sstream: No such file or directory

What I have done so far:

Platform: Windows 7 (64 bit)

Installed GCC following this method

Downloaded Armadillo (armadillo-6.400.3.tar.gz) from link

Extracted Armadillo and put the source codes in the include folder.

creating main.cpp :

#include <armadillo>

int main()
{
    return 0;
}

compiling in windows cmd terminal:

g++ main.cpp -std=c++11

The compiler error result:

D:\c++\test>g++ main.cpp -std=c++11
g++: unrecognized option `-std=c++11'
In file included from main.cpp:2:
C:\cygnus\cygwin-b20\H-i586-cygwin32\bin\..\lib\gcc-lib\i586-cygwin32\egcs-2.91.
57\..\..\..\..\..\include\g++\armadillo:24: sstream: No such file or directory
In file included from main.cpp:2:
C:\cygnus\cygwin-b20\H-i586-cygwin32\bin\..\lib\gcc-lib\i586-cygwin32\egcs-2.91.
57\..\..\..\..\..\include\g++\armadillo:27: limits: No such file or directory
In file included from C:\cygnus\cygwin-b20\H-i586-cygwin32\bin\..\lib\gcc-lib\i5
86-cygwin32\egcs-2.91.57\..\..\..\..\..\include\g++\armadillo:50,
                 from main.cpp:2:
C:\cygnus\cygwin-b20\H-i586-cygwin32\bin\..\lib\gcc-lib\i586-cygwin32\egcs-2.91.
57\..\..\..\..\..\include\g++\armadillo_bits/compiler_setup.hpp:173: #error "***
 Need a newer compiler ***"