diff --git a/articleinspector.cc b/articleinspector.cc
index e0653c2b..7ab091a7 100644
--- a/articleinspector.cc
+++ b/articleinspector.cc
@@ -1,5 +1,7 @@
 #include "articleinspector.hh"
 
+#if QT_VERSION >= 0x040600
+
 #include <algorithm>
 
 using std::list;
@@ -49,3 +51,5 @@ void ArticleInspector::showEvent( QShowEvent * event )
 
   QWebInspector::showEvent( event );
 }
+
+#endif // QT_VERSION
diff --git a/articleinspector.hh b/articleinspector.hh
index f9d25fe5..97f0b593 100644
--- a/articleinspector.hh
+++ b/articleinspector.hh
@@ -1,6 +1,10 @@
 #ifndef ARTICLEINSPECTOR_HH
 #define ARTICLEINSPECTOR_HH
 
+#include <QtGlobal>
+
+#if QT_VERSION >= 0x040600
+
 #include <QWebInspector>
 #include <list>
 #include "config.hh"
@@ -28,4 +32,6 @@ private:
   static std::list< ArticleInspector * > openedInspectors;
 };
 
+#endif // QT_VERSION
+
 #endif // ARTICLEINSPECTOR_HH
diff --git a/articleview.cc b/articleview.cc
index 76034deb..7e6594cc 100644
--- a/articleview.cc
+++ b/articleview.cc
@@ -19,9 +19,12 @@
 #include "dprintf.hh"
 #include "ffmpegaudio.hh"
 #include <QDebug>
-#include <QWebElement>
 #include <QCryptographicHash>
 
+#if QT_VERSION >= 0x040600
+#include <QWebElement>
+#endif
+
 #include <assert.h>
 
 #ifdef Q_OS_WIN32
@@ -1236,6 +1239,7 @@ void ArticleView::contextMenuRequested( QPoint const & pos )
     }
   }
 
+#if QT_VERSION >= 0x040600
   QWebElement el = r.element();
   QUrl imageUrl;
   if( !popupView && el.tagName().compare( "img", Qt::CaseInsensitive ) == 0 )
@@ -1255,6 +1259,7 @@ void ArticleView::contextMenuRequested( QPoint const & pos )
     saveSoundAction = new QAction( tr( "Save s&ound..." ), &menu );
     menu.addAction( saveSoundAction );
   }
+#endif
 
   QString selectedText = ui.definition->selectedText();
 
@@ -1432,6 +1437,7 @@ void ArticleView::contextMenuRequested( QPoint const & pos )
     else
     if( result == saveImageAction || result == saveSoundAction )
     {
+#if QT_VERSION >= 0x040600
       QUrl url = ( result == saveImageAction ) ? imageUrl : targetUrl;
       QString savePath;
       QString fileName;
@@ -1480,6 +1486,7 @@ void ArticleView::contextMenuRequested( QPoint const & pos )
         emit storeResourceSavePath( QDir::toNativeSeparators( fileInfo.absoluteDir().absolutePath() ) );
         saveResource( url, ui.definition->url(), fileName );
       }
+#endif
     }
     else
     {
@@ -1777,8 +1784,9 @@ void ArticleView::performFindOperation( bool restart, bool backwards, bool check
 
     if ( ui.searchCaseSensitive->isChecked() )
       f |= QWebPage::FindCaseSensitively;
-
+#if QT_VERSION >= 0x040600
     f |= QWebPage::HighlightAllOccurrences;
+#endif
 
     ui.definition->findText( "", f );
 
diff --git a/articlewebview.cc b/articlewebview.cc
index 66ed6a03..b2b081dc 100644
--- a/articlewebview.cc
+++ b/articlewebview.cc
@@ -7,10 +7,11 @@
 #include <QApplication>
 #include "articleinspector.hh"
 
-
 ArticleWebView::ArticleWebView( QWidget *parent ):
   QWebView( parent ),
+#if QT_VERSION >= 0x040600
   inspector( NULL ),
+#endif
   midButtonPressed( false ),
   selectionBySingleClick( false ),
   showInspectorDirectly( true )
@@ -19,8 +20,10 @@ ArticleWebView::ArticleWebView( QWidget *parent ):
 
