(cherry picked from commit b8d86f5)

(cherry picked from commit e9ef95e)

(cherry picked from commit 01fe6fb)

Fixes boot for me.

Closes: #355284
(cherry picked from commit 63ce466)

…hange (#356049)

Release Notes:
https://www.postgresql.org/about/news/postgresql-171-165-159-1414-1317-and-1221-released-2955/

(cherry picked from commit 797b544)

This replaces `writeShellApplication` with `writeShellScriptBin` that
doesn't perform a shellcheck. This makes it way easier to build
postgresql on staging since GHC is super slow to build, even with pretty
powerful machines.

Also Haskell updates are currently merged straight into master which
means that postgresql and all reverse dependencies require a rebuild on
master then[1].

[1] #354270 (comment)

(cherry picked from commit 4cd083a)

(cherry picked from commit 6fc6e7b)

This reverts commit 10c87ee.

(cherry picked from commit 1810b52)

(cherry picked from commit 719c731)

…ARGET on Darwin" (#356648)

We just need to make sure the attribute evaluates so we can cleanly
access `meta.broken` for those versions.

(cherry picked from commit ce6c31c)

As mentioned in #305146, keeping LLVM 12 is a source of pain because it
is the only version to be built from individual release tarball instead
of the LLVM monorepo. This commit makes LLVM 12 start from the monorepo
as well, simplifying all common LLVM expressions in the process.

With #347887, some quirks in the expressions for LLVM <14 were ironed
out, so building LLVM through from the monorepo is quite simple now.

- Most expressions only required minor changes, mostly removing the
  special casing for `sourceRoot`.

- The patch lists from llvm/12/default.nix were ported to
  common/default.nix. This only required a few extra conditionals which
  could be reduced via a rebuild also involving other LLVM versions.
  Outstanding tasks of little urgency have been noted in TODO comments.
  I have verified that the patch lists stay the same for all packages
  except LLVM where merely the order changes. An extra set of eyes
  is appreciated, of course.

- clang: The expression was reworked to use the same symlink location
  for clang-tools-extra for all versions including LLVM 12. This
  required adjusting the ad hoc patching of the clangd cmake files
  slightly.

- libunwind: We no longer need to make the libcxx sources available
  manually. We can rely on the monorepo source instead.

- lld: We no longer need to make the libunwind sources available manually.

- llvm: We no longer need to make the polly sources available manually

- On Darwin, we need to bypass CMake's C++ compiler for libcxx and
  libunwind now. It isn't a 100% clear why, probably because we've
  started to use Darwin's bootstrapStdenv for libcxx in the common
  expression compared to LLVM 12 on master [1].
  The reordering of flags for wasm causes a rebuild for some packages
  like firefox, but this should be tolerable on staging.

[1]: https://github.com/NixOS/nixpkgs/blob/665ebfb253caba7b85c2affefe2a92b305def4e6/pkgs/development/compilers/llvm/12/default.nix#L392-L430

(cherry picked from commit ee9eacf)

All LLVM versions < 12 have been removed, so this patch can live in the
versioned directory, simplifying the patch list in the process.

(cherry picked from commit 8408b91)

Seems like the patch we've written for LLVM 13 and above also works for
LLVM 12 which seems a little more robust.

(cherry picked from commit 3743784)

Scheduled for removal in 24.11, so let's follow through.

Added in #291544.

(cherry picked from commit 71306e6)

… (staging part) (#358203)

Update to unstable version to relieve some compat issues and reenable
a number of tests.

The upstream unfortunately does not push out release very often anymore.

(cherry picked from commit c3f73ea)
https://hydra.nixos.org/build/279791996

The previous commit removed the handling of `dict` arguments, but
didn’t adjust the type, leading to the following type-checking error:

    test_driver/driver.py:216: error: Argument 1 to "NixStartScript" has incompatible type "str | dict[Any, Any]"; expected "str"  [arg-type]

It also left an unused import that Ruff is unhappy about:

    build/lib/test_driver/driver.py:11:22: F401 [*] `colorama.Fore` imported but unused
    …
    build/lib/test_driver/driver.py:11:28: F401 [*] `colorama.Style` imported but unused

Fixes: 71306e6
(cherry picked from commit d490680)

…bility clean‐up (#359689)