diff --git a/.travis.yml b/.travis.yml
index 4f2008c..5fea3a7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -71,7 +71,7 @@ after_script:
   - if [ "$GCOV" != "" ]; then
         ./ci/warning_send.py --find-path ./out/Linux_x86_64/$CONF/build/$BUILDER/esvg/;
     fi
-  - ./out/Linux_x86_64/$CONF/staging/$BUILDER/esvg-test/esvg-test.app/bin/esvg-test --etk-log-level=6 | tee out_test.txt
+  - ./out/Linux_x86_64/$CONF/staging/$BUILDER/esvg-test/esvg-test.app/bin/esvg-test --etk-log-level=3 | tee out_test.txt
   - if [ "$GCOV" != "" ]; then
         ./ci/test_send.py --file=out_test.txt;
         lutin -C -P -t $TARGET -c $BUILDER $COMPILATOR_OPTION $BUS -m $CONF -p esvg?gcov;
diff --git a/esvg/render/Path.cpp b/esvg/render/Path.cpp
index 4c877c8..b1c19b6 100644
--- a/esvg/render/Path.cpp
+++ b/esvg/render/Path.cpp
@@ -101,8 +101,13 @@ void interpolateCubicBezier(std::vector<esvg::render::Point>& _listPoint,
 	vec2 pos34 = (_pos3+_pos4)*0.5f;
 	
 	vec2 delta = _pos4 - _pos1;
-	float distance2 = std::abs(((_pos2.x() - _pos4.x()) * delta.y() - (_pos2.y() - _pos4.y()) * delta.x() ));
-	float distance3 = std::abs(((_pos3.x() - _pos4.x()) * delta.y() - (_pos3.y() - _pos4.y()) * delta.x() ));
+	#if __CPP_VERSION__ >= 2011 && !defined(__TARGET_OS__MacOs) && !defined(__TARGET_OS__IOs)
+		float distance2 = std::abs(((_pos2.x() - _pos4.x()) * delta.y() - (_pos2.y() - _pos4.y()) * delta.x() ));
+		float distance3 = std::abs(((_pos3.x() - _pos4.x()) * delta.y() - (_pos3.y() - _pos4.y()) * delta.x() ));
+	#else
+		float distance2 = fabs(((_pos2.x() - _pos4.x()) * delta.y() - (_pos2.y() - _pos4.y()) * delta.x() ));
+		float distance3 = fabs(((_pos3.x() - _pos4.x()) * delta.y() - (_pos3.y() - _pos4.y()) * delta.x() ));
+	#endif
 	
 	if ((distance2 + distance3)*(distance2 + distance3) < _threshold * delta.length2()) {
 		_listPoint.push_back(esvg::render::Point(_pos4, _type) );
diff --git a/esvg/render/Weight.cpp b/esvg/render/Weight.cpp
index 5fe8e9a..db572bd 100644
--- a/esvg/render/Weight.cpp
+++ b/esvg/render/Weight.cpp
@@ -165,7 +165,11 @@ void esvg::render::Weight::generate(ivec2 _size, int32_t _subSamplingCount, cons
 			for (auto &it : listPosition) {
 				if (currentPos != int32_t(it.first)) {
 					// fill to the new pos -1:
-					float endValue = float(std::min(1,std::abs(lastState))) * deltaSize;
+					#if __CPP_VERSION__ >= 2011 && !defined(__TARGET_OS__MacOs) && !defined(__TARGET_OS__IOs)
+						float endValue = float(std::min(1,std::abs(lastState))) * deltaSize;
+					#else
+						float endValue = float(std::min(1,abs(lastState))) * deltaSize;
+					#endif
 					for (int32_t iii=currentPos+1; iii<int32_t(it.first); ++iii) {
 						scanline.set(iii, endValue);
 					}