darwin: set the minimum version to macOS 11.3; nixos/doc/rl-2505: announce macOS version support policy (#352129)

2024-11-21 22:43:01 +00:00 · 2024-11-18 11:14:08 +00:00 · 2024-11-18 11:14:08 +00:00 · f23067f508
commit f23067f508
parent a467369a68 874d326aca
76 changed files with 205 additions and 2320 deletions
--- a/doc/stdenv/platform-notes.chapter.md
+++ b/doc/stdenv/platform-notes.chapter.md
@ -87,31 +87,24 @@ When that happens, the one with the  highest version is always used.

 The following is a list of Xcode versions, the SDK version in Nixpkgs, and the attribute to use to add it.
 Check your package’s documentation (platform support or installation instructions) to find which Xcode or SDK version to use.
-Generally, only the last SDK release for a major version is packaged (each _x_ in 10._x_ until 10.15 is considered a major version).
+Generally, only the last SDK release for a major version is packaged.

-| Xcode version      | SDK version                                       | Nixpkgs attribute |
-|--------------------|---------------------------------------------------|-------------------|
-| Varies by platform | 10.12.2 (x86_64-darwin)<br/>11.3 (aarch64-darwin) | `apple-sdk`       |
-| 8.0–8.3.3          | 10.12.2                                           | `apple-sdk_10_12` |
-| 9.0–9.4.1          | 10.13.2                                           | `apple-sdk_10_13` |
-| 10.0–10.3          | 10.14.6                                           | `apple-sdk_10_14` |
-| 11.0–11.7          | 10.15.6                                           | `apple-sdk_10_15` |
-| 12.0–12.5.1        | 11.3                                              | `apple-sdk_11`    |
-| 13.0–13.4.1        | 12.3                                              | `apple-sdk_12`    |
-| 14.0–14.3.1        | 13.3                                              | `apple-sdk_13`    |
-| 15.0–15.4          | 14.4                                              | `apple-sdk_14`    |
-| 16.0               | 15.0                                              | `apple-sdk_15`    |
+| Xcode version      | SDK version        | Nixpkgs attribute            |
+|--------------------|--------------------|------------------------------|
+| 12.0–12.5.1        | 11.3               | `apple-sdk_11` / `apple-sdk` |
+| 13.0–13.4.1        | 12.3               | `apple-sdk_12`               |
+| 14.0–14.3.1        | 13.3               | `apple-sdk_13`               |
+| 15.0–15.4          | 14.4               | `apple-sdk_14`               |
+| 16.0               | 15.0               | `apple-sdk_15`               |


 #### Darwin Default SDK versions {#sec-darwin-troubleshooting-darwin-defaults}

-The current default versions of the deployment target (minimum version) and SDK are indicated by Darwin-specific attributes on the platform. Because of the ways that minimum version and SDK can be changed that are not visible to Nix, they should be treated as lower bounds.
+The current default version of the SDK and deployment target (minimum supported version) are indicated by the Darwin-specific platform attributes `darwinSdkVersion` and `darwinMinVersion`.
+Because of the ways that minimum version and SDK can be changed that are not visible to Nix, they should be treated as lower bounds.
 If you need to parameterize over a specific version, create a function that takes the version as a parameter instead of relying on these attributes.

- `darwinMinVersion` defaults to 10.12 on x86_64-darwin and 11.0 on aarch64-darwin.
-  It sets the default deployment target.
- `darwinSdkVersion` defaults to 10.12 on x86-64-darwin and 11.0 on aarch64-darwin.
-  Only the major version determines the SDK version, resulting in the 10.12.2 and 11.3 SDKs being used on these platforms respectively.
+On macOS, the `darwinMinVersion` and `darwinSdkVersion` are always the same, and are currently set to 11.3.