 ArticleWebView::~ArticleWebView()
 {
+#if QT_VERSION >= 0x040600
   if ( inspector )
     inspector->deleteLater();
+#endif
 }
 
 void ArticleWebView::setUp( Config::Class * cfg )
@@ -30,6 +33,7 @@ void ArticleWebView::setUp( Config::Class * cfg )
 
 void ArticleWebView::triggerPageAction( QWebPage::WebAction action, bool checked )
 {
+#if QT_VERSION >= 0x040600
   if ( action == QWebPage::InspectElement )
   {
     // Get or create inspector instance for current view.
@@ -50,6 +54,7 @@ void ArticleWebView::triggerPageAction( QWebPage::WebAction action, bool checked
       return;
     }
   }
+#endif
 
   QWebView::triggerPageAction( action, checked );
 }
@@ -102,9 +107,13 @@ void ArticleWebView::mouseReleaseEvent( QMouseEvent * event )
 void ArticleWebView::mouseDoubleClickEvent( QMouseEvent * event )
 {
   QWebView::mouseDoubleClickEvent( event );
-
+#if QT_VERSION >= 0x040600
   int scrollBarWidth = page()->mainFrame()->scrollBarGeometry( Qt::Vertical ).width();
   int scrollBarHeight = page()->mainFrame()->scrollBarGeometry( Qt::Horizontal ).height();
+#else
+  int scrollBarWidth = 0;
+  int scrollBarHeight = 0;
+#endif
 
   // emit the signal only if we are not double-clicking on scrollbars
   if ( ( event->x() < width() - scrollBarWidth ) &&
diff --git a/extlineedit.cc b/extlineedit.cc
index a404f76e..89834d59 100644
--- a/extlineedit.cc
+++ b/extlineedit.cc
@@ -5,6 +5,10 @@
 
 #include <QPainter>
 
+#if QT_VERSION >= 0x040600
+#include <QPropertyAnimation>
+#endif
+
 ExtLineEdit::ExtLineEdit(QWidget *parent) :
     QLineEdit(parent)
 {
@@ -95,10 +99,9 @@ void ExtLineEdit::updateMargins()
     int leftMargin = iconButtons[realLeft]->pixmap().width() + 8;
     int rightMargin = iconButtons[realRight]->pixmap().width() + 8;
 
-    QMargins margins((iconEnabled[realLeft] ? leftMargin : 0), 1,
-                     (iconEnabled[realRight] ? rightMargin : 0), 1);
-
-    setTextMargins(margins);
+    setTextMargins(
+            (iconEnabled[realLeft] ? leftMargin : 0), 1,
+            (iconEnabled[realRight] ? rightMargin : 0), 1);
 }
 
 void ExtLineEdit::updateButtonPositions()
@@ -110,10 +113,14 @@ void ExtLineEdit::updateButtonPositions()
             iconPos = (iconPos == Left ? Right : Left);
 
         if (iconPos == ExtLineEdit::Right) {
-            const int iconoffset = textMargins().right() + 4;
+            int right;
+            getTextMargins(0, 0, &right, 0);
+            const int iconoffset = right + 4;
             iconButtons[i]->setGeometry(contentRect.adjusted(width() - iconoffset, 0, 0, 0));
         } else {
-            const int iconoffset = textMargins().left() + 4;
+            int left;
+            getTextMargins(&left, 0, 0, 0);
+            const int iconoffset = left + 4;
             iconButtons[i]->setGeometry(contentRect.adjusted(0, 0, -width() + iconoffset, 0));
         }
     }
@@ -172,6 +179,7 @@ void IconButton::paintEvent(QPaintEvent *)
 
 void IconButton::animate(bool visible)
 {
+#if QT_VERSION >= 0x040600
   QPropertyAnimation *animation = new QPropertyAnimation(this, "opacity");
   animation->setDuration(250);
   if (visible)
@@ -183,4 +191,7 @@ void IconButton::animate(bool visible)
     animation->setEndValue(0.0);
   }
   animation->start(QAbstractAnimation::DeleteWhenStopped);
+#else
+  setOpacity(visible ? 1.0 : 0.0);
+#endif
 }
diff --git a/extlineedit.hh b/extlineedit.hh
index 6a480fa7..15adfdff 100644
--- a/extlineedit.hh
+++ b/extlineedit.hh
@@ -6,7 +6,6 @@
 
