Bug#681026: perl-modules: Installation of modules via CPAN fails due to broken dependency logic

[Niko Tyni]

On Wed, Apr 17, 2013 at 10:19:11AM +0200, Vincent Lefevre wrote:
> On 2013-04-17 09:38:32 +0300, Niko Tyni wrote:
> > On Wed, Apr 17, 2013 at 01:55:48AM +0200, Vincent Lefevre wrote:

> > > lib/perl5/<archname> doesn't exist yet initially, but I'd say
> > > that's up to cpan to add it automatically when necessary.
> > 
> > I wouldn't FWIW, but that's for upstream to decide. I certainly won't
> > add a Debian deviation to do that.
> 
> OK. Alternatively, it could be decided to add architecture-specific
> directories whether they exist or not at interpreter startup time.

Yes, that would fix it, at a cost of wasted stat() calls on module
loading until the directory actually gets created.

> > I note that newest versions of local::lib no longer suggest putting the
> > arch-specific directory in PERL5LIB, precisely because Perl includes
> > it automatically. I suspect this bootstrapping issue with nonexistent
> > directories is not widely understood.
> 
> Do you mean that architecture-specific directories are added even if
> they don't exist at interpreter startup time?

I just meant that the newest changes in local::lib probably make things
worse wrt. this issue.
-- 
Niko Tyni   ntyni at debian.org