Unresolved dependencies with up2date

[g.bragante at tin.it]

Running up2date -uf ona Fedora Core 2 I get the following output:

Fetching Obsoletes list for channel: fedora-core-2...

Fetching Obsoletes list for channel: updates-released-fc2...

Name                                    Version        Rel
----------------------------------------------------------
fam                                     2.6.10         9.FC2
i386
fam-devel                               2.6.10         9.FC2
i386
iiimf-client-lib                        11.4           46.1.svn1587
i386
iiimf-client-lib-devel                  11.4           46.1.svn1587
i386
iiimf-protocol-lib                      11.4           46.1.svn1587
i386
iiimf-protocol-lib-devel                11.4           46.1.svn1587
i386
initscripts                             7.55.1         1
i386
ppp                                     2.4.2          3.FC2.1
i386


Testing package set / solving RPM inter-dependencies...
There was a package dependency problem. The message was:

Unresolvable chain of dependencies:
fam-devel  2.6.10-9.FC2                  requires libselinux-devel

Then no update is performed.
What can I do ?

Thanks
Gianni Bragante