Bug #28036 for Carp-Clan: Circular dependency between Carp::Clan and Object::Deadly

Sat Jul 07 17:47:04 2007 mschwern [...] cpan.org - Ticket created

Subject:

Circular dependency between Carp::Clan and Object::Deadly

Carp::Clan can optionally depend on Object::Deadly for testing. But if you do so this causes a circular dependency between Carp::Clan and Object::Deadly. CPAN.pm: Going to build J/JJ/JJORE/Carp-Clan-5.9.tar.gz Add Object::Deadly 0.08+ to prerequisites for testing? [Ny] [no] yes Checking if your kit is complete... Looks good Warning: prerequisite Object::Deadly 0.08 not found. Writing Makefile for Carp::Clan Show quoted text

---- Unsatisfied dependencies detected during ---- ---- JJORE/Carp-Clan-5.9.tar.gz ---- Object::Deadly [requires] ...later... CPAN.pm: Going to build J/JJ/JJORE/Object-Deadly-0.09.tar.gz Checking if your kit is complete... Looks good Warning: prerequisite Carp::Clan 5.4 not found. Warning: prerequisite Devel::StackTrace 0 not found. Warning: prerequisite Devel::Symdump 0 not found. Writing Makefile for Object::Deadly

---- Unsatisfied dependencies detected during ---- ---- JJORE/Object-Deadly-0.09.tar.gz ---- Devel::StackTrace [requires] Carp::Clan [requires] Devel::Symdump [requires] Recursive dependency detected: Carp::Clan (have: N/A; want: 5.9) => JJORE/Carp-Clan-5.9.tar.gz => Object::Deadly (have: N/A; requires: 0.08) => JJORE/Object-Deadly-0.09.tar.gz => Carp::Clan (have: N/A; requires: 5.4). Cannot resolve. JJORE/Object-Deadly-0.09.tar.gz [depend] -- NOT OK

Sat Jul 07 21:26:57 2007 jjore [...] cpan.org - Correspondence added

From:

JJORE [...] cpan.org

On Sat Jul 07 17:47:04 2007, MSCHWERN wrote: Show quoted text

> Carp::Clan can optionally depend on Object::Deadly for testing. But if > you do so this causes a circular dependency between Carp::Clan and > Object::Deadly.

Right. Don't do that. Object::Deadly uses Carp::Clan during runtime and Carp::Clan can use Object::Deadly for testing. Obviously you can't use it for testing until you've installed it. I'd resolve this ticket with "working as designed" if I had RT permissions to this queue. Josh

Sat Jul 07 21:26:58 2007 The RT System itself - Status changed from 'new' to 'open'

Sun Jul 08 00:09:49 2007 schwern [...] pobox.com - Correspondence added

Subject:	Re: [rt.cpan.org #28036] Circular dependency between Carp::Clan and Object::Deadly
Date:	Sat, 07 Jul 2007 21:09:29 -0700
To:	bug-Carp-Clan [...] rt.cpan.org
From:	Michael G Schwern <schwern [...] pobox.com>

via RT wrote: Show quoted text

> <URL: http://rt.cpan.org/Ticket/Display.html?id=28036 > > > On Sat Jul 07 17:47:04 2007, MSCHWERN wrote:

>> Carp::Clan can optionally depend on Object::Deadly for testing. But if >> you do so this causes a circular dependency between Carp::Clan and >> Object::Deadly.

> > Right. Don't do that. Object::Deadly uses Carp::Clan during runtime and > Carp::Clan can use Object::Deadly for testing. Obviously you can't use > it for testing until you've installed it.

If I shouldn't do it why does Carp::Clan offer the option? $ perl Makefile.PL Add Object::Deadly 0.08+ to prerequisites for testing? [Ny] [no]

Sun Jul 08 12:17:36 2007 twists [...] gmail.com - Correspondence added

Subject:	Re: [rt.cpan.org #28036] Circular dependency between Carp::Clan and Object::Deadly
Date:	Sun, 8 Jul 2007 09:17:21 -0700
To:	bug-Carp-Clan [...] rt.cpan.org
From:	"Joshua ben Jore" <twists [...] gmail.com>

On 7/7/07, Michael G Schwern via RT <bug-Carp-Clan@rt.cpan.org> wrote: Show quoted text

> > Queue: Carp-Clan > Ticket <URL: http://rt.cpan.org/Ticket/Display.html?id=28036 > > > via RT wrote:

> > <URL: http://rt.cpan.org/Ticket/Display.html?id=28036 > > > > > On Sat Jul 07 17:47:04 2007, MSCHWERN wrote:

> >> Carp::Clan can optionally depend on Object::Deadly for testing. But if > >> you do so this causes a circular dependency between Carp::Clan and > >> Object::Deadly.

