fix windows build

src/core/qgsvectorfilewriter.h

@@ -160,7 +160,7 @@ class CORE_EXPORT QgsVectorFileWriter
     /** Interface to convert raw field values to their user-friendly value.
      * @note Added in QGIS 2.16
      */
-    class FieldValueConverter
+    class CORE_EXPORT FieldValueConverter
     {
       public:
         /** Constructor */

src/plugins/georeferencer/qgsmapcoordsdialog.h

@@ -32,6 +32,7 @@ class QgsGeorefMapToolEmitPoint : public QgsMapTool
   public:
     explicit QgsGeorefMapToolEmitPoint( QgsMapCanvas *canvas )
         : QgsMapTool( canvas )
+        , mSnappingMarker( nullptr )
     {
     }
 
@@ -90,8 +91,9 @@ class QgsGeorefMapToolEmitPoint : public QgsMapTool
   private:
     struct MappedPoint
     {
+      MappedPoint() : snapped( false ) {}
       QgsPoint point;
-      bool snapped = false;
+      bool snapped;
     };
 
     MappedPoint mapPoint( QMouseEvent *e )
@@ -106,7 +108,7 @@ class QgsGeorefMapToolEmitPoint : public QgsMapTool
       return ret;
     }
 
-    QgsVertexMarker* mSnappingMarker = nullptr;
+    QgsVertexMarker* mSnappingMarker;
 };
 
 class QgsMapCoordsDialog : public QDialog, private Ui::QgsMapCoordsDialogBase

src/providers/ogr/qgsogrdataitems.cpp

@@ -372,7 +372,7 @@ QGISEXTERN QgsDataItem * dataItem( QString thePath, QgsDataItem* parentItem )
     return nullptr;
   }
 
-  QgsDebugMsgLevel( QString( "OGR Driver : %1 " ).arg( OGR_Dr_GetName( hDriver ) ), 2 );
+  QgsDebugMsgLevel( QString( "OGR Driver : %1" ).arg( OGR_Dr_GetName( hDriver ) ), 2 );
 
   int numLayers = OGR_DS_GetLayerCount( hDataSource );