		_notification->set_icon(
 			Gio::ThemedIcon::create(base::IconName().toStdString()));