 #### `xcrun` cannot find a binary {#sec-darwin-troubleshooting-xcrun}
@ -264,10 +257,10 @@ The legacy SDK provided two ways of overriding the default SDK.
 These are both being phased out along with the legacy SDKs.
 They have been updated to set up the new SDK for you, but you should replace them with doing that directly.

- `pkgs.darwin.apple_sdk_11_0.callPackage` - this pattern was used to provide frameworks from the 11.0 SDK.
-  It now adds the `apple-sdk_11` package to your derivation’s build inputs.
+- `pkgs.darwin.apple_sdk_11_0.callPackage` - this pattern was used to provide frameworks from the macOS 11 SDK.
+  It is now the same as `callPackage`.
 - `overrideSDK` - this stdenv adapter would try to replace the frameworks used by your derivation and its transitive dependencies.
-  It now adds the `apple-sdk_11` package for `11.0` or the `apple-sdk_12` package for `12.3`.
+  It now adds the `apple-sdk_12` package for `12.3` and does nothing for `11.0`.
  If `darwinMinVersion` is specified, it will add `darwinMinVersionHook` with the specified minimum version.
  No other SDK versions are supported.

--- a/lib/systems/default.nix
+++ b/lib/systems/default.nix
@ -251,7 +251,7 @@ let
        else null;
      # The canonical name for this attribute is darwinSdkVersion, but some
      # platforms define the old name "sdkVer".
-      darwinSdkVersion = final.sdkVer or (if final.isAarch64 then "11.0" else "10.12");
+      darwinSdkVersion = final.sdkVer or "11.3";
      darwinMinVersion = final.darwinSdkVersion;
      darwinMinVersionVariable =
        if final.isMacOS then "MACOSX_DEPLOYMENT_TARGET"
--- a/nixos/doc/manual/release-notes/rl-2505.section.md
+++ b/nixos/doc/manual/release-notes/rl-2505.section.md
@ -4,7 +4,11 @@

 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->

- Create the first release note entry in this section!
+- **This release of Nixpkgs requires macOS Big Sur 11.3 or newer, as announced in the 24.11 release notes.**
+  We cannot guarantee that packages will continue to work on older versions of macOS.
+  Future Nixpkgs releases will only support [macOS versions supported by Apple](https://endoflife.date/macos); this means that **Nixpkgs 25.11 will require macOS Sonoma 14 or newer**.
+  Users on old macOS versions should consider upgrading to a supported version (potentially using [OpenCore Legacy Patcher](https://dortania.github.io/OpenCore-Legacy-Patcher/) for old hardware) or installing NixOS.
+  If neither of those options are viable and you require new versions of software, [MacPorts](https://www.macports.org/) supports versions back to Mac OS X Snow Leopard 10.6.

 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->

--- a/pkgs/applications/science/physics/crystfel/default.nix
+++ b/pkgs/applications/science/physics/crystfel/default.nix
@ -31,7 +31,6 @@
 , gtk3
 , gdk-pixbuf
 , argp-standalone
-, memorymappingHook
 , withGui ? true
 , withBitshuffle ? true
 }:
@ -211,8 +210,6 @@ stdenv.mkDerivation rec {
  ] ++ lib.optionals withGui [ gtk3 gdk-pixbuf ]
  ++ lib.optionals stdenv.hostPlatform.isDarwin [
    argp-standalone
-  ] ++ lib.optionals (stdenv.hostPlatform.isDarwin && !stdenv.hostPlatform.isAarch64) [
-    memorymappingHook
  ]
  ++ lib.optionals withBitshuffle [ hdf5-external-filter-plugins ];

--- a/pkgs/by-name/ap/apple-sdk/common/fetch-sdk.nix
+++ b/pkgs/by-name/ap/apple-sdk/common/fetch-sdk.nix
@ -27,11 +27,7 @@ fetchurl {
    mv "$downloadedFile" "$renamed"
    pbzx "$renamed" | cpio -idm

