rbenv install 3.1.4 fails on Linux Mint Linux Mint 20.2 - The Ruby yaml extension was not compiled.

[rioug]

System : Linux Mint 20.2 Uma 64-bit

• I have updated rbenv and ruby build by git pulling.
• I tried installing the recommended missing dependency (They were already installed) apt-get install -y libssl-dev libreadline-dev zlib1g-dev libyaml-dev
• I tried installing ruby-psych
• I tried reinstalling libyaml and libyaml-dev

Last 10 log lines:

To eliminate this warning, please install libyaml and reinstall your ruby.
The Ruby yaml extension was not compiled.
ERROR: Ruby install aborted due to missing extensions
Try running `apt-get install -y libssl-dev libreadline-dev zlib1g-dev libyaml-dev` to fetch missing dependencies.

Configure options used:
  --prefix=/home/gaetan/.rbenv/versions/3.1.4
  --enable-shared
  LDFLAGS=-L/home/gaetan/.rbenv/versions/3.1.4/lib 
  CPPFLAGS=-I/home/gaetan/.rbenv/versions/3.1.4/include 

Full log : https://gist.github.com/rioug/5697bb17168e1f7391ac5a31309716b1

Thanks !

[mislav]

Hi, do you have GEM_HOME set in your environment variables by any chance?

You can try deleting that value and retrying the installation, like so:

GEM_HOME="" rbenv install 3.1.4

[rioug]

I do indeed ! That fixed it thanks !

It's still causing me trouble if I try to do bundle install I get :

<internal:/home/gaetan/.rbenv/versions/3.1.4/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require': incompatible library version - /home/gaetan/.ruby/gems/pathname-0.2.1/lib/pathname.so (LoadError)
	from <internal:/home/gaetan/.rbenv/versions/3.1.4/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from /home/gaetan/.ruby/gems/pathname-0.2.1/lib/pathname.rb:13:in `<top (required)>'
	from <internal:/home/gaetan/.rbenv/versions/3.1.4/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from <internal:/home/gaetan/.rbenv/versions/3.1.4/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from /home/gaetan/.ruby/gems/bundler-2.4.14/lib/bundler.rb:4:in `<top (required)>'
	from <internal:/home/gaetan/.rbenv/versions/3.1.4/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from <internal:/home/gaetan/.rbenv/versions/3.1.4/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from /home/gaetan/.ruby/gems/bundler-2.4.14/exe/bundle:16:in `<top (required)>'
	from /home/gaetan/.rbenv/versions/3.1.4/bin/bundle:25:in `load'
	from /home/gaetan/.rbenv/versions/3.1.4/bin/bundle:25:in `<main>'

It works if I do GEM_HOME="" bundle install but it created a bunch of stuff in my project directory, which is not ideal and I don't think it's the right solution.

FYI GEM_HOME is $HOME/.ruby, I am not sure why ?
Anyway unsetting GEM_HOME fixed my issues.

Thanks for your help!