Installing openssl in ruby / rbenv

Question

I need to use openssl in ruby. How should I install the same? I've installed ruby through rbenv, and am using ubuntu 12.04.

kprakasam@ubuntu:~$ ruby -v
ruby 1.9.2p180 (2011-02-18 revision 30909) [x86_64-linux]

kprakasam@ubuntu:~$ irb
irb(main):001:0> require 'openssl'
LoadError: no such file to load -- openssl
    from /home/kprakasam/.rbenv/versions/1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from /home/kprakasam/.rbenv/versions/1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from (irb):1
    from /home/kprakasam/.rbenv/versions/1.9.2-p180/bin/irb:12:in `<main>'

Solution 1

openssl needs to be installed on your local machine.

You then need to compile Ruby with openssl support, which is achieved via the --with-openssl-dir command-line switch.

Maybe this will help you.

Solution 2

For Mac OSX this is what saved me:

RUBY_CONFIGURE_OPTS=--with-openssl-dir=<openssl install dir> rbenv install

From the Ruby build wiki

But.. how to find the openssl install dir?:

$ brew list openssl
/usr/local/Cellar/openssl/1.0.2d_1/bin/c_rehash
/usr/local/Cellar/openssl/1.0.2d_1/bin/openssl
...

Then the openssl install dir is:

/usr/local/Cellar/openssl/1.0.2d_1/

And the ruby installation command ends as this:

RUBY_CONFIGURE_OPTS=--with-openssl-dir=/usr/local/Cellar/openssl/1.0.2d_1/ rbenv install

Solution 3

First, install openssl:

sudo apt-get -y install build-essential zlib1g-dev libreadline-dev libssl-dev libcurl4-openssl-dev

Afterwards, recompile Ruby.

Note: Only fixing the comment from @Nebojsa above

Solution 4

This might help you: Rails: cannot load such file — openssl.

Solution 5

EDIT: Please note that this answer may be out of date. The issue in question was resolved in v0.8.1.

---

After reading multiple answers to this question, I managed to get it working on macOS 10.15 using the following commands:

brew install rbenv/tap/[email protected]
OPENSSL_1_0_DIR=$(brew --prefix rbenv/tap/[email protected])

export CPPFLAGS=-I${OPENSSL_1_0_DIR}/include
export LDFLAGS=-L${OPENSSL_1_0_DIR}/lib

ruby-install ruby 2.2.10 -- --with-openssl-dir=${OPENSSL_1_0_DIR}

View more solutions

Comments

[n8gard]

This is useful if you're using RVM. See the accepted answer if using RBENV.

[Moxley Stratton]

This worked for me when installing ruby-2.0.0-p451 from source onto Ubuntu-Saucy 13.10.

[Harry Moreno]

I'll add that my compilation error on OSX mentioned two versions of openssl, I then removed all versions of openssl from brew (uninstall and prune) and reinstalled openssl. Then compiling worked with ruby-install ruby 2.5.1 -- --with-openssl-dir=/usr/local/Cellar/openssl/1.0.2o_1/.

[Conor]

Fixes /tmp/ruby-build.20190501225018.25089/ruby-2.6.3/lib/rubygems‌​/core_ext/kernel_req‌​uire.rb:54:in `require': libssl.so.1.0.0: cannot open shared object file: No such file or directory - /tmp/ruby-build.20190501225018.25089/ruby-2.6.3/.ext/x86_64-‌​linux/openssl.so (LoadError) on Debian 9 as well

[senor_bacon]

Thank you! also fixes "Failed to configure openssl. It will not be installed."

[flpfar]

I have upgraded my ubuntu to version 20.04.1 and my ruby stopped working. Using this command and reinstalling the ruby versions on my rbenv did the trick. Thanks!

[Sanaulla]

Then I face the following error - Error running '__rvm_make -j4'

[fn control option]

brew --prefix [email protected] can be used to get the openssl path, i.e. RUBY_CONFIGURE_OPTS=--with-openssl-dir=$(brew --prefix [email protected])