-    # SDKs are inconsistent about whether MacOSX.sdk or MacOSX<version>.sdk is a symlink.
    src=Library/Developer/CommandLineTools/SDKs/MacOSX${lib.versions.majorMinor version}.sdk
-    if [ ! -d $src ]; then
-      src=Library/Developer/CommandLineTools/SDKs/MacOSX.sdk
-    fi

    # Remove unwanted binaries, man pages, and folders from the SDK.
    rm -rf $src/usr/bin $src/usr/share $src/System/Library/Perl
--- a/pkgs/by-name/ap/apple-sdk/common/process-stubs.nix
+++ b/pkgs/by-name/ap/apple-sdk/common/process-stubs.nix
@ -24,7 +24,6 @@ self: super: {
    + ''
      echo "Removing the following dylibs from the libSystem reexported libraries list: ${lib.escapeShellArg (lib.concatStringsSep ", " removedDylibs)}"
      for libSystem in libSystem.B.tbd libSystem.B_asan.tbd; do
-        test ! -e usr/lib/$libSystem && continue # TODO: remove once the minimum SDK is 10.14 or newer.
        tapi stubify --filetype=tbd-v5 usr/lib/$libSystem -o usr/lib/$libSystem # tbd-v5 is a JSON-based format.
        jq --argjson libs ${lib.escapeShellArg (builtins.toJSON removedDylibs)} '
          if .libraries then
--- a/pkgs/by-name/ap/apple-sdk/common/rewrite-sdk-paths.nix
+++ b/pkgs/by-name/ap/apple-sdk/common/rewrite-sdk-paths.nix
@ -1,18 +0,0 @@
-{ lib, sdkVersion }:
-
-let
-  name = "MacOSX${lib.versions.majorMinor sdkVersion}.sdk";
-in
-self: super: {
-  # Rewrite the stubs to point to dylibs in the SDK instead of at system locations. This is needed for umbrella
-  # frameworks in older SDKs, which don’t also embed their stubs.
-  buildPhase =
-    super.buildPhase or ""
-    + ''
-      echo "Rewriting stubs to reference the SDK location in the store"
-      find . -name '*.tbd' -type f -exec sed -E \
-        -e "/^install-name/n; s|( \\|'\\|\"\\|\\[)/usr/|\1$sdkpath/${name}/usr/|g" \
-        -e "/^install-name/n; s|( \\|'\\|\"\\|\\[)/System/|\1$sdkpath/${name}/System/|g" \
-        -i {} \;
-    '';
-}
--- a/pkgs/by-name/ap/apple-sdk/metadata/apple-oss-lockfile.json
+++ b/pkgs/by-name/ap/apple-sdk/metadata/apple-oss-lockfile.json
@ -1,716 +1,4 @@
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-    "IOAudioFamily": {
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-      "hash": "sha256-bbGzqJnenEL9hRyKMBif/381/ETO+yNYHhlnXXWLne0=",
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-  },
-  "10.13": {
-    "url": "http://swcdn.apple.com/content/downloads/33/36/041-90419-A_7JJ4H9ZHO2/xs88ob5wjz6riz7g6764twblnvksusg4ps/CLTools_SDK_macOS1013.pkg",
-    "version": "10.13.2",
-    "hash": "sha256-8nd55fiJLfRWABAbMaHXjp6i20RqupmKedwmhb3S0/A="
-  },
-  "10.14": {
-    "url": "http://swcdn.apple.com/content/downloads/41/57/061-26573-A_JMOA8GZGDR/lj8yrtu8dgs40fw9k8f5fkoviwkp0og6vs/CLTools_SDK_macOS1014.pkg",
-    "version": "10.14.6",
-    "hash": "sha256-NMNkycIl3AVZCw0ZpHNkaeYVS9LAZVSddHw5loL9dhk="
-  },
-  "10.15": {
-    "url": "https://swcdn.apple.com/content/downloads/50/51/071-29699-A_YC8SX0OHH3/7479xojqghsvgtnt3dxjpnxuz9sjpmbmds/CLTools_macOSLMOS_SDK.pkg",
-    "version": "10.15.6",
-    "hash": "sha256-mPJQC+v4yNiOCKLQfhidB2WH2MMclSCP1odvOoGdVPw="
-  },
  "11": {
    "url": "https://swcdn.apple.com/content/downloads/02/62/071-54303-A_EU2CL1YVT7/943i95dpeyi2ghlnj2mgyq3t202t5gf18b/CLTools_macOSNMOS_SDK.pkg",
    "version": "11.3",
--- a/pkgs/by-name/ap/apple-sdk/package.nix
+++ b/pkgs/by-name/ap/apple-sdk/package.nix
@ -9,12 +9,8 @@ in
  substitute,

