[patch] Implement move semantics for iostreams

[Jonathan Wakely]

On 23/09/14 15:58 +0200, Rainer Orth wrote:
>This patch broke Solaris bootstrap with Sun ld: when linking
>libstdc++.so, ld complains
>
>ld: fatal: libstdc++-symbols.ver-sun: 4520: symbol 'std::basic_ios<char, std::char_traits<char> >::move(std::basic_ios<char, std::char_traits<char> >&&)': symbol version conflict
>
>and many more.  In that case, I find that this symbols is matched by
>both the GLIBCXX_3.4 and GLIBCXX_3.4.21 patterns:
>
>    GLIBCXX_3.4
>    ##std::basic_i[g-r]* (cxx)
>    _ZNSt9basic_iosIcSt11char_traitsIcEE4moveEOS2_;
>
>    GLIBCXX_3.4.21
>    ##_ZNSt9basic_iosI[cw]St11char_traitsI[cw]EE4moveE[OR]S2_ (glob)
>    _ZNSt9basic_iosIcSt11char_traitsIcEE4moveEOS2_;

Rainer, I think this patch should fix it, could you test it please?

(I tried installing Solaris in a VM but couldn't get it to work, maybe
I should use the VirtualBox image instead of trying qemu/kvm.)


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