[v3] define string::pop_back()

[Eric Botcazou]

> Thanks, I'll try to work out the right adjustment for the solaris
> symbols file but can't test it.

The 2 new symbols are duplicated, because they are matched by a regexp:

    ##_ZNSs[0-58-9][g-z]* (glob)
    _ZNSs4nposE;
    _ZNSs4rendEv;
    _ZNSs4swapERSs;
    _ZNSs8pop_backEv;
    _ZNSs9push_backEc;

    ##_ZNSbIwSt11char_traitsIwESaIwEE[0-58-9][g-z]* (glob)
    _ZNSbIwSt11char_traitsIwESaIwEE4nposE;
    _ZNSbIwSt11char_traitsIwESaIwEE4rendEv;
    _ZNSbIwSt11char_traitsIwESaIwEE4swapERS2_;
    _ZNSbIwSt11char_traitsIwESaIwEE8pop_backEv;
    _ZNSbIwSt11char_traitsIwESaIwEE9push_backEw;

so removing the 8 in the regexp seems to be sufficient.

-- 
Eric Botcazou