perl modules: depend on Perl 5.x instead of Perl 5.8

[pmagrath@…]

p5-net-ssleay relies on a dependency, perl5.8. If perl5.10 is already installed, that version of perl should be used instead of installing perl5.8 as well.

[jmroot (Joshua Root)]

This behaviour is common to all ports that use the perl5 portgroup.

[raimue (Rainer Müller)]

The perl5 port group uses the version of perl which is available at ${prefix}/bin/perl.

So as an immediate workaround(!) you can use this approach:

sudo port install perl5.10
sudo ln -sf /opt/local/bin/perl5.10.0 /opt/local/bin/perl
sudo port -fn upgrade p5-*

This should make all p5-* ports use perl5.10 instead of perl5.8. Note that this will break as soon as you upgrade perl5.8 as it will restore the /opt/local/bin/perl symlink.

[afb@…]

This behaviour is also in the Python ports, but even worse there since it needs one port for each language version (i.e. py-foo requires python24 and py25-foo requires python25). You can also see it with X11 ports requiring XFree86, but there it is a library dependency so having another X server install will also work - compare bin:perl:perl5.8

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

It was decided to have only one perl5 port control ${prefix}/bin/perl.
See #16830.