Allow building foreign libraries on FreeBSD

[arrowd]

• Patches conform to the coding conventions.
• Any changes that could be relevant to users have been recorded in the changelog.
  • Is the change significant? If so, remember to add significance: significant in the changelog file.
• The documentation has been updated, if necessary.
• 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]

FWIW we can't currently test on FreeBSD (I hope to get validate running on CircleCI at some point).

[arrowd]

I bumped into this problem on FreeBSD, patched our Cabal port and verified that it works: freebsd/freebsd-ports@2c0ada2

[Mikolaj]

Thank you. Feel free to set the merge_me label.

[mergify]

This pull request has been removed from the queue for the following reason: pull request branch update failed.

The pull request can't be updated.

You should update or rebase your pull request manually. If you do, this pull request will automatically be requeued once the queue conditions match again.
If you think this was a flaky issue, you can requeue the pull request, without updating it, by posting a @mergifyio requeue comment.

[mergify]

This pull request has been removed from the queue for the following reason: pull request branch update failed.

The pull request can't be updated.

You should update or rebase your pull request manually. If you do, this pull request will automatically be requeued once the queue conditions match again.
If you think this was a flaky issue, you can requeue the pull request, without updating it, by posting a @mergifyio requeue comment.

[arrowd]

What do I need to do to tame the bot?

[ulysses4ever]

@arrowd sorry for the bot. Could you please try to rebase one more time maybe? On the top of the latest master.

[ulysses4ever]

Terrific, thanks!