diff --git a/CMakeLists.txt b/CMakeLists.txt
index 54cea21..71d3b6e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -45,7 +45,7 @@ macro(qad_plugin NAME _MODULES _LIBS)
 	shstk_qt_plugin(qad_${NAME} "${_MODULES}" "qad_${NAME};${_LIBS}")
 endmacro()
 
-shstk_install(qad FALSE "" "${QAD_VERSION_FILE}")
+shstk_install(qad FALSE "" "${qad_VERSION_FILE}")
 if (NOT LOCAL)
 	file(GLOB CMAKES "cmake/*.cmake" "cmake/*.in")
 	install(FILES ${CMAKES} DESTINATION ${CMAKE_ROOT}/Modules)
@@ -60,7 +60,13 @@ message("----------QAD----------")
 message(" Build for ${QtVersions}")
 message(" Linkage: ${qad_LIB_TYPE_MSG}")
 message(" Type   : ${qad_BUILD_TYPE}")
-message(" Install: \"${CMAKE_INSTALL_PREFIX}\"")
+if (NOT LOCAL)
+	message(" Install: \"${CMAKE_INSTALL_PREFIX}\"")
+else()
+	if(NOT PIP_FREERTOS)
+		message(" Install: local \"bin\", \"lib\" and \"include\"")
+	endif()
+endif()
 message("")
 print_list("${_qt_libs}" " Libraries:" "  * ")
 if (NOT "x${_qt_plugs}" STREQUAL "x")
diff --git a/cmake/FindQAD.cmake b/cmake/FindQAD.cmake
index cd9237c..28d3c36 100644
--- a/cmake/FindQAD.cmake
+++ b/cmake/FindQAD.cmake
@@ -104,7 +104,7 @@ else()
 				add_library(QAD::${_m}${_v} UNKNOWN IMPORTED)
 				set(_deps)
 				foreach (_d ${__deps_${_l}})
-					if (${_d} MATCHES "QAD::*")
+					if (${_d} MATCHES "QAD::.*")
 						list(APPEND _deps ${_d}${_v})
 					else()
 						list(APPEND _deps ${_d})
diff --git a/cmake/QtWraps.cmake b/cmake/QtWraps.cmake
index 409882f..f1055d9 100644
--- a/cmake/QtWraps.cmake
+++ b/cmake/QtWraps.cmake
@@ -217,7 +217,7 @@ macro(find_qt)
 		#if (Qt5_FOUND)
 		#	set(_MSG 0)
 		#endif()
-		find_package(Qt5 COMPONENTS Core LinguistTools UiPlugin Widgets ${_QCOMP} ${_QUIET})
+		find_package(Qt5 COMPONENTS Core LinguistTools UiPlugin Widgets ${_QCOMP} QUIET)
 		if (DEFINED ANDROID_PLATFORM)
 			set(CMAKE_SHARED_MODULE_SUFFIX_CXX ".so")
 			set(CMAKE_SHARED_LIBRARY_SUFFIX_CXX ".so")
diff --git a/libs/graphic/graphic.cpp b/libs/graphic/graphic.cpp
index 5dfd304..6e8c91f 100644
--- a/libs/graphic/graphic.cpp
+++ b/libs/graphic/graphic.cpp
@@ -21,6 +21,8 @@
 #  endif
 #endif
 
+const double deg2rad_qpie = atan(1.) / 45.;
+const double rad2deg_qpie = 45. / atan(1.);
 
 __GraphicRegistrator__ __graphic_registrator__;
 
diff --git a/libs/qglview/CMakeLists.txt b/libs/qglview/CMakeLists.txt
index 2f5e3d1..7f2be50 100644
--- a/libs/qglview/CMakeLists.txt
+++ b/libs/qglview/CMakeLists.txt
@@ -1,8 +1,10 @@
-find_package(OpenGL REQUIRED)
-shstk_qt_project(qglview FALSE "qad" "Gui;OpenGL;Xml" "qad_widgets;qad_utils;${OPENGL_LIBRARIES}")
-shstk_qt_install("qad" FALSE qglview "out_HDR" "out_QM")
+if (((DEFINED QGLVIEW) AND QGLVIEW) OR (NOT DEFINED QGLVIEW))
+	find_package(OpenGL REQUIRED)
+	shstk_qt_project(qglview FALSE "qad" "Gui;OpenGL;Xml" "qad_widgets;qad_utils;${OPENGL_LIBRARIES}")
+	shstk_qt_install("qad" FALSE qglview "${out_HDR}" "${out_QM}")
 
