how do I tell ports that perl5.8 should never be installed?

Matthew Seaman m.seaman at
Mon Mar 1 18:19:43 UTC 2010

Hash: SHA1

On 01/03/2010 17:21:48, Randal L. Schwartz wrote:
>>>>>> "Matthew" == Matthew Seaman <m.seaman at> writes:
> Matthew> For best results, install from ports rather than packages.  If it's
> Matthew> pure-perl code, then this should be hardly more onerous than installing
> Matthew> a compiled package.  XS code however will chew up some CPU cycles.
> I don't mind installing from ports once I've been notified that the package
> won't work because it wants perl5.8.
> What I want is a way to tell the port/package system that perl5.8
> doesn't exist so that it *will* fail.
> How do I do that?

As far as I know, there isn't an official way to do this.  What you
want sounds like a useful addition to the base system to me.

You could do it in a fairly gross hacky way, like the following. This is
entirly untested, might not work at all and will certainly be at the
cost of some alarming error messages:

   # mkdir -p /var/db/pkg/perl-5.8.9_3
   # touch /var/db/pkg/perl-5.8.9_3/+IGNOREME
   # chflags -R noschg /var/db/pkg/perl-5.8.9_3

Hopefully it chucks a spanner in the works before the package system
actually installs anything.  Of course, you'll have to update that if
the perl5.8 port has any sort of version bump[*].

On second thoughts, writing a small wrapper around pkg_add(1) that greps
through the @pkgdep lines in the +CONTENTS file from the package tarball
and bails if it finds the wrong version of perl would be a much cleaner
approach.  The -M (--master) and -S (--slave) flags to pkg_add look
interesting in this context.



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