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      About Perl packages in Gentoo &middot; Caught in the Net
    
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  <h1 class="post-title">About Perl packages in Gentoo</h1>
  <span class="post-date">11 Sep 2015</span>
  <p>In this post I wish to explain a bit about Perl related ebuilds in Gentoo and how to update from perl-core to virtual/perl without conflicts.</p>

<p>First of all the core distribution of Perl is included in <a href="https://packages.gentoo.org/package/dev-lang/perl">dev-lang/Perl</a> along with <a href="http://perldoc.perl.org/index-modules-A.html">modules</a>.</p>

<p>The <a href="https://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/perl-core/">perl-core category</a> in portage contains ebuilds for perl modules, some of which are included in the core perl distibution. The perl-core ebuilds overrides the perl-core modules such that you can update them without recompiling dev-lang/Perl.</p>

<p>Each perl-core module has a corrensponding virtual/perl-* package. The virtual category is used by portage when emerging to take into account that a module can be either provided by dev-lang/perl package or found in perl-core category.</p>

<p>So, what to do in case of blocks when upgrading your Gentoo machine?</p>

<p>Perl-cleaner is a package provided to get rid of these blocks and to migrate from perl-core to virtual/perl-*.</p>

<pre class="wp-code-highlight prettyprint linenums:1">emerge perl-cleaner
emerge dev-lang/perl
perl-cleaner --all</pre>

<p>if you still have problems when upgrading @world you add a backtrack option</p>

<pre class="wp-code-highlight prettyprint linenums:1">emerge -uDN --backtrack=30 @world</pre>

<p>or you can unmerge all perl-core packages and then finally upgrade world</p>

<pre class="wp-code-highlight prettyprint linenums:1">emerge --unmerge perl-core/*</pre>

<p>This will remove all perl-core packages that virtual/perl-* packages will bring back if needed.</p>

<p style="text-align: right;">
  Francesco Mecca
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blog 2016-05-01 11:13:57 +02:00			`<!DOCTYPE html>`
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post on fake wright proof 2016-05-03 23:38:08 +02:00



blog 2016-05-01 11:13:57 +02:00





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			`<a href="/" title="Home">Caught in the Net</a>`


			`</h3>`

			`<div class="content container">`
			`<div class="post">`
			`<h1 class="post-title">About Perl packages in Gentoo</h1>`
			`<span class="post-date">11 Sep 2015</span>`
			`<p>In this post I wish to explain a bit about Perl related ebuilds in Gentoo and how to update from perl-core to virtual/perl without conflicts.</p>`

			`<p>First of all the core distribution of Perl is included in <a href="https://packages.gentoo.org/package/dev-lang/perl">dev-lang/Perl</a> along with <a href="http://perldoc.perl.org/index-modules-A.html">modules</a>.</p>`

			`<p>The <a href="https://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/perl-core/">perl-core category</a> in portage contains ebuilds for perl modules, some of which are included in the core perl distibution. The perl-core ebuilds overrides the perl-core modules such that you can update them without recompiling dev-lang/Perl.</p>`

			`<p>Each perl-core module has a corrensponding virtual/perl-* package. The virtual category is used by portage when emerging to take into account that a module can be either provided by dev-lang/perl package or found in perl-core category.</p>`

			`<p>So, what to do in case of blocks when upgrading your Gentoo machine?</p>`

			`<p>Perl-cleaner is a package provided to get rid of these blocks and to migrate from perl-core to virtual/perl-*.</p>`

			`<pre class="wp-code-highlight prettyprint linenums:1">emerge perl-cleaner`
			`emerge dev-lang/perl`
			`perl-cleaner --all</pre>`

			`<p>if you still have problems when upgrading @world you add a backtrack option</p>`

			`<pre class="wp-code-highlight prettyprint linenums:1">emerge -uDN --backtrack=30 @world</pre>`

			`<p>or you can unmerge all perl-core packages and then finally upgrade world</p>`

			`<pre class="wp-code-highlight prettyprint linenums:1">emerge --unmerge perl-core/*</pre>`

			`<p>This will remove all perl-core packages that virtual/perl-* packages will bring back if needed.</p>`

			`<p style="text-align: right;">`
			`Francesco Mecca`
			`</p>`

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lifehacks2 2016-05-16 11:52:48 +02:00			`<a href="/pescewanda/2016/05/16/lifehacks2/">`
			`Lifehacks (2)`
			`<small>16 May 2016</small>`
blog 2016-05-01 11:13:57 +02:00			`</a>`
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lifehacks2 2016-05-16 11:52:48 +02:00			`<a href="/pescewanda/2016/05/15/genetic-alg/">`
			`Interpolation using a genetic algorithm`
			`<small>15 May 2016</small>`
blog 2016-05-01 11:13:57 +02:00			`</a>`
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lifehacks2 2016-05-16 11:52:48 +02:00			`<a href="/pescewanda/2016/05/03/satoshisignature/">`
			`Why Wright's proof is a fake`
			`<small>03 May 2016</small>`
blog 2016-05-01 11:13:57 +02:00			`</a>`
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