Start advertizing state using systemd notify

src/main.cpp

@@ -18,6 +18,10 @@
 
 #include "picturemodel.h"
 
+#ifdef USING_SYSTEMD
+#include <systemd/sd-daemon.h>
+#endif
+
 #include <QGuiApplication>
 #include <QQmlApplicationEngine>
 #include <QQmlContext>
@@ -142,7 +146,9 @@ int main(int argc, char *argv[])
     engine.load(QUrl(qmlPath + "/main.qml"));
 
     QGuiApplication::processEvents();
+#ifdef USING_SYSTEMD
     sd_notify(0, "READY=1");
+#endif
     return app.exec();
 }
 

src/src.pro

@@ -3,7 +3,7 @@ TEMPLATE = app
 DESTDIR = ../
 
 QT += qml quick dbus sql
-CONFIG += c++11
+CONFIG += c++11 systemd
 
 DEFINES *= QT_USE_QSTRINGBUILDER
 
@@ -12,6 +12,12 @@ box2d {
     include(../3rdparty/qml-box2d/box2d-static.pri)
 }
 
+systemd {
+    DEFINES += USING_SYSTEMD
+    CONFIG += link_pkgconfig
+    PKGCONFIG += libsystemd
+}
+
 contains(QT_CONFIG, static) {
     CONFIG += compiledResources
     DEFINES += STATIC_BUILD