 #include <QLineEdit>
 #include <QAbstractButton>
-#include <QPropertyAnimation>
 
 class IconButton: public QAbstractButton
 {
diff --git a/gdappstyle.cc b/gdappstyle.cc
index 0caa8b7d..fa7ef7ef 100644
--- a/gdappstyle.cc
+++ b/gdappstyle.cc
@@ -2,6 +2,9 @@
  * Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
 
 #include "gdappstyle.hh"
+
+#if QT_VERSION >= 0x040600
+
 #include "dictionarybar.hh"
 
 #include <QWidget>
@@ -44,3 +47,5 @@ bool GdAppStyle::dictionaryBarButton(const QWidget * widget) const {
 
   return false;
 }
+
+#endif // QT_VERSION
diff --git a/gdappstyle.hh b/gdappstyle.hh
index 28591b4d..006804fc 100644
--- a/gdappstyle.hh
+++ b/gdappstyle.hh
@@ -4,6 +4,11 @@
 #ifndef GDAPPSTYLE_HH
 #define GDAPPSTYLE_HH
 
+#include <QtGlobal>
+
+#if QT_VERSION >= 0x040600
+
+#include <QStyle>
 #include <QProxyStyle>
 #include <QStyleOption>
 
@@ -25,4 +30,6 @@ private:
 
 };
 
+#endif // QT_VERSION
+
 #endif // GDAPPSTYLE_HH
diff --git a/main.cc b/main.cc
index fc09a520..af4ba0b3 100644
--- a/main.cc
+++ b/main.cc
@@ -113,7 +113,9 @@ int main( int argc, char ** argv )
 
   app.setApplicationName( "GoldenDict" );
   app.setOrganizationDomain( "http://goldendict.org/" );
+#if QT_VERSION >= 0x040600
   app.setStyle(new GdAppStyle);
+#endif
 
   #ifndef Q_OS_MAC
     app.setWindowIcon( QIcon( ":/icons/programicon.png" ) );
diff --git a/xdxf.cc b/xdxf.cc
index 2a4ec915..699fd419 100644
--- a/xdxf.cc
+++ b/xdxf.cc
@@ -678,12 +678,27 @@ QString readXhtmlData( QXmlStreamReader & stream )
   return result;
 }
 
+namespace {
+
+/// Deal with Qt 4.5 incompatibility
+QString readElementText( QXmlStreamReader & stream )
+{
+#if QT_VERSION >= 0x040600
+    return stream.readElementText( QXmlStreamReader::SkipChildElements );
+#else
+    return stream.readElementText();
+#endif
+}
+
+}
+
+
 void addAllKeyTags( QXmlStreamReader & stream, list< QString > & words )
 {
   // todo implement support for tag <srt>, that overrides the article sorting order 
   if ( stream.name() == "k" )
   {
-    words.push_back( stream.readElementText( QXmlStreamReader::SkipChildElements ) );
+    words.push_back( readElementText( stream ) );
     return;
   }
 
@@ -1156,12 +1171,12 @@ vector< sptr< Dictionary::Class > > makeDictionaries(
                           stream.readNext();
                           if ( stream.isStartElement() && stream.name() == "abbr_k" )
                           {
-                            s = stream.readElementText( QXmlStreamReader::SkipChildElements );
+                            s = readElementText( stream );
                             keys.push_back( gd::toWString( s ) );
                           }
                           else if ( stream.isStartElement() && stream.name() == "abbr_v" )
                           {
-                            s =  stream.readElementText( QXmlStreamReader::SkipChildElements );
+                            s =  readElementText( stream );
                               value = Utf8::encode( Folding::trimWhitespace( gd::toWString( s ) ) );
                               for( list< wstring >::iterator i = keys.begin(); i != keys.end(); ++i )
                               {
@@ -1180,12 +1195,12 @@ vector< sptr< Dictionary::Class > > makeDictionaries(
                           stream.readNext();
                           if ( stream.isStartElement() && stream.name() == "k" )
                           {
-                            s = stream.readElementText( QXmlStreamReader::SkipChildElements );
+                            s = readElementText( stream );
                             keys.push_back( gd::toWString( s ) );
                           }
                           else if ( stream.isStartElement() && stream.name() == "v" )
                           {
-                            s =  stream.readElementText( QXmlStreamReader::SkipChildElements );
+                            s =  readElementText( stream );
                               value = Utf8::encode( Folding::trimWhitespace( gd::toWString( s ) ) );
                               for( list< wstring >::iterator i = keys.begin(); i != keys.end(); ++i )
                               {