  # Specifies the major version used for the SDK. Uses `hostPlatform.darwinSdkVersion` by default.
-  darwinSdkMajorVersion ? (
-    if lib.versionOlder stdenv.hostPlatform.darwinSdkVersion "11" then
-      lib.versions.majorMinor stdenv.hostPlatform.darwinSdkVersion
-    else
-      lib.versions.major stdenv.hostPlatform.darwinSdkVersion
-  ),
+  darwinSdkMajorVersion ? lib.versions.major stdenv.hostPlatform.darwinSdkVersion,
+
  # Enabling bootstrap disables propagation. Defaults to `false` (meaning to propagate certain packages and `xcrun`)
  # except in stage0 of the Darwin stdenv bootstrap.
  enableBootstrap ? stdenv.name == "bootstrap-stage0-stdenv-darwin",
@ -48,11 +44,6 @@ let
      (callPackage ./common/propagate-inputs.nix { })
      (callPackage ./common/propagate-xcrun.nix { })
    ]
-    # Older SDKs do not include the libraries re-exported from umbrella frameworks in the umbrellas’ stubs, which causes
-    # link failures for those libraries unless their paths have been rewritten to point to the store.
-    ++ lib.optionals (lib.versionOlder sdkVersion "11.0") [
-      (callPackage ./common/rewrite-sdk-paths.nix { inherit sdkVersion; })
-    ]
    # This has to happen last.
    ++ [
      (callPackage ./common/run-build-phase-hooks.nix { })
@ -97,9 +88,7 @@ stdenvNoCC.mkDerivation (
        mkdir -p "$sdkpath"

        cp -rd . "$sdkpath/${sdkName}"
-        ${lib.optionalString (lib.versionAtLeast finalAttrs.version "11.0") ''
-          ln -s "${sdkName}" "$sdkpath/MacOSX${sdkMajor}.sdk"
-        ''}
+        ln -s "${sdkName}" "$sdkpath/MacOSX${sdkMajor}.sdk"
        ln -s "${sdkName}" "$sdkpath/MacOSX.sdk"

