Initializing of vector<const string> fails - gcc bug?

Hi,

I cannot initialize a vector of const string elements with gcc-4.8.2 -std=c++11
The example below will be compiled if 'const string' is replaced by 'string'.

Is this a gcc bug or a restriction of the C++11 standard?

Many thanks for a hint,
Helmut

#include <string>
using std::string;

#include <vector>

int main() { // compiled with std=c++11 using gcc-4.8.2

  std::vector<const string> Labels= {"A","B"};
}

/* I have removed '/usr/lib/gcc/x86_64-pc-linux-gnu/4.8.2/include'
    at the beginning of the error messages below
In file included
from x86_64-pc-linux-gnu/bits/c++allocator.h:33:0,
from bits/allocator.h:46,
from string:41,
from Vector_init_const_string.C:1:
ext/new_allocator.h: In instantiation of
 'struct __gnu_cxx::new_allocator<const std::basic_string<char> >':
....
Vector_init_const_string.C:8:29:
   required from here
ext/new_allocator.h:93:7: error:
  'const _Tp* __gnu_cxx::new_allocator<_Tp>::
   address(__gnu_cxx::new_allocator<_Tp>::const_reference) const
      [with _Tp = const std::basic_string<char>;
      __gnu_cxx::new_allocator<_Tp>::const_pointer
      = const std::basic_string<char>*; __gnu_cxx::new_allocator<_Tp>::const_reference
      = const std::basic_string<char>&]' cannot be overloaded
       address(const_reference __x) const _GLIBCXX_NOEXCEPT

ext/new_allocator.h:89:7: error:
  with '_Tp* __gnu_cxx::new_allocator<_Tp>::address(__gnu_cxx::new_allocator<_Tp>::reference)
        const [with _Tp = const std::basic_string<char>; __gnu_cxx::new_allocator<_Tp>::pointer
        = const std::basic_string<char>*; __gnu_cxx::new_allocator<_Tp>::reference = const std::basic_string<char>&]'
       address(reference __x) const _GLIBCXX_NOEXCEPT

ext/new_allocator.h: In instantiation of
  'void __gnu_cxx::new_allocator<_Tp>::deallocate(__gnu_cxx::new_allocator<_Tp>::pointer,
   __gnu_cxx::new_allocator<_Tp>::size_type)
      [with _Tp = const std::basic_string<char>;
    __gnu_cxx::new_allocator<_Tp>::pointer
     = const std::basic_string<char>*;
     __gnu_cxx::new_allocator<_Tp>::size_type = long unsigned int]':
....
Vector_init_const_string.C:8:45: required from here
ext/new_allocator.h:110:30: error: invalid conversion from 'const void*' to 'void*' [-fpermissive]
       { ::operator delete(__p); }

In file included
from ext/new_allocator.h:33:0,
....
from string:41,
from Vector_init_const_string.C:1:
new:95:6: error: initializing argument 1 of 'void operator delete(void*)' [-fpermissive]
 void operator delete(void*) _GLIBCXX_USE_NOEXCEPT

In file included
  from vector:62:0,
  from Vector_init_const_string.C:4:
....
Vector_init_const_string.C:8:45: required from here

bits/stl_construct.h:75:7: error:
  invalid static_cast from type 'const std::basic_string<char>*' to type 'void*'
     { ::new(static_cast<void*>(__p)) _T1(std::forward<_Args>(__args)...); }
*/

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