--- old/sandbox/CMakeLists.txt
+++ new/sandbox/CMakeLists.txt
@@ -4,9 +4,11 @@
 add_executable(sandbox_json sandbox_json.cpp)
 add_executable(sandbox_rtti sandbox_rtti.cpp)

+if(Boost_FOUND)
 add_executable(sandbox_vs sandbox_vs.cpp)
 target_link_libraries(sandbox_vs sandbox_vs_dll)
 include_directories(sandbox_shared_lib)
+endif(Boost_FOUND)

 if(Boost_FOUND)
   add_executable(performance performance.cpp)