find_package(Qt4 REQUIRED QtCore QtGui QtSvg)
endif()
-find_package(Boost 1.42 COMPONENTS filesystem system REQUIRED)
+find_package(Boost 1.42 COMPONENTS filesystem system thread REQUIRED)
# Find the platform's thread library (needed for C++11 threads).
# This will set ${CMAKE_THREAD_LIBS_INIT} to the correct, OS-specific value.