Use c++17

Author: Ayuto

src/makefiles/linux/linux.base.cmake

@@ -116,7 +116,7 @@ Set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-invalid-offsetof -Wno-reorder")
 
 # Others
 Set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpmath=sse -msse -m32 -fno-strict-aliasing")
-Set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x -fno-threadsafe-statics -v -fvisibility=hidden")
+Set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -fno-threadsafe-statics -v -fvisibility=hidden")
 
 
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