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Re^3: PDF::Create fails on install

by MidLifeXis (Monsignor)
on Nov 27, 2013 at 14:25 UTC ( #1064624=note: print w/replies, xml ) Need Help??


in reply to Re^2: PDF::Create fails on install
in thread PDF::Create fails on install

This is why you should always declare *all* your pre-requisites in Makefile.PL, even those that you know are pulled in by other pre-reqs, and you should always 'use' *all* the modules you refer to.

Can I assume that you do not mean that you should also list those packages that you do not directly use?

For example, let's assume that I use the Foo::Bar package, and Foo::Bar uses Biz::Bang and Biz::Biff under the hood. I also make a call to Biz::Biff::frobnitz() from within my code. I am assuming that you are saying:

  • I should do a use Biz::Biff.
  • I should list Foo::Bar and Biz::Biff as prerequisites.
I am also assuming that you are not saying that I should list Biz::Bang as a prerequisite, as that is an implementation detail of Foo::Bar, and unrelated to my own code.

I just want to clarify my understanding, since my parser is coming up with two different meanings of your statement. If this is the correct reading of your statement, I agree 100%. As a clarification, I would probably s/your pre-requisites/your direct pre-requisites/.

--MidLifeXis

Replies are listed 'Best First'.
Re^4: PDF::Create fails on install
by DrHyde (Prior) on Nov 28, 2013 at 12:02 UTC
    You assume correctrly.

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[1nickt]: marioroy Yes, I am using it with MCE, as is Discipulus I believe. I was trying to work out how to make a cpanfile that would be smart enough to know which deps to require.
[1nickt]: See this code. (I expected to simply eval loading threads as a check, but weirdness happened with Perlbrew so it's a grep of -V ...)
[choroba]: Config might be better than grepping -V
[Corion]: Also see Config::V, which is less of that hackery, or that hackery hidden in a module ;)
[1nickt]: The problem was with Perlbrew
[Corion]: Whoops - Config::Perl::V
[1nickt]: I found that when using Perlbrew as recommended, with cpanminus in the system perl lib, such tests were failing to detect the data about the perl that was the install destination.

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