Change define to determine use of DBUS to USE_DBUS, to prevent overlap with Qt-defined QT_DBUS

bitcoin-qt.pro

@@ -23,7 +23,7 @@ count(USE_UPNP, 1) {
 # use: qmake "USE_DBUS=1"
 count(USE_DBUS, 1) {
     message(Building with DBUS (Freedesktop notifications) support)
-    DEFINES += QT_DBUS
+    DEFINES += USE_DBUS
     QT += dbus
 }
 

src/qt/notificator.cpp

@@ -9,7 +9,7 @@
 #include <QSystemTrayIcon>
 #include <QMessageBox>
 
-#ifdef QT_DBUS
+#ifdef USE_DBUS
 #include <QtDBus/QtDBus>
 #include <stdint.h>
 #endif
@@ -23,7 +23,7 @@ Notificator::Notificator(const QString &programName, QSystemTrayIcon *trayicon,
     programName(programName),
     mode(None),
     trayIcon(trayicon)
-#ifdef QT_DBUS
+#ifdef USE_DBUS
     ,interface(0)
 #endif
 {
@@ -31,7 +31,7 @@ Notificator::Notificator(const QString &programName, QSystemTrayIcon *trayicon,
     {
         mode = QSystemTray;
     }
-#ifdef QT_DBUS
+#ifdef USE_DBUS
     interface = new QDBusInterface("org.freedesktop.Notifications",
           "/org/freedesktop/Notifications", "org.freedesktop.Notifications");
     if(interface->isValid())
@@ -43,12 +43,12 @@ Notificator::Notificator(const QString &programName, QSystemTrayIcon *trayicon,
 
 Notificator::~Notificator()
 {
-#ifdef QT_DBUS
+#ifdef USE_DBUS
     delete interface;
 #endif
 }
 
-#ifdef QT_DBUS
+#ifdef USE_DBUS
 
 // Loosely based on http://www.qtcentre.org/archive/index.php/t-25879.html
 class FreedesktopImage
@@ -205,7 +205,7 @@ void Notificator::notify(Class cls, const QString &title, const QString &text, c
 {
     switch(mode)
     {
-#ifdef QT_DBUS
+#ifdef USE_DBUS
     case Freedesktop:
         notifyDBus(cls, title, text, icon, millisTimeout);
         break;

src/qt/notificator.h

@@ -6,7 +6,7 @@
 
 QT_BEGIN_NAMESPACE
 class QSystemTrayIcon;
-#ifdef QT_DBUS
+#ifdef USE_DBUS
 class QDBusInterface;
 #endif
 QT_END_NAMESPACE
@@ -52,7 +52,7 @@ private:
     QString programName;
     Mode mode;
     QSystemTrayIcon *trayIcon;
-#ifdef QT_DBUS
+#ifdef USE_DBUS
     QDBusInterface *interface;
 
     void notifyDBus(Class cls, const QString &title, const QString &text, const QIcon &icon, int millisTimeout);