build/posts/Building_rbenv_on_OpenBSD_7.5/index.html


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<h1 id="building-rbenv-on-openbsd-7.5">Building rbenv on OpenBSD 7.5</h1>
<p>2024-06-02</p>
<p>I use Ruby (specifically with Jekyll) for a lot of my clubs&#47;projects while using my personal laptop (<a href="/posts/x220/">X220 ThinkPad</a>) which is runs OpenBSD. Since I recently upgraded to OpenBSD 7.5 I thought it could be helpful for others if I shared my process of building and using <code>rbenv</code> to install different Ruby versions.</p>
<h2 id="before-we-build">Before We Build</h2>
<p>First, be sure to install the required packages in order to build from source, and then clone the core <code>rbenv</code> repo:</p>
<pre><code>pkg_add git gcc gmake libffi libyaml openssl
git clone https:&#47;&#47;github.com&#47;rbenv&#47;rbenv.git ~&#47;.rbenv
</code></pre>
<h2 id="building-">Building <code>rbenv</code></h2>
<p>Add <code>rbenv</code> to your PATH and initialize it (place this inside your <code>.bashrc</code> or <code>.zshrc</code> etc):</p>
<pre><code>export PATH="$HOME&#47;.rbenv&#47;bin:$PATH"
export PATH="$HOME&#47;.rbenv&#47;shims:$PATH"
export RUBY_CONFIGURE_OPTS="--with-openssl-dir=&#47;usr&#47;local"
eval "$(rbenv init -)"
</code></pre>
<p>Then reload your shell (zsh in this example): </p>
<pre><code>source ~&#47;.zshrc
</code></pre>
<p>Next we will need to install <code>ruby-build</code> as a <code>rbenv</code> plugin. Clone the ruby-build repository into the rbenv plugins directory:</p>
<pre><code>git clone https:&#47;&#47;github.com&#47;rbenv&#47;ruby-build.git ~&#47;.rbenv&#47;plugins&#47;ruby-build
</code></pre>
<h2 id="installing-ruby-and-setting-our-version">Installing Ruby and Setting Our Version</h2>
<p>Now use <code>rbenv</code> to install the desired version of Ruby (we will get an older version for this example):</p>
<pre><code>rbenv install 3.3.0
</code></pre>
<p>If you run into issues, you may need to specify your openssl directory:</p>
<pre><code>RUBY_CONFIGURE_OPTS="--with-openssl-dir=&#47;usr&#47;local" rbenv install 3.3.0
</code></pre>
<p>If you&#8217;re on a slower machine (like mine) this might take a little bit. Just grab a coffee or a snack while you wait!</p>
<p>Then navigate to your project of choice and set the <code>local</code> Ruby version:</p>
<pre><code>rbenv local 3.3.0
</code></pre>
<p>That&#8217;s it! If you&#8217;d prefer to set this version of Ruby for all projects going forward, simply replace <code>local</code> with <code>global</code>.</p>
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