Re: [patch] Implement move semantics for iostreams

[Jonathan Wakely <jwakely at redhat dot com>]

On 25/09/14 13:05 +0200, Rainer Orth wrote:
> Hi Jonathan,
>
> > > almost there: now I only get
> > >
> > > ld: fatal: libstdc++-symbols.ver-sun: 4622: symbol 'std::basic_ostream<wchar_t, std::char_traits<wchar_t> >::basic_ostream(std::basic_iostream<wchar_t, std::char_traits<wchar_t> >&)': symbol version conflict
> > > ld: fatal: libstdc++-symbols.ver-sun: 4623: symbol 'std::basic_ostream<wchar_t, std::char_traits<wchar_t> >::basic_ostream(std::basic_iostream<wchar_t, std::char_traits<wchar_t> >&)': symbol version conflict
> > >
> > > from
> > >
> > >  GLIBCXX_3.4:
> > >
> > >    ##_ZNSt13basic_ostreamIwSt11char_traitsIwEEC[12]E[RP]* (glob)
> > >    _ZNSt13basic_ostreamIwSt11char_traitsIwEEC1ERSt14basic_iostreamIwS1_E;
> > >    _ZNSt13basic_ostreamIwSt11char_traitsIwEEC2ERSt14basic_iostreamIwS1_E;
> > >
> > >  GLIBCXX_3.4.21:
> > >
> > >    ##_ZNSt13basic_ostreamIwSt11char_traitsIwEEC[12]ERSt14basic_iostreamIwS1_E (glob)
> > >    _ZNSt13basic_ostreamIwSt11char_traitsIwEEC1ERSt14basic_iostreamIwS1_E;
> > >    _ZNSt13basic_ostreamIwSt11char_traitsIwEEC2ERSt14basic_iostreamIwS1_E;
> >
> > Doh, yes, this additional tweak should solve that:
> >
> > index f736240..95fc3c7 100644
> > --- a/libstdc++-v3/config/abi/pre/gnu.ver
> > +++ b/libstdc++-v3/config/abi/pre/gnu.ver
> > @@ -460,7 +460,7 @@ GLIBCXX_3.4 {
> >
> >     # std::basic_ostream<wchar_t>
> >     _ZNSt13basic_ostreamIwSt11char_traitsIwEEC[12]Ev;
> > -    _ZNSt13basic_ostreamIwSt11char_traitsIwEEC[12]E[RP]*;
> > +    _ZNSt13basic_ostreamIwSt11char_traitsIwEEC[12]EP*;
> >     _ZNSt13basic_ostreamIwSt11char_traitsIwEED*;
> >     _ZNKSt13basic_ostreamIwSt11char_traitsIwEE[0-9][a-z]*;
> >     _ZNSt13basic_ostreamIwSt11char_traitsIwEE3putEw;
>
> it does: {i386-pc, sparc-sun}-solaris2.1[01] bootstraps completed
> successfully with it.

Great. I hope the slightly-modified version I eventually checked in
still works too :)