File boost.patch of Package supertux2

--- SuperTux-v0.6.3-Source/CMakeLists.txt
+++ SuperTux-v0.6.3-Source/CMakeLists.txt
@@ -171,7 +171,7 @@
 else(ENABLE_BOOST_STATIC_LIBS)
   set(Boost_USE_STATIC_LIBS FALSE)
 endif(ENABLE_BOOST_STATIC_LIBS)
-find_package(Boost REQUIRED COMPONENTS filesystem system date_time locale)
+find_package(Boost REQUIRED COMPONENTS filesystem date_time locale)
 include_directories(SYSTEM ${Boost_INCLUDE_DIR})
 link_directories(${Boost_LIBRARY_DIRS})