Undefined reference

[Paolo Carlini]

Ulrich Weigand wrote:

>Hello,
>
>I'm again getting undefined references in the libstdc++ test suite
>(this time 21_strings/basic_string/cons/wchar_t/2.cc).  The symbol is
>
>std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >::_S_construct(unsigned long, wchar_t, std::allocator<wchar_t> const&)
>
>Is this again a problem with the version script?
>
Hi,
we are all getting it, on the various wchar_t enabled platforms.
Both 3.2 and 3.3 have no problem with this new wchar_t test, constituted 
basically by a single line:

    std::wstring s(10, 0);

Notice that there are no differences in the basic_string code itself 
present in the various branches (3.2, 3.3 and 3.4) and the problem 
appear at link time and only for dynamic linking, therefore probably 
your guess is correct. Unfortunately I haven't made much progress yet in 
trying to understand what is going wrong.

Do you have any hints?

Paolo.