APP_STL: = stlport_static
APP_CPPFLAGS + = -std = gnu ++ 11
NDK_TOOLCHAIN_VERSION: = 4.8
You are creating STLPort again - which, as far as I can tell, is an implementation of the standard C ++ 03 library. Therefore, it will not have C ++ 11 headers.
From other parameters, you might think:
APP_STL:= gnustl_static
or
APP_STL:= c++_static
GNU libstd ++ LLVM lib++ . GPL ( Google libstd ++ ), lib++. , , , .