Fix optional building with or without libudev

libnymea-zigbee/libnymea-zigbee.pro

@@ -3,13 +3,13 @@ include(../config.pri)
 TARGET = nymea-zigbee1
 TEMPLATE = lib
 
-
-disable_udev {
+CONFIG += link_pkgconfig
+packagesExist(libudev) {
+    message(Build with libudev support)
+    PKGCONFIG += libudev
+} else {
     message(Build without libudev support)
     DEFINES += DISABLE_UDEV
-} else {
-    CONFIG += link_pkgconfig
-    PKGCONFIG += libudev
 }
 
 SOURCES += \

libnymea-zigbee/zigbeeuartadaptermonitor.cpp

@@ -64,7 +64,7 @@ ZigbeeUartAdapterMonitor::ZigbeeUartAdapterMonitor(QObject *parent) : QObject(pa
         }
 
     });
-
+    m_timer->start();
 #else
     // Init udev
     m_udev = udev_new();