hopefully it will now compile on linux

src/singletons/Toasts.cpp

@@ -26,8 +26,11 @@ namespace chatterino {
 
 bool Toasts::isEnabled()
 {
+#ifdef Q_OS_WIN
     return WinToastLib::WinToast::isCompatible() &&
            getSettings()->notificationToast;
+#endif
+    return false;
 }
 
 void Toasts::sendChannelNotification(const QString &channelName, Platform p)

src/singletons/Toasts.hpp

@@ -15,7 +15,9 @@ public:
     static bool isEnabled();
 
 private:
+#ifdef Q_OS_WIN
     void sendWindowsNotification(const QString &channelName, Platform p);
+#endif
     static void fetchChannelAvatar(
         const QString channelName,
         std::function<void(QString)> successCallback);