Disable parsebyparts example for clang

Author: miloyip

example/parsebyparts/parsebyparts.cpp

@@ -1,7 +1,8 @@
 // Example of parsing JSON to document by parts.
 
 // Using C++11 threads
-#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1700)
+// Temporarily disable for clang (older version) due to incompatibility with libstdc++
+#if (__cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1700)) && !defined(__clang__)
 
 #include "rapidjson/document.h"
 #include "rapidjson/error/en.h"