diff --git a/articleview.cc b/articleview.cc
index 3941d0c6..3a6611f6 100644
--- a/articleview.cc
+++ b/articleview.cc
@@ -386,10 +386,8 @@ ArticleView::~ArticleView()
   cleanupTemp();
   audioPlayer->stop();
 
-#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
   ui.definition->ungrabGesture( Gestures::GDPinchGestureType );
   ui.definition->ungrabGesture( Gestures::GDSwipeGestureType );
-#endif
 }
 
 void ArticleView::showDefinition( Config::InputPhrase const & phrase, unsigned group,
@@ -597,7 +595,6 @@ void ArticleView::loadFinished( bool )
     articleToJump.clear();
   }
 
-#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
   if( !Utils::Url::queryItemValue( url, "gdanchor" ).isEmpty() )
   {
     QString anchor = QUrl::fromPercentEncoding( Utils::Url::encodedQueryItemValue( url, "gdanchor" ) );
@@ -631,7 +628,6 @@ void ArticleView::loadFinished( bool )
          QString( "window.location.hash = \"%1\"" ).arg( QString::fromUtf8( url.toEncoded() ) ) );
     }
   }
-#endif
 
   emit pageLoaded( this );
 
@@ -868,7 +864,6 @@ bool ArticleView::handleF3( QObject * /*obj*/, QEvent * ev )
 
 bool ArticleView::eventFilter( QObject * obj, QEvent * ev )
 {
-#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
   if( ev->type() == QEvent::Gesture )
   {
     Gestures::GestureResult result;
@@ -920,7 +915,6 @@ bool ArticleView::eventFilter( QObject * obj, QEvent * ev )
       return true;
     }
   }
-#endif
 
   if ( handleF3( obj, ev ) )
   {
diff --git a/delegate.cc b/delegate.cc
index 62ad448c..ffeeb102 100644
--- a/delegate.cc
+++ b/delegate.cc
@@ -10,11 +10,8 @@ QStyledItemDelegate()
 
 void WordListItemDelegate::paint( QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index ) const
 {
-#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
   QStyleOptionViewItem opt4 = option;
-#else
-  QStyleOptionViewItemV4 opt4 = option;
-#endif
+
   QStyleOptionViewItem opt = option;
   initStyleOption( &opt4, index );
   if( opt4.text.isRightToLeft() )
diff --git a/dictheadwords.cc b/dictheadwords.cc
index 371b13cb..201290b3 100644
--- a/dictheadwords.cc
+++ b/dictheadwords.cc
@@ -11,11 +11,9 @@
 #include <QTimer>
 #include <QProgressDialog>
 
-#if QT_VERSION >= QT_VERSION_CHECK( 5, 12, 0 )
 #include <QRegularExpression>
 #include "wildcard.hh"
 #include "gddebug.hh"
-#endif
 
 #define AUTO_APPLY_LIMIT 150000
 
diff --git a/dsl_details.cc b/dsl_details.cc
index 9ef11d88..843224f4 100644
--- a/dsl_details.cc
+++ b/dsl_details.cc
@@ -1226,8 +1226,6 @@ void expandOptionalParts( wstring & str, list< wstring > * result,
           {
             if( !inside_recurse )
             {
-//                expanded.sort();
-//                result->merge(expanded );
                 result->splice(result->end(),expanded);
             }
             return;
diff --git a/gestures.cc b/gestures.cc
index c0c07b73..5a25a603 100644
--- a/gestures.cc
+++ b/gestures.cc
@@ -8,8 +8,6 @@
 #include "articleview.hh"
 #include "gestures.hh"
 
-#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
-
 namespace Gestures
 {
 
@@ -80,9 +78,7 @@ QGestureRecognizer::Result GDPinchGestureRecognizer::recognize( QGesture * state
         gest->isNewSequence = true;
         break;
       }
-#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
     case QEvent::TouchCancel:
-#endif
     case QEvent::TouchEnd:
       {
         result = QGestureRecognizer::CancelGesture;
@@ -225,9 +221,7 @@ QGestureRecognizer::Result GDSwipeGestureRecognizer::recognize( QGesture * state
         result = QGestureRecognizer::MayBeGesture;
         break;
       }
-#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
     case QEvent::TouchCancel:
-#endif
     case QEvent::TouchEnd:
       {
         fewTouchPointsPresented = false;
@@ -394,4 +388,3 @@ void unregisterRecognizers()
 
