<p></p>
<p dir="auto">Ubuntu 22.04, ruby 3.0.6 installed with rbenv</p>
<pre class="notranslate"><code class="notranslate">Installing mini_racer 0.8.0 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    current directory: /home/tony/.rbenv/versions/3.0.6/lib/ruby/gems/3.0.0/gems/mini_racer-0.8.0/ext/mini_racer_extension
/home/tony/.rbenv/versions/3.0.6/bin/ruby -I /home/tony/.rbenv/versions/3.0.6/lib/ruby/3.0.0 -r ./siteconf20231123-6495-iz864j.rb extconf.rb
checking for -lpthread... yes
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=/home/tony/.rbenv/versions/3.0.6/bin/$(RUBY_BASE_NAME)
        --with-pthread-dir
        --without-pthread-dir
        --with-pthread-include
        --without-pthread-include=${pthread-dir}/include
        --with-pthread-lib
        --without-pthread-lib=${pthread-dir}/lib
        --with-pthreadlib
        --without-pthreadlib
        --enable-debug
        --disable-debug
        --enable-asan
        --disable-asan
/home/tony/.rbenv/versions/3.0.6/lib/ruby/3.0.0/psych.rb:457:in `parse_stream': undefined method `parse' for #<Psych::Parser:0x000056046bb5e238
@handler=#<Psych::Handlers::DocumentStream:0x000056046bb5e350 @stack=[], @last=nil, @root=nil, @start_line=nil, @start_column=nil, @end_line=nil, @end_column=nil, @block=#<Proc:0x000056046bb5e288
/home/tony/.rbenv/versions/3.0.6/lib/ruby/3.0.0/psych.rb:391>>, @external_encoding=0> (NoMethodError)
        from /home/tony/.rbenv/versions/3.0.6/lib/ruby/3.0.0/psych.rb:391:in `parse'
        from /home/tony/.rbenv/versions/3.0.6/lib/ruby/3.0.0/psych.rb:280:in `unsafe_load'
        from /home/tony/.rbenv/versions/3.0.6/lib/ruby/gems/3.0.0/gems/libv8-node-18.16.0.0-x86_64-linux/ext/libv8-node/location.rb:21:in `block in load!'
        from /home/tony/.rbenv/versions/3.0.6/lib/ruby/gems/3.0.0/gems/libv8-node-18.16.0.0-x86_64-linux/ext/libv8-node/location.rb:20:in `open'
        from /home/tony/.rbenv/versions/3.0.6/lib/ruby/gems/3.0.0/gems/libv8-node-18.16.0.0-x86_64-linux/ext/libv8-node/location.rb:20:in `load!'
        from /home/tony/.rbenv/versions/3.0.6/lib/ruby/gems/3.0.0/gems/libv8-node-18.16.0.0-x86_64-linux/lib/libv8/node.rb:8:in `configure_makefile'
        from extconf.rb:77:in `<main>'

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /home/tony/.rbenv/versions/3.0.6/lib/ruby/gems/3.0.0/extensions/x86_64-linux/3.0.0/mini_racer-0.8.0/mkmf.log

extconf failed, exit code 1
</code></pre>
<p dir="auto">Works fine after <code class="notranslate">gem update --system</code>.</p>
<p dir="auto">I had to do something with psych before but I don't remember if it was on this machine or on another one, also Ubuntu 22.04, ruby 3.0.2, don't remember if it's system default ruby.</p>

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