I tried building gnome26 using jhbuild.
I get the following error when building gnome-vfsmm. I tried solving it, but I
have the impression that there is some incompatibilities between the last
versions of glibmm and gnome-vfsmm.
Something has changed... I am sorry, I don't master the thing enough to solve it :(

Here is the error

In file included from async-handle.cc:402:
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h: In function `GList*
Glib::Container_Helpers::create_list(Bi, Bi, Tr) [with Bi =
Glib::Container_Helpers::ListHandleIterator<Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FileInfoResult*>
>, Tr = Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FileInfoResult>]':
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h:83:   instantiated from
`static GList* Glib::Container_Helpers::ListSourceTraits<Tr,
Cont>::get_data(const Cont&) [with Tr =
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FileInfoResult>, Cont =
Glib::ListHandle<Gnome::Vfs::FileInfoResult*,
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FileInfoResult*> >]'
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h:293:   instantiated from
`Glib::ListHandle<T, Tr>::ListHandle(const Cont&) [with Cont =
Glib::ListHandle<Gnome::Vfs::FileInfoResult*,
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FileInfoResult*> >, T =
Gnome::Vfs::FileInfoResult, Tr =
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FileInfoResult>]'
/home2/garnome/include/sigc++-2.0/sigc++/functors/slot.h:571:   instantiated
from `T_return sigc::slot2<T_return, T_arg1, T_arg2>::operator()(typename
sigc::type_trait<T_derived>::take, typename sigc::type_trait<T_arg3>::take)
const [with T_return = void, T_arg1 = const Gnome::Vfs::Async::Handle&, T_arg2 =
Glib::ListHandle<Gnome::Vfs::FileInfoResult,
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FileInfoResult> >]'
async-handle.cc:402:   instantiated from here
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h:47: error: no match for
'operator--' in '--pend'
In file included from async-handle.cc:542:
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h: In function `GList*
Glib::Container_Helpers::create_list(Bi, Bi, Tr) [with Bi =
Glib::Container_Helpers::ListHandleIterator<Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FindDirectoryResult*>
>, Tr = Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FindDirectoryResult>]':
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h:83:   instantiated from
`static GList* Glib::Container_Helpers::ListSourceTraits<Tr,
Cont>::get_data(const Cont&) [with Tr =
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FindDirectoryResult>, Cont =
Glib::ListHandle<Gnome::Vfs::FindDirectoryResult*,
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FindDirectoryResult*> >]'
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h:293:   instantiated from
`Glib::ListHandle<T, Tr>::ListHandle(const Cont&) [with Cont =
Glib::ListHandle<Gnome::Vfs::FindDirectoryResult*,
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FindDirectoryResult*> >, T =
Gnome::Vfs::FindDirectoryResult, Tr =
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FindDirectoryResult>]'
/home2/garnome/include/sigc++-2.0/sigc++/functors/slot.h:571:   instantiated
from `T_return sigc::slot2<T_return, T_arg1, T_arg2>::operator()(typename
sigc::type_trait<T_derived>::take, typename sigc::type_trait<T_arg3>::take)
const [with T_return = void, T_arg1 = const Gnome::Vfs::Async::Handle&, T_arg2 =
Glib::ListHandle<Gnome::Vfs::FindDirectoryResult,
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FindDirectoryResult> >]'
async-handle.cc:542:   instantiated from here
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h:47: error: no match for
'operator--' in '--pend'
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h: In destructor
`Glib::ListHandle<T, Tr>::~ListHandle() [with T = Gnome::Vfs::FileInfoResult, Tr
= Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FileInfoResult>]':
async-handle.cc:402:   instantiated from here
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h:320: error: invalid
static_cast from type `void*' to type `Gnome::Vfs::FileInfoResult'
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h: In destructor
`Glib::ListHandle<T, Tr>::~ListHandle() [with T =
Gnome::Vfs::FindDirectoryResult, Tr =
Glib::Container_Helpers::TypeTraits<Gnome::Vfs::FindDirectoryResult>]':
async-handle.cc:542:   instantiated from here
/home2/garnome/include/glibmm-2.3/glibmm/listhandle.h:320: error: invalid
static_cast from type `void*' to type `Gnome::Vfs::FindDirectoryResult'
make[4]: *** [async-handle.lo] Erreur 1