jackaudio: 1.9.10 -> 1.9.11-RC1

[magnetophon]

Motivation for this change

Things done

• Tested using sandboxing
  (nix.useSandbox on NixOS,
  or option build-use-sandbox in nix.conf
  on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • Linux
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Fits CONTRIBUTING.md.

---

[cillianderoiste]

We discussed this on IRC. There hasn't been a jack2 release in 3 years, and this version is considered stable except that they need to fix Windows and OsX builds before cutting a final release: http://jack-audio.10948.n7.nabble.com/Jack-Devel-JACK2-1-9-11-RC1-is-now-tagged-td19490.html

If that doesn't happen, and this version is adopted by mainstream audio distros i.e. it becomes a de-facto release, then I'd be happy to include it in nixpkgs, but personally, I would like to wait a bit for things to settle down.

[magnetophon]

@cillianderoiste The current maintainer of jack is also the creator of KXStudio, and has confirmed it's safe:
jack-git has been part of KXStudio for several months.

[cillianderoiste]

@magnetophon Ah, if KXStudio has been using it for months, then I think it's fine. Can you delete the jack-gcc5.patch file too please? Do you think we need to keep jack2Unstable at all? I see it's only used in libsoundio, so I guess that can use 1.9.11-RC1 instead?

[magnetophon]

@cillianderoiste OK, done.

[cillianderoiste]

Excellent, thanks @magnetophon!

[magnetophon]

@cillianderoiste The pleasure is all mine. For way too long I had a jack override to unstable, so I had to compile a lot of stuff on each upgrade.
Soon, no more!