> > > > Right. Don't do that. Object::Deadly uses Carp::Clan during runtime and > > Carp::Clan can use Object::Deadly for testing. Obviously you can't use > > it for testing until you've installed it.

> > If I shouldn't do it why does Carp::Clan offer the option?

Ok, I admit I'm hazy about why it could make sense to have an installed module listed as a prerequisite. You can't answer "yes, Object::Deadly is a prerequisite" unless you already have it installed. When I wrote that I thought I was getting something out of the loop but can't recall my reasons now. I guess I don't mind removing the question since it doesn't really make any sense. Josh

Sun Jul 08 15:10:21 2007 schwern [...] pobox.com - Correspondence added

Subject:	Re: [rt.cpan.org #28036] Circular dependency between Carp::Clan and Object::Deadly
Date:	Sun, 08 Jul 2007 12:09:47 -0700
To:	bug-Carp-Clan [...] rt.cpan.org
From:	Michael G Schwern <schwern [...] pobox.com>

Joshua ben Jore via RT wrote: Show quoted text

> Ok, I admit I'm hazy about why it could make sense to have an > installed module listed as a prerequisite. You can't answer "yes, > Object::Deadly is a prerequisite" unless you already have it > installed. When I wrote that I thought I was getting something out of > the loop but can't recall my reasons now. I guess I don't mind > removing the question since it doesn't really make any sense.

Cool, thanks.

Thu Jan 10 12:46:26 2008 colin.fine [...] pace.co.uk - Correspondence added

From:

colin.fine [...] pace.co.uk

On Sun Jul 08 12:17:36 2007, twists@gmail.com wrote: Show quoted text

> On 7/7/07, Michael G Schwern via RT <bug-Carp-Clan@rt.cpan.org> wrote:

> > > > Queue: Carp-Clan > > Ticket <URL: http://rt.cpan.org/Ticket/Display.html?id=28036 > > > > > via RT wrote:

> > > <URL: http://rt.cpan.org/Ticket/Display.html?id=28036 > > > > > > > On Sat Jul 07 17:47:04 2007, MSCHWERN wrote:

> > >> Carp::Clan can optionally depend on Object::Deadly for testing.

But if Show quoted text

> > >> you do so this causes a circular dependency between Carp::Clan and > > >> Object::Deadly.

> > > > > > Right. Don't do that. Object::Deadly uses Carp::Clan during

runtime and Show quoted text

> > > Carp::Clan can use Object::Deadly for testing. Obviously you can't use > > > it for testing until you've installed it.

> > > > If I shouldn't do it why does Carp::Clan offer the option?

> > Ok, I admit I'm hazy about why it could make sense to have an > installed module listed as a prerequisite. You can't answer "yes, > Object::Deadly is a prerequisite" unless you already have it > installed. When I wrote that I thought I was getting something out of > the loop but can't recall my reasons now. I guess I don't mind > removing the question since it doesn't really make any sense. > > Josh

Please do! If I had raised this issue, I would not have listed it as 'unimportant'. All I was trying to do was install DBIx::Class. In among the dozens of dependencies it asked me to add were these two, and of course I just said yes (why would you ever say no?). Lo and behold, the install failed. I am not an expert CPANner, even if I do have a PAUSE account, and if a module won't install, it's a big deal, especially when it's the 'make' phase that fails, not the 'test'. I looked at the source, and couldn't see a reference to Object::Deadly in Carp::Clan, so I guessed it must be in a test. But it is really very unhelpful.

Thu Oct 08 08:42:54 2009 STBEY [...] cpan.org - Given to JJORE

Wed Jun 05 07:02:32 2013 dsteinbrunner [...] pobox.com - Correspondence added

From:

dsteinbrunner [...] pobox.com

On Sun Jul 08 12:17:36 2007, twists@gmail.com wrote: Show quoted text

> I guess I don't mind > removing the question since it doesn't really make any sense.

According to this from the Changes file: Version 5.10 10.01.2008 + Removed the circular dependency on Object::Deadly. It was only used for testing and would only succeed if you already had O::D installed. This ticket should be closed.

Sun Dec 02 16:30:10 2018 ether [...] cpan.org - Status changed from 'open' to 'resolved'

Sun Dec 02 16:30:11 2018 ether [...] cpan.org - Fixed in 5.10 added