-qt_sources(test_SRC DIR "qglview_test")
-qt_wrap(${test_SRC} CPPS test_CPP)
-qt_add_executable(qglview_test test_CPP)
-qt_target_link_libraries(qglview_test qglview)
+	qt_sources(test_SRC DIR "qglview_test")
+	qt_wrap(${test_SRC} CPPS test_CPP)
+	qt_add_executable(qglview_test test_CPP)
+	qt_target_link_libraries(qglview_test qglview)
+endif()
diff --git a/libs/widgets/evalspinbox.cpp b/libs/widgets/evalspinbox.cpp
index 28324c5..a61b51e 100644
--- a/libs/widgets/evalspinbox.cpp
+++ b/libs/widgets/evalspinbox.cpp
@@ -8,12 +8,14 @@
 #include <QStyle>
 #include <QStyleOptionSpinBox>
 #include "qad_types.h"
+#include "qpievaluator_p.h"
 
 
 EvalSpinBox::EvalSpinBox(QWidget * parent): QAbstractSpinBox(parent) {
 	status = new QWidget(lineEdit());
 	cw = new QWidget(lineEdit());
 	label = new QLabel(lineEdit());
+	eval = new QPIEvaluator();
 	precision_ = -1;
 //	label->hide();
 	clear_im.load(":/icons/edit-clear-locationbar-rtl.png");
@@ -40,9 +42,10 @@ EvalSpinBox::EvalSpinBox(QWidget * parent): QAbstractSpinBox(parent) {
 
 
 EvalSpinBox::~EvalSpinBox() {
+	delete eval;
+	delete label;
 	delete cw;
 	delete status;
-	delete label;
 }
 
 
@@ -124,9 +127,9 @@ void EvalSpinBox::textChanged_(const QString & text) {
 		td = true;
 		t.chop(1);
 	}
-	bool ok = eval.check(t);
+	bool ok = eval->check(t);
 	if (ok) {
-		eval.evaluate();
+		eval->evaluate();
 		if (td) {
 			icon = icon_calc;
 			status->setToolTip("Enter to calc -> "+QString::number(value(), 'G', 10));
@@ -138,7 +141,7 @@ void EvalSpinBox::textChanged_(const QString & text) {
 		if (pv != value()) emit valueChanged(value());
 	} else {
 		icon = icon_fail;
-		status->setToolTip(eval.error());
+		status->setToolTip(eval->error());
 	}
 	resizeIcons();
 }
@@ -152,16 +155,16 @@ void EvalSpinBox::setExpression_() {
 		td = true;
 		t.chop(1);
 	}
-	if (eval.check(t)) {
+	if (eval->check(t)) {
 		/*if (eval.expression() == "0") lineEdit()->clear();
-		else*/ lineEdit()->setText(eval.expression());
-		eval.evaluate();
+		else*/ lineEdit()->setText(eval->expression());
+		eval->evaluate();
 		if (td) lineEdit()->setText(QString::number(value(), 'G', precision_ > 0 ? precision_ : 16));
 		status->setToolTip("OK -> " + QString::number(value(), 'G', 10));
 		icon = icon_ok;
 	} else {
 		icon = icon_fail;
-		status->setToolTip(eval.error());
+		status->setToolTip(eval->error());
 //		qDebug() << eval.expression();
 	}
 	if (!label->isHidden()) {
@@ -169,12 +172,12 @@ void EvalSpinBox::setExpression_() {
 //			label->setText("<html><head/><body><p>" + eval.expression() + " <span style=\"color:#005500;\">-&gt; " + QString::number(value(), 'G', 10) + "</span></p></body></html>");
 //		else
 //			label->setText(eval.expression());
-		if (eval.expression() != QString::number(value(), 'G', 10) && eval.expression() != QString::number(value(), 'G', 11) && eval.isCorrect())
+		if (eval->expression() != QString::number(value(), 'G', 10) && eval->expression() != QString::number(value(), 'G', 11) && eval->isCorrect())
 			label->setText("<html><head/><body><p><span style=\"color:#005500;\">-&gt; " + QString::number(value(), 'G', 10) + "</span></p></body></html>");
 		else
 			label->setText("");
 		lineEdit()->blockSignals(true);
-		if (!eval.isCorrect()) {
+		if (!eval->isCorrect()) {
 			lineEdit()->setStyleSheet("color: darkred;");
 			status->show();
 		} else {
@@ -222,20 +225,20 @@ void EvalSpinBox::clear() {
 
