cannot aptitude -t experimental install perl

[jidanni@jidanni.org]

Gentlemen, I find no way to install the experimental version of perl.

# aptitude -t experimental install ~i~nperl
The following packages will be upgraded:
  perl  perl-base  perl-doc  perl-modules
4 packages upgraded, 0 newly installed, 0 to remove and 89 not upgraded.
The following packages have unmet dependencies:
  libcrypt-ssleay-perl: Depends: perlapi-5.10.0 which is a virtual package.
  libparams-validate-perl: Depends: perlapi-5.10.1 which is a virtual package.
  liblocale-gettext-perl: PreDepends: perlapi-5.10.0 which is a virtual package.
  libperl5.10: Depends: perl-base (= 5.10.1-17) but 5.12.3-1 is to be installed.
  libunicode-string-perl: Depends: perlapi-5.10.0 which is a virtual package.
etc.

It gets tangled up with too many paths perl-base -> perlapi-* etc.