Fix multi-thread build crash

ASCOfficeOdfFileW/source/OdfFormat/odf_drawing_context.cpp

@@ -930,8 +930,8 @@ void odf_drawing_context::end_shape()
 		{
 			std::wstring strTransform;
 
-			odf_types::length x11 = (line->draw_line_attlist_.svg_x1_.get() + line->draw_line_attlist_.svg_x2_.get()) / 2;
-			odf_types::length y11 = (line->draw_line_attlist_.svg_y1_.get() + line->draw_line_attlist_.svg_y2_.get()) / 2;
+			odf_types::length x11 = odf_types::length((line->draw_line_attlist_.svg_x1_->get_value() + line->draw_line_attlist_.svg_x2_->get_value()) / 2., line->draw_line_attlist_.svg_x2_->get_unit());
+			odf_types::length y11 = odf_types::length((line->draw_line_attlist_.svg_y1_->get_value() + line->draw_line_attlist_.svg_y2_->get_value()) / 2., line->draw_line_attlist_.svg_y2_->get_unit());
 
 			//if (impl_->current_drawing_state_.in_group_)
 			{

X2tConverter/build/Qt/X2tSLN.pri

@@ -41,6 +41,9 @@ X2tConverter.depends = \
     OdfFileWriterLib \
     XlsFormatLib
 
+# build the project sequentially as listed in SUBDIRS !
+CONFIG += ordered
+
 # for run in qt from this solution
 LIBS += -L$$CORE_BUILDS_LIBRARIES_PATH
 include(../../../Common/3dParty/icu/icu.pri)