hurd: Enable using $ORIGIN in RPATH

[sthibaul]

GNU/Hurd fully supports RPATH and the $ORIGIN development, and we indeed want to use it for relocatable installations shipped in Debian GNU/Hurd.

Template Α: This PR modifies cabal behaviour

Include the following checklist in your PR:

• Patches conform to the coding conventions.
• Any changes that could be relevant to users have been recorded in the changelog.
• [N/A] The documentation has been updated, if necessary.
• [N/A] Manual QA notes have been included.
• Tests have been added. (Ask for help if you don’t know how to write them! Ask for an exemption if tests are too complex for too little coverage!)

[geekosaur]

I don't know what's up with RTD; it should be using ubuntu-22.04 which is supported.

[ulysses4ever]

This PR does not modify cabal behaviour

This PR very much does modify cabal behavior.

[sthibaul]

This PR does not modify cabal behaviour

This PR very much does modify cabal behavior.

Well, depends what you call "behavior". It does change the eventual output indeed, but only to actually fix what is produced, to align it on what is produced e.g. on Linux. So there is nothing to document for users etc. and the test is just "works as expected on GNU/Hurd". ATM the resulting output is just unusable for relocatable installs...

[ulysses4ever]

If the patch changes the behavior from being unusable to being convenient, it still changes behavior. Please, pick the appropriate PR template the next time.

At the very minimum, the PR needs needs a changelog file.

Dear Cabal maintainers, please, abstain from approving PRs without changelogs.

[sthibaul]

I have added a changelog.d file

[ulysses4ever]

Thank you!

[ulysses4ever]

@mergify refresh

[mergify]

refresh

✅ Pull request refreshed