 
 double EvalSpinBox::value() const {
-	if (eval.isCorrect()) {
-		return eval.lastResult().real();
+	if (eval->isCorrect()) {
+		return eval->lastResult().real();
 	}
 	return 0.;
 }
 
 
 const QString & EvalSpinBox::expression() const {
-	return eval.expression();
+	return eval->expression();
 }
 
 
 bool EvalSpinBox::isCleared() const {
-	return (dt == eval.expression() || (value() == 0 && dt.isEmpty()));
+	return (dt == eval->expression() || (value() == 0 && dt.isEmpty()));
 }
 
 
@@ -257,7 +260,7 @@ void EvalSpinBox::focusInEvent(QFocusEvent * event) {
 	status->show();
 	lineEdit()->blockSignals(true);
 	lineEdit()->setStyleSheet("");
-	if (eval.expression() == "0") lineEdit()->clear();
+	if (eval->expression() == "0") lineEdit()->clear();
 	lineEdit()->blockSignals(false);
 	QAbstractSpinBox::focusInEvent(event);
 	resizeIcons();
@@ -271,13 +274,13 @@ void EvalSpinBox::focusOutEvent(QFocusEvent * event) {
 //		label->setText("<html><head/><body><p>" + eval.expression() + " <span style=\"color:#005500;\">-&gt; " + QString::number(value(), 'G', 10) + "</span></p></body></html>");
 //	else
 //		label->setText(eval.expression());
-	if (eval.expression() != QString::number(value(), 'G', 10) && eval.expression() != QString::number(value(), 'G', 11) && eval.isCorrect())
+	if (eval->expression() != QString::number(value(), 'G', 10) && eval->expression() != QString::number(value(), 'G', 11) && eval->isCorrect())
 		label->setText("<html><head/><body><p><span style=\"color:#005500;\">-&gt; " + QString::number(value(), 'G', 10) + "</span></p></body></html>");
 	else
 		label->setText("");
 	label->show();
 	lineEdit()->blockSignals(true);
-	if (!eval.isCorrect()) lineEdit()->setStyleSheet("color: darkred;");
+	if (!eval->isCorrect()) lineEdit()->setStyleSheet("color: darkred;");
 	else status->hide();
 //	lineEdit()->setText(eval.expression() + " -> " + QString::number(value(), 'G', 10));
 	//lineEdit()->clear();
@@ -298,8 +301,8 @@ void EvalSpinBox::stepByDouble(double steps) {
 	//qDebug() << "step" << steps;
 	if (isReadOnly()) return;
 	QString t = text();
-	if (eval.check(t)) {
-		t = eval.expression();
+	if (eval->check(t)) {
+		t = eval->expression();
 		//QRegExp re("(\\-?\\d+)");
 		QRegExp re("[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)");
 		int pos = 0;
@@ -312,8 +315,8 @@ void EvalSpinBox::stepByDouble(double steps) {
 			double v = steps;
 			t = QString::number(v) + t;
 		}
-		eval.check(t);
-		lineEdit()->setText(eval.expression());
+		eval->check(t);
+		lineEdit()->setText(eval->expression());
 	}
 }
 
@@ -326,13 +329,13 @@ void EvalSpinBox::setDefaultText(const QString & t) {
 //		setExpression_();
 //	}
 	//if (t == eval.expression() || (value() == 0 && t.isEmpty())) clear();
-	cw->setVisible((eval.expression() != dt || (dt.isEmpty() && eval.expression() == "0")) && cw_visible);
+	cw->setVisible((eval->expression() != dt || (dt.isEmpty() && eval->expression() == "0")) && cw_visible);
 	resizeIcons();
 }
 
 
 void EvalSpinBox::setClearButtonVisible(bool visible) {
 	cw_visible = visible;
-	cw->setVisible((eval.expression() != dt || (dt.isEmpty() && eval.expression() == "0")) && cw_visible);
+	cw->setVisible((eval->expression() != dt || (dt.isEmpty() && eval->expression() == "0")) && cw_visible);
 	resizeIcons();
 }
diff --git a/libs/widgets/evalspinbox.h b/libs/widgets/evalspinbox.h
index 81d98d0..bc45537 100644
--- a/libs/widgets/evalspinbox.h
+++ b/libs/widgets/evalspinbox.h
@@ -22,9 +22,10 @@
 
