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Dave Rolsky > Dist-Zilla-Plugin-Conflicts-0.18 > Dist::Zilla::Plugin::Conflicts



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Module Version: 0.18   Source   Latest Release: Dist-Zilla-Plugin-Conflicts-0.19


Dist::Zilla::Plugin::Conflicts - Declare conflicts for your distro


version 0.18


In your dist.ini:

  Foo::Bar = 0.05
  Thing    = 2


This module lets you declare conflicts on other modules (usually dependencies of your module) in your dist.ini.

Declaring conflicts does several thing to your distro.

First, it generates a module named something like Your::Distro::Conflicts. This module will use Dist::CheckConflicts to declare and check conflicts. The package name will be obscured from PAUSE by putting a newline after the package keyword.

All of your runtime prereqs will be passed in the -also parameter to Dist::CheckConflicts.

Second, it adds code to your Makefile.PL or Build.PL to load the generated module and print warnings if conflicts are detected.

Finally, it adds the conflicts to the META.json and/or META.yml files under the "x_breaks" key.


Using this module is simple, add a "[Conflicts]" section and list each module you conflict with:

  Module::X = 0.02

The version listed is the last version that doesn't work. In other words, any version of Module::X greater than 0.02 should work with this release.

The special key -script can also be set, and given the name of a script to generate, as in:

  -script   = bin/foo-conflicts
  Module::X = 0.02

This script will be installed with your module, and can be run to check for currently installed modules which conflict with your module. This allows users an easy way to fix their conflicts - simply run a command such as foo-conflicts | cpanm to bring all of your conflicting modules up to date.

Note: Currently, this plugin only works properly if it is listed in your dist.ini after the plugin which generates your Makefile.PL or Build.PL. This is a limitation of Dist::Zilla that will hopefully be addressed in a future release.



Please report any bugs or feature requests to, or through the web interface at I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.


If you'd like to thank me for the work I've done on this module, please consider making a "donation" to me via PayPal. I spend a lot of free time creating free software, and would appreciate any support you'd care to offer.

Please note that I am not suggesting that you must do this in order for me to continue working on this particular software. I will continue to do so, inasmuch as I have in the past, for as long as it interests me.

Similarly, a donation made in this way will probably not make me work on this software much more, unless I get so many donations that I can consider working on free software full time, which seems unlikely at best.

To donate, log into PayPal and send money to or use the button on this page:


Dave Rolsky <>


Karen Etheridge <>


This software is Copyright (c) 2016 by Dave Rolsky.

This is free software, licensed under:

  The Artistic License 2.0 (GPL Compatible)
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