if(NOT WIN32 AND USE_JANSSON)
	find_package(PkgConfig REQUIRED)
	pkg_check_modules(JANSSON jansson>=2.3)
	
	if(JANSSON_FOUND)
		set(JANSSON_SOURCE "(system)")
		set(JANSSON_PKG libjansson)
		
		include_directories(${JANSSON_INCLUDE_DIRS})
		link_directories(${JANSSON_LIBRARY_DIRS})
	else()
		set(USE_JANSSON OFF)
	endif()
endif()
if(NOT USE_JANSSON)
	unset(JANSSON_SOURCE)
endif()