 } // namespace
 
-#endif //QT_VERSION
diff --git a/gestures.hh b/gestures.hh
index 35011618..060b126b 100644
--- a/gestures.hh
+++ b/gestures.hh
@@ -1,8 +1,6 @@
 #ifndef __GESTURES_HH_INCLUDED__
 #define __GESTURES_HH_INCLUDED__
 
-#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
-
 #include <QGestureRecognizer>
 #include <QGesture>
 #include <QTimer>
@@ -112,6 +110,4 @@ bool handleGestureEvent( QObject * obj, QEvent * event, GestureResult & result,
 
 } // namespace
 
-#endif
-
 #endif // __GESTURES_HH_INCLUDED__
diff --git a/main.cc b/main.cc
index 45318ae6..2255c7ab 100644
--- a/main.cc
+++ b/main.cc
@@ -40,10 +40,6 @@
 
 #include "gddebug.hh"
 
-#if defined( Q_OS_MAC ) && QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
-#include "lionsupport.h"
-#endif
-
 void gdMessageHandler( QtMsgType type, const QMessageLogContext &context, const QString &mess )
 {
   Q_UNUSED( context );
diff --git a/mainwindow.cc b/mainwindow.cc
index 82fadfcf..82b46748 100644
--- a/mainwindow.cc
+++ b/mainwindow.cc
@@ -164,10 +164,8 @@ MainWindow::MainWindow( Config::Class & cfg_ ):
 
   articleMaker.setCollapseParameters( cfg.preferences.collapseBigArticles, cfg.preferences.articleSizeLimit );
 
-#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
   // Set own gesture recognizers
   Gestures::registerRecognizers();
-#endif
 
   // use our own, custom statusbar
   setStatusBar(0);
@@ -888,10 +886,8 @@ MainWindow::MainWindow( Config::Class & cfg_ ):
   ( static_cast< QHotkeyApplication * >( qApp ) )->setMainWindow( this );
 #endif
 
-#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
   ui.centralWidget->grabGesture( Gestures::GDPinchGestureType );
   ui.centralWidget->grabGesture( Gestures::GDSwipeGestureType );
-#endif
 
   if( layoutDirection() == Qt::RightToLeft )
   {
@@ -1015,11 +1011,9 @@ MainWindow::~MainWindow()
 
   ftsIndexing.stopIndexing();
 
-#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
   ui.centralWidget->ungrabGesture( Gestures::GDPinchGestureType );
   ui.centralWidget->ungrabGesture( Gestures::GDSwipeGestureType );
 //  Gestures::unregisterRecognizers();
-#endif
 
   // Close all tabs -- they should be destroyed before network managers
   // do.
diff --git a/scanpopup.cc b/scanpopup.cc
index 3c70321e..4a16d75d 100644
--- a/scanpopup.cc
+++ b/scanpopup.cc
@@ -315,10 +315,8 @@ ScanPopup::ScanPopup( QWidget * parent,
   ui.goBackButton->setEnabled( false );
   ui.goForwardButton->setEnabled( false );
 
-#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
   grabGesture( Gestures::GDPinchGestureType );
   grabGesture( Gestures::GDSwipeGestureType );
-#endif
 
 #ifdef HAVE_X11
   scanFlag = new ScanFlag( this );
@@ -349,10 +347,8 @@ ScanPopup::~ScanPopup()
 
   disableScanning();
 
-#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
   ungrabGesture( Gestures::GDPinchGestureType );
   ungrabGesture( Gestures::GDSwipeGestureType );
-#endif
 }
 
 void ScanPopup::saveConfigData()
diff --git a/xdxf.cc b/xdxf.cc
index 70de083d..192daeaf 100644
--- a/xdxf.cc
+++ b/xdxf.cc
@@ -754,7 +754,6 @@ qint64 GzippedFile::readData( char * data, qint64 maxSize )
   // The returning value translates directly to QIODevice semantics
   int n = gzread( gz, data, maxSize );
 
-#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
   // With QT 5.x QXmlStreamReader ask one byte instead of one UTF-8 char.
   // We read and return all bytes for char.
 
@@ -775,7 +774,6 @@ qint64 GzippedFile::readData( char * data, qint64 maxSize )
     if( addBytes )
       n += gzread( gz, data + 1, addBytes );
   }
-#endif
 
   return n;
 }