Fix issue 93: build with Qt 4.5.

Guard some Qt >= 4.6 features in version checks.

src/networkaccessmanager.cpp

@@ -74,10 +74,12 @@ QNetworkReply *NetworkAccessManager::createRequest(Operation op, const QNetworkR
         qDebug() << "HTTP/1.1 POST Request";
         break;
     }
+#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
     case QNetworkAccessManager::DeleteOperation: {
         qDebug() << "HTTP/1.1 DELETE Request";
         break;
     }
+#endif
 #if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)
     case QNetworkAccessManager::CustomOperation: {
         qDebug() << "HTTP/1.1 CUSTOM Request";

src/phantom.cpp

@@ -135,7 +135,9 @@ Phantom::Phantom(QObject *parent)
     }
 
     if (m_proxyHost.isEmpty()) {
+#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
         QNetworkProxyFactory::setUseSystemConfiguration(true);
+#endif
     } else {
         QNetworkProxy proxy(QNetworkProxy::HttpProxy, m_proxyHost, m_proxyPort);
         QNetworkProxy::setApplicationProxy(proxy);
@@ -385,11 +387,13 @@ void Phantom::sleep(int ms)
     }
 }
 
+#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
 void Phantom::setFormInputFile(QWebElement el, const QString &fileTag)
 {
     m_page.m_nextFileTag = fileTag;
     el.evaluateJavaScript(JS_MOUSEEVENT_CLICK_WEBELEMENT);
 }
+#endif
 
 // private slots:
 void Phantom::finish(bool success)

src/phantom.h

@@ -83,7 +83,11 @@ class Phantom: public QObject
 public slots:
     void exit(int code = 0);
     void open(const QString &address);
+
+    // moc does not understand QT_VERSION_CHECK and hence the encoded hex
+#if QT_VERSION >= 0x040600
     void setFormInputFile(QWebElement el, const QString &fileTag);
+#endif
     bool render(const QString &fileName);
     void sleep(int ms);