haiku: fix incorrect linked library.

[jessicah]

Introduced in fb2a763; using a non-existent "libunix". This is in libgnu.

[rustbot]

r? @JohnTitor

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[JohnTitor]

I'm not familiar with Haiku so just to confirm, should every Haiku users have the libgnu, i.e. does it need an additional setup? If it should it's fine.

[jessicah]

Haiku has non-posix extensions in libbsd and libgnu; they're part of the system, however.

[nielx]

Can confirm that this fixes the build, the incorrect linking was introduced in #3165.

[JohnTitor]

It should be fine then, thanks for clarifying! @bors r+

[bors]

📌 Commit 2bc73cc has been approved by JohnTitor

It is now in the queue for this repository.

[bors]

⌛ Testing commit 2bc73cc with merge f5541af...

[bors]

☀️ Test successful - checks-actions, checks-cirrus-freebsd-12, checks-cirrus-freebsd-13, checks-cirrus-freebsd-14
Approved by: JohnTitor
Pushing f5541af to master...

[bors]

☀️ Test successful - checks-actions, checks-cirrus-freebsd-12, checks-cirrus-freebsd-13, checks-cirrus-freebsd-14
Approved by: JohnTitor
Pushing f5541af to master...

[bors]

👀 Test was successful, but fast-forwarding failed: 422 Changes must be made through a pull request.