 #include <QAbstractSpinBox>
 #include <QMouseEvent>
-#include "qpievaluator.h"
 #include "qad_widgets_export.h"
 
+class QPIEvaluator;
+
 
 class QLabel;
 
@@ -64,7 +65,7 @@ protected:
 
 	QWidget * status;
 	QWidget * cw;
-	QPIEvaluator eval;
+	QPIEvaluator * eval;
 	QLabel * label;
 	QImage icon_ok;
 	QImage icon_fail;
diff --git a/libs/widgets/qpiconfigvaluewidget.cpp b/libs/widgets/qpiconfigvaluewidget.cpp
index c47eba3..4e60b7e 100644
--- a/libs/widgets/qpiconfigvaluewidget.cpp
+++ b/libs/widgets/qpiconfigvaluewidget.cpp
@@ -1,5 +1,5 @@
 #include "qpiconfigvaluewidget.h"
-#include "qpievaluator.h"
+#include "qpievaluator_p.h"
 
 
 ConfigValueWidget::ConfigValueWidget(QWidget * parent): QWidget(parent), lay(QBoxLayout::Down, this) {
diff --git a/libs/utils/qpievaluator.cpp b/libs/widgets/qpievaluator_p.cpp
similarity index 99%
rename from libs/utils/qpievaluator.cpp
rename to libs/widgets/qpievaluator_p.cpp
index 7acd1bf..41ae73f 100644
--- a/libs/utils/qpievaluator.cpp
+++ b/libs/widgets/qpievaluator_p.cpp
@@ -1,4 +1,4 @@
-#include "qpievaluator.h"
+#include "qpievaluator_p.h"
 
 
 QPIEvaluatorContent::QPIEvaluatorContent() {
diff --git a/libs/utils/qpievaluator.h b/libs/widgets/qpievaluator_p.h
similarity index 96%
rename from libs/utils/qpievaluator.h
rename to libs/widgets/qpievaluator_p.h
index 5a5ba11..03fafca 100644
--- a/libs/utils/qpievaluator.h
+++ b/libs/widgets/qpievaluator_p.h
@@ -17,8 +17,8 @@
 	along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef QPIEVALUATOR_H
-#define QPIEVALUATOR_H
+#ifndef QPIEVALUATOR_P_H
+#define QPIEVALUATOR_P_H
 
 #include <QStringList>
 #include <QVector>
@@ -26,7 +26,6 @@
 #include <QDebug>
 #include <cmath>
 #include <complex>
-#include "qad_utils_export.h"
 
 
 #ifndef PIP_MATH_COMPLEX
@@ -67,7 +66,7 @@ namespace QPIEvaluatorTypes {
 						bfIm, bfRe, bfArg, bfLen, bfConj,
 						bfRad, bfDeg};
 
-	struct QAD_UTILS_EXPORT Instruction {
+	struct Instruction {
 		Instruction() {;}
 		Instruction(Operation oper, QVector<int> opers, int out_ind, int func = -1) {
 			operation = oper; operators = opers; out = out_ind; function = func;}
@@ -75,20 +74,20 @@ namespace QPIEvaluatorTypes {
 		QVector<int> operators;
 		int out;
 		int function;};
-	struct QAD_UTILS_EXPORT Element {
+	struct Element {
 		Element() {;}
 		Element(eType new_type, int new_num, int new_var_num = -1) {set(new_type, new_num, new_var_num);}
 		void set(eType new_type, int new_num, int new_var_num = -1) {type = new_type; num = new_num; var_num = new_var_num;}
 		eType type;
 		int num;
 		int var_num;};
-	struct QAD_UTILS_EXPORT Function {
+	struct Function {
 		Function() {arguments = 0; type = bfUnknown;}
 		Function(const QString & name, int args, BaseFunctions ftype) {identifier = name; arguments = args; type = ftype;}
 		QString identifier;
 		BaseFunctions type;
 		int arguments;};
-	struct QAD_UTILS_EXPORT Variable {
+	struct Variable {
 		Variable() {value = 0.;}
 		Variable(const QString & var_name, complexd val) {name = var_name; value = val;}
 		QString name;
@@ -108,7 +107,7 @@ namespace QPIEvaluatorTypes {
 	⋀	&
 	⋁	|
 */
-class QAD_UTILS_EXPORT QPIEvaluatorContent
+class QPIEvaluatorContent
 {
 	friend class QPIEvaluator;
 public:
@@ -146,7 +145,7 @@ private:
 };
 
