rbenv install 3.1.5 is failed on MacOS 14.4.1

[mustafaergul]

Machine details:

Apple M1 Pro
macOS 14.4.1

Error:

BUILD FAILED (macOS 14.4.1 on arm64 using ruby-build 20240501)

Steps taken to reproduce error:

• brew install rbenv ruby-build
• rbenv install 3.1.5

Steps taken to resolve error:

• xcode-select --install
• brew upgrade ruby-build
• brew install openssl libffi zlib rbenv readline
• brew install apple-gcc42

I am trying to install ruby 3.1.5 using rbenv but it is failing with the error message as in the file below;

/private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:490:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:616:in `block in try_compile'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:563:in `with_werror'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:616:in `try_compile'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:680:in `try_cflags'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:1025:in `block (2 levels) in append_cflags'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:989:in `block in checking_for'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:354:in `block (2 levels) in postpone'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:324:in `open'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:354:in `block in postpone'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:324:in `open'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:350:in `postpone'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:988:in `checking_for'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:1024:in `block in append_cflags'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:1023:in `each'
	from /private/var/folders/xf/057s60sx27s3f1_8jsv9qd940000gn/T/ruby-build.20240502105217.24149.sA8jCT/ruby-3.1.5/lib/mkmf.rb:1023:in `append_cflags'
	from extconf.rb:3:in `<main>'

Tried to find something similar in the discussions but specific version case is not found.

build-log.log

Thanks in advance!

[mislav]

Hi, sorry you're having trouble. I see nothing wrong with your setup. What does xcode-select --install output?

The brew install apple-gcc42 step should not be necessary for Ruby. The compilers that ship with the macOS system (obtained through xcode-select --install) are enough to build most software.

To check for more information about the failure, these lines of the log file you shared might be a good starting point:

6094   │ To see why this extension failed to compile, please check the mkmf.log which can be found here:
6095   │ 
6096   │   /Users/mergul/.rbenv/versions/3.1.5/lib/ruby/gems/3.1.0/extensions/arm64-darwin-23/3.1.0/rbs-2.7.0/mkmf.log

[mustafaergul]

Thanks for the swift reply ❤️ xcode-select --install opens the xcode and installs the tool successfully.

On the other hand there is such file /Users/mergul/.rbenv/versions/3.1.5/lib/ruby/gems/3.1.0/extensions/arm64-darwin-23/3.1.0/rbs-2.7.0/mkmf.log,

[mislav]

I found this bug report: https://bugs.ruby-lang.org/issues/19920

It looks like this happens on a macOS system where SIP (system integrity protection) is disabled. By default, SIP is enabled on macOS.

A workaround might be: rbenv install 3.1.5 -- --disable-shared, since it's building the shared library on a SIP-disabled system that triggers the bug.

[mustafaergul]

Thanks that is resolved installing the 3.1.5 version 🎸

[dhanuyapa]

==> Installed ruby-3.1.5 to /Users/yapabandara/.rbenv/versions/3.1.5

NOTE: to activate this Ruby version as the new default, run: rbenv global 3.1.5
yapabandara@YAPABANDARAs-MacBook-Air ~ % pod --version
zsh: command not found: pod
yapabandara@YAPABANDARAs-MacBook-Air ~ % gem install -n /usr/local/bin ffi cocoapods
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.6.0 directory.
yapabandara@YAPABANDARAs-MacBook-Air ~ % echo 'eval "$(rbenv init -)"' >> ~/.zshrc
source ~/.zshrc

yapabandara@YAPABANDARAs-MacBook-Air ~ % gem install ffi cocoapods

ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.6.0 directory.
yapabandara@YAPABANDARAs-MacBook-Air ~ % how to solve this

[mislav]

Hi, yours seem to be a problem entirely unrelated to the original problem in this thread. But I will do my best in answering.

First of all, you should not need to install any Ruby version just to install cocoapods. The cocoapods website lists an installation method that uses the system Ruby version that ships with your macOS: https://guides.cocoapods.org/using/getting-started.html#getting-started

However, if you do want to install cocoapods using a newer Ruby version, then you have two options:

1. If your system already has Homebrew, you can use that instead of rbenv: brew install cocoapods. This is generally simpler and faster when compared to setting up rbenv for the sole purpose of using pod.

2. If you do want to use rbenv for cocoapods, then you are on the right track with what you've shared before, including configuring your zshrc file, but for some reason gem still resolves to /usr/bin/gem for you instead to ~/.rbenv/shims/gem which it should after rbenv has been set up. To debug what's happening, open a new terminal window and check echo $PATH. Is rbenv's shims directory listed? If so, you can run rbenv rehash (just in case) to ensure that ~/.rbenv/shims/gem gets created.