apt-get install php4

["Nicolas C." <ncharretier@altern.org>]

Bonjour,

apt-get refuse d'installer php4 :
---------------------------------------------------------------------
# apt-get install php4
Reading Package Lists... Done
Building Dependency Tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

Sorry, but the following packages have unmet dependencies:
  php4: Depends: libbz2-1.0 but it is not going to be installed
        Depends: libc6 (>= 2.2.4-4) but it is not going to be installed
        Depends: libdb2 (>= 2:2.7.7-4) but it is not going to be installed
        Depends: libexpat1 (>= 1.95.2-6) but it is not going to be installed
        Depends: libmm11 but it is not going to be installed
        Depends: libpam0g (>= 0.72-1) but it is not going to be installed
        Depends: libpcre3 but it is not going to be installed
        Depends: zlib1g (>= 1:1.1.4) but it is not going to be installed
        Depends: apache-common (>= 1.3.23) but it is not going to be
installed
        Depends: fileutils (>= 4.0-5)
E: Sorry, broken packages
---------------------------------------------------------------------

J'ai essayé d'installer libbz2-1.0 et voici le résultat :
---------------------------------------------------------------------
# apt-get install libbz2-1.0
Reading Package Lists... Done
Building Dependency Tree... Done
Sorry, libbz2-1.0 is already the newest version.
0 packages upgraded, 0 newly installed, 0 to remove and 4  not upgraded.
---------------------------------------------------------------------

Comment puis-je vérfier s'il s'agit d'une situation impossible ou si
c'est que certains paquets ne sont pas encore disponibles en version
instable ?

Et selon le cas dans lequel je me trouve, qu'est-il possible de faire
pour contourner le problème ?

Notez que mon ordi est à jour (j'ai effectué un "apt-get update &&
apt-get upgrade && apt-get dist-upgrade")