 
-class QAD_UTILS_EXPORT QPIEvaluator
+class QPIEvaluator
 {
 public:
 	QPIEvaluator() {correct = false ;}
@@ -206,4 +205,4 @@ private:
 inline bool operator ==(QPIEvaluatorTypes::Element e1, QPIEvaluatorTypes::Element e2) {return (e1.type == e2.type && e1.num == e2.num);}
 inline bool operator !=(QPIEvaluatorTypes::Element e1, QPIEvaluatorTypes::Element e2) {return (e1.type != e2.type || e1.num != e2.num);}
 
-#endif // QPIEVALUATOR_H
+#endif // QPIEVALUATOR_P_H
diff --git a/utils/qpicalculator/CMakeLists.txt b/utils/qpicalculator/CMakeLists.txt
index c7cd5ae..2e5488d 100644
--- a/utils/qpicalculator/CMakeLists.txt
+++ b/utils/qpicalculator/CMakeLists.txt
@@ -1,14 +1,19 @@
-project(qpicalc)
-if(APPLE)
-	set(APP_ICON "")
-elseif(WIN32)
-	set(APP_ICON "icons/qpicalculator.ico")
-else()
-	set(APP_ICON "icons/qpicalculator.png")
-endif()
-set(APP_INFO "Small calculator ang grapher")
-qad_application(${PROJECT_NAME} "Gui;Widgets" "qad_utils;qad_widgets;qad_graphic;qad_piqt;pip")
-if (Qt5_FOUND)
-	import_version(${PROJ_NAME}5 ${PROJECT_NAME})
-	deploy_target(${PROJECT_NAME}5 DEPLOY_DIR ${CMAKE_CURRENT_BINARY_DIR} DESTINATION ${ROOT_DIR}/release)
+find_package(PIP)
+if (PIP_FOUND)
+
+	project(qpicalc)
+	if(APPLE)
+		set(APP_ICON "")
+	elseif(WIN32)
+		set(APP_ICON "icons/qpicalculator.ico")
+	else()
+		set(APP_ICON "icons/qpicalculator.png")
+	endif()
+	set(APP_INFO "Small calculator ang grapher")
+	qad_application(${PROJECT_NAME} "Gui;Widgets" "qad_graphic;qad_piqt")
+	if (Qt5_FOUND)
+		import_version(${PROJ_NAME}5 ${PROJECT_NAME})
+		deploy_target(${PROJECT_NAME}5 DEPLOY_DIR ${CMAKE_CURRENT_BINARY_DIR} DESTINATION ${ROOT_DIR}/release)
+	endif()
+
 endif()
diff --git a/utils/qpicalculator/mainwindow.cpp b/utils/qpicalculator/mainwindow.cpp
index e6825f2..442eddf 100644
--- a/utils/qpicalculator/mainwindow.cpp
+++ b/utils/qpicalculator/mainwindow.cpp
@@ -258,13 +258,13 @@ void MainWindow::on_buttonGraphicClear_clicked() {
 
 
 void MainWindow::on_tabWidget_currentChanged(int index) {
-	QPIEvaluator eval;
+	PIEvaluator eval;
 	evaluator.clearCustomVariables();
 	for (int i = 0; i < treeVariables->topLevelItemCount(); ++i) {
 		QString vn, vv;
 		vn = treeVariables->topLevelItem(i)->text(0);
 		vv = treeVariables->topLevelItem(i)->text(1);
-		eval.check(vv);
+		eval.check(Q2PIString(vv));
 		evaluator.setVariable(Q2PIString(vn), eval.evaluate());
 	}
 	if (index == 0) on_lineInput_returnPressed();