---
name: "ExtUtils::MakeMaker::CPANfile"
section: "3pm"
platform: "linux"
package: "libextutils-makemaker-cpanfile-perl"
version: "0.09-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/ExtUtils::MakeMaker::CPANfile"
---

# ExtUtils::MakeMaker::CPANfile(3pm)

cpanfile support for EUMM

## NAME

ExtUtils::MakeMaker::CPANfile - cpanfile support for EUMM

## SYNOPSIS

```
    # Makefile.PL
    use ExtUtils::MakeMaker::CPANfile;

    WriteMakefile(
      NAME => 'Foo::Bar',
      AUTHOR => 'A.U.Thor <author@cpan.org>',
    );

    # cpanfile
    requires 'ExtUtils::MakeMaker' => '6.17';
    on test => sub {
      requires 'Test::More' => '0.88';
    };
```

## DESCRIPTION

ExtUtils::MakeMaker::CPANfile loads `"cpanfile"` in your distribution and modifies parameters for `"WriteMakefile"` in your Makefile.PL. Just use it instead of ExtUtils::MakeMaker (which should be loaded internally), and prepare `"cpanfile"`.

As of version 0.03, ExtUtils::MakeMaker::CPANfile also removes WriteMakefile parameters that the installed version of ExtUtils::MakeMaker doesn't know, to avoid warnings.

## LIMITATION

### complex version ranges

As of this writing, complex version ranges are simply ignored.

### dynamic config

Strictly speaking, `"cpanfile"` is a Perl script, and may have some conditions in it. That said, you don't need to run Makefile.PL to determine prerequisites in most cases. Hence, as of 0.06, ExtUtils::MakeMaker::CPANfile sets `"dynamic_config"` to false by default. If you do need a CPAN installer to run Makefile.PL to customize prerequisites dynamically, set `"dynamic_config"` to true explicitly (via META\_ADD/META\_MERGE).

## FOR MODULE AUTHORS

Though the minimum version requirement of ExtUtils::MakeMaker is arbitrary set to 6.17 (the one bundled in Perl 5.8.1), you need at least EUMM 6.52 (with CONFIGURE\_REQUIRES support) when you release a distribution.

## LICENSE

Copyright (C) Kenichi Ishigaki.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

## AUTHOR

Kenichi Ishigaki \<ishigaki@cpan.org\>