diff --git a/src/barchart/qbarseries.cpp b/src/barchart/qbarseries.cpp
index 4af743c..8c4551d 100644
--- a/src/barchart/qbarseries.cpp
+++ b/src/barchart/qbarseries.cpp
@@ -224,6 +224,7 @@ bool QBarSeries::separatorsVisible()
 bool QBarSeries::setModel(QAbstractItemModel* model)
 {
     m_model = model;
+    return true;
 }
 
 void QBarSeries::setModelMappingCategories(int modelColumn)
diff --git a/src/piechart/qpieseries.cpp b/src/piechart/qpieseries.cpp
index 63665c7..743ff7f 100644
--- a/src/piechart/qpieseries.cpp
+++ b/src/piechart/qpieseries.cpp
@@ -565,6 +565,8 @@ bool QPieSeries::setModel(QAbstractItemModel* model)
         connect(m_model,SIGNAL(rowsInserted(QModelIndex, int, int)), this, SLOT(modelDataAdded(QModelIndex,int,int)));
         connect(m_model, SIGNAL(rowsRemoved(QModelIndex, int, int)), this, SLOT(modelDataRemoved(QModelIndex,int,int)));
     }
+
+    return true;
 }
 
 void QPieSeries::setModelMapping(int modelValuesLine, int modelLabelsLine, Qt::Orientation orientation)
diff --git a/src/splinechart/qsplineseries.cpp b/src/splinechart/qsplineseries.cpp
index 81154ac..eb3976d 100644
--- a/src/splinechart/qsplineseries.cpp
+++ b/src/splinechart/qsplineseries.cpp
@@ -141,6 +141,7 @@ bool QSplineSeries::setModel(QAbstractItemModel* model)
 {
     QXYSeries::setModel(model);
 //    calculateControlPoints();
+    return true;
 }
 
 void QSplineSeries::setModelMapping(int modelX, int modelY, Qt::Orientation orientation)
diff --git a/src/src.pro b/src/src.pro
index b2aab8d..0101976 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -4,6 +4,7 @@ DESTDIR = $$CHART_BUILD_LIB_DIR
 TEMPLATE = lib
 QT += core \
     gui
+win32: LIBS += User32.lib
 CONFIG += debug_and_release
 CONFIG(debug, debug|release):TARGET = QtCommercialChartd
 SOURCES += \
@@ -79,7 +80,7 @@ for(file, PUBLIC_HEADERS) {
     class = $$split(class,' ')
     class = $$replace(class,' ','')
     class = $$member(class,0)
-    command = "echo \"$${LITERAL_HASH}include \\\"$$name\\\"\" > $$CHART_BUILD_PUBLIC_HEADER_DIR/$$class" 
+    command = "echo $${LITERAL_HASH}include \"$$name\" > $$CHART_BUILD_PUBLIC_HEADER_DIR/$$class"
     PUBLIC_QT_HEADERS += $$CHART_BUILD_PUBLIC_HEADER_DIR/$$class
     system($$command)
     }
diff --git a/src/xychart/qxyseries.cpp b/src/xychart/qxyseries.cpp
index ff3b7d9..60a2734 100644
--- a/src/xychart/qxyseries.cpp
+++ b/src/xychart/qxyseries.cpp
@@ -290,6 +290,7 @@ bool QXYSeries::setModel(QAbstractItemModel* model) {
     connect(m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(modelUpdated(QModelIndex, QModelIndex)));
     connect(m_model,SIGNAL(rowsInserted(QModelIndex, int, int)), this, SLOT(modelDataAdded(QModelIndex,int,int)));
     connect(m_model, SIGNAL(rowsRemoved(QModelIndex, int, int)), this, SLOT(modelDataRemoved(QModelIndex,int,int)));
+    return true;
 }
 
 void QXYSeries::setModelMapping(int modelX, int modelY, Qt::Orientation orientation)