diff --git a/CMakeLists.txt b/CMakeLists.txt
index 95abbe21..293c951c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -284,10 +284,10 @@ add_subdirectory(COLLADASaxFrameworkLoader)
 add_subdirectory(COLLADAStreamWriter)
 
 # building COLLADAValidator app
-add_subdirectory(COLLADAValidator)
+# add_subdirectory(COLLADAValidator)
 
 # DAE validator app
-add_subdirectory(DAEValidator)
+# add_subdirectory(DAEValidator)
 
 # Library export
 install(EXPORT LibraryExport DESTINATION ${OPENCOLLADA_INST_CMAKECONFIG} FILE OpenCOLLADATargets.cmake)
diff --git a/GeneratedSaxParser/src/GeneratedSaxParserUtils.cpp b/GeneratedSaxParser/src/GeneratedSaxParserUtils.cpp
index 1f9a3eef..dd6f5c59 100644
--- a/GeneratedSaxParser/src/GeneratedSaxParserUtils.cpp
+++ b/GeneratedSaxParser/src/GeneratedSaxParserUtils.cpp
@@ -10,6 +10,7 @@
 
 #include "GeneratedSaxParserUtils.h"
 #include <math.h>
+#include <cmath>
 #include <memory>
 #include <string.h>
 #include <limits>