Library not loaded libgmp.10.dylib on self-hosted macos M1

using: self-hosted macOS (M1 chip)

- name: Install ruby
  uses: ruby/setup-ruby@v1
  env:
    ImageOS: macos1015

1st `libgmp.10.dylib` error:

The installation failed on “Print Ruby version” step with the error below:

Reason: tried: '/usr/local/opt/gmp/lib/libgmp.10.dylib' (no such file), '/usr/local/lib/libgmp.10.dylib' (no such file), '/usr/lib/libgmp.10.dylib' (no such file)

I have gmp installed with homebrew and hence the libgmp.10.dylib is located under /opt/homebrew/Cellar/gmp/6.2.1_1/lib/libgmp.10.dylib

2nd `libgmp.10.dylib` error

I manually installed gmp to ensure /usr/local/lib/libgmp.10.dylib will be available

but then, got a new error:

'/usr/local/lib/libgmp.10.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')),

Issue Analytics

State:
Created a year ago
Reactions:2
Comments:19 (6 by maintainers)

Top GitHub Comments

2reactions

Shahaedcommented, Sep 7, 2022

I’m not entirely sure a symlink is accepted (depends on https://github.com/actions/toolkit/tree/main/packages/tool-cache), but it’s worth a try.

It won’t. The tool checks the .../actions-runner/_work/_tool/Ruby/{version}/{os_architecture} for existing cache and if it doesn’t exist this action will download a new on into the hostedtoolcache folder and overwrite whatever is there.

Since Github Actions supports M1 self hosted runners it would be nice for this action to have the MacOS arm builds. However automating that is obviously hard since Github doesn’t have any MacOS arm runners.

1reaction

magnusspcommented, Sep 9, 2022

After some more headache with this problem I don’t think @Shahaed python script will solve the issue for me. I already have an arm64 built binary of Ruby installed on the machine via rbenv. The python script only seem to care about homebrew installs.

So my solution was to create a symlinks in /Users/runner/hostedtoolcache to the rbenv install of Ruby similar to how @Shahaed python script does for homebrew installed Cellars.

Then I have a script that is run before runner jobs that will execute ln -fs /Users/runner/hostedtoolcache/Ruby /Users/runner/actions-runner/_work/_tool

So in short

# create symlinks in hostedtoolcache to rbenv install
ln -s /Users/runner/.rbenv/versions/3.1.2 /Users/runner/hostedtoolcache/Ruby/3.1.2/arm64
ln -s /Users/runner/.rbenv/versions/3.1.2 /Users/runner/hostedtoolcache/Ruby/3.1.2/x86
ln -s /Users/runner/.rbenv/versions/3.1.2 /Users/runner/hostedtoolcache/Ruby/3.1.2/x64
touch /Users/runner/hostedtoolcache/Ruby/3.1.2/arm64.complete
touch /Users/runner/hostedtoolcache/Ruby/3.1.2/x86.complete
touch /Users/runner/hostedtoolcache/Ruby/3.1.2/x64.complete

# have a script run at job startup by the github runner that runs the following command
ln -fs /Users/runner/hostedtoolcache/Ruby /Users/runner/actions-runner/_work/_tool

This can be a temporary solution for those with rbenv ruby until this action, setup-ruby, have solved arm64 macos builds that are pulled down by the action.