From MinGW <type_traits> header. 
C++11 is set as "-std=gnu++11" option in build configuration

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  template<int _Len>
    struct __aligned_storage_msa
    {
      union __type
      {
	unsigned char __data[_Len];
	struct __attribute__((__aligned__)) { } __align;
      };
    };

  template<int _Len, int _Align =
	   __alignof__(typename __aligned_storage_msa<_Len>::__type)>
    struct aligned_storage
    {
      union type
      {
	unsigned char __data[_Len];
	struct __attribute__((__aligned__((_Align)))) { } __align;
      };
    };

   typename aligned_storage<10, alignof(void*)>::type x; //unable to resolve symbol `type`

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