Bug#795921: libgconfmm-2.6-1c2: transition needed for g++-5 ABI

[Simon McVittie]

Package: libgconfmm-2.6-1c2
Version: 2.28.0-1.1
Severity: important

gconfmm2.6.4 is yet another C++ package that needs a transition to the
g++-5 ABI. See the similar glibmm bug for all the tedious details.

Matthias' build logs mention, for instance,

000000000000d5d0 g    DF .text	000000000000000b  Base        Gnome::Conf::Schema::set_locale(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
000000000000d690 g    DF .text	00000000000000da  Base        Gnome::Conf::Schema::get_locale[abi:cxx11]() const

Starting this is blocked by starting the equivalent gtkmm2.4 transition.

    S