        runHook postInstall
@ -116,9 +105,7 @@ stdenvNoCC.mkDerivation (
      homepage = "https://developer.apple.com";
      maintainers = lib.teams.darwin.members;
      platforms = lib.platforms.darwin;
-      badPlatforms =
-        lib.optionals (lib.versionAtLeast sdkVersion "10.15") [ lib.systems.inspect.patterns.is32bit ]
-        ++ lib.optionals (lib.versionOlder sdkVersion "11.0") [ lib.systems.inspect.patterns.isAarch ];
+      badPlatforms = [ lib.systems.inspect.patterns.is32bit ];
    };
  })
 )
--- a/pkgs/by-name/cc/cctools/0003-Fix-utimensat-compatability-with-the-10.12-SDK.patch
+++ b/pkgs/by-name/cc/cctools/0003-Fix-utimensat-compatability-with-the-10.12-SDK.patch
@ -1,50 +0,0 @@
-From 989ba5e30cefa0dd8990da158661713c4a21c0fe Mon Sep 17 00:00:00 2001
-From: Randy Eckenrode <randy@largeandhighquality.com>
-Date: Thu, 11 Apr 2024 18:05:34 -0400
-Subject: [PATCH 3/6] Fix utimensat compatability with the 10.12 SDK
-
---
- include/compat.h    | 3 +++
- libstuff/writeout.c | 2 +-
- misc/lipo.c         | 2 +-
- 3 files changed, 5 insertions(+), 2 deletions(-)
- create mode 100644 include/compat.h
-
-diff --git a/include/compat.h b/include/compat.h
-new file mode 100644
-index 0000000..8b1b866
--- /dev/null
-+++ b/include/compat.h
-@@ -0,0 +1,3 @@
-+#pragma once
-+#include <time.h>
-+extern int utimensat(int dirfd, const char* pathname, const struct timespec times[_Nullable 2], int flags);
-diff --git a/libstuff/writeout.c b/libstuff/writeout.c
-index f904caa..03fa535 100644
--- a/libstuff/writeout.c
-+++ b/libstuff/writeout.c
-@@ -297,7 +297,7 @@ no_throttle:
- 	     * have been zeroed out when the library was created. writeout
- 	     * will not zero out the modification time in the filesystem.
- 	     */
-	    if (__builtin_available(macOS 10.12, *)) {
-+	    if (__builtin_available(macOS 10.13, *)) {
- 		struct timespec times[2] = {0};
- 		memcpy(&times[0], &toc_timespec, sizeof(struct timespec));
- 		memcpy(&times[1], &toc_timespec, sizeof(struct timespec));
-diff --git a/misc/lipo.c b/misc/lipo.c
-index 04a3eca..887c049 100644
--- a/misc/lipo.c
-+++ b/misc/lipo.c
-@@ -607,7 +607,7 @@ unknown_flag:
- 		    if(close(fd) == -1)
- 			system_fatal("can't close output file: %s",output_file);
- #ifndef __OPENSTEP__
-		    if (__builtin_available(macOS 10.12, *)) {
-+		    if (__builtin_available(macOS 10.13, *)) {
- 			time_result = utimensat(AT_FDCWD, output_file,
- 						output_times, 0);
- 		    }
-- 
-2.45.2
-
--- a/pkgs/by-name/cc/cctools/meson.build
+++ b/pkgs/by-name/cc/cctools/meson.build
@ -28,26 +28,11 @@ target_prefix = get_option('target_prefix')
 # Dependencies
 cc = meson.get_compiler('c')

+libcxx = cc.find_library('c++')
 libcodedirectory = cc.find_library('codedirectory')
 libprunetrie = cc.find_library('prunetrie')


-# Feature tests
-# Add compatibility header for Darwin SDKs that don’t define `utimensat`.
-utimensat_test = '''
-#include <fcntl.h>
-#include <sys/stat.h>
-int main(int argc, char* argv[]) {
-    utimensat(AT_FDCWD, NULL, NULL, 0);
-    return 0;
-}
-'''
-if host_machine.system() == 'darwin' and not cc.compiles(utimensat_test, name : 'supports utimensat')
-    add_project_arguments('-include', 'compat.h', language : 'c')
-    add_project_link_arguments('-undefined', 'dynamic_lookup', language : 'c')
-endif
-
-
 incdirs = include_directories('include')

 # Static libraries
@ -454,6 +439,7 @@ install_man('man/nmedit.1')
 otool = executable(
    f'@target_prefix@otool',
    c_args : ['-DEFI_SUPPORT'],
+    dependencies : [libcxx],
    include_directories : incdirs,
    install : true,
    link_with : [libstuff],
@ -553,7 +539,7 @@ install_man('man/strings.1')
 strip = executable(
    f'@target_prefix@strip',
    c_args : ['-DTRIE_SUPPORT'],
-    dependencies : [libcodedirectory, libprunetrie],
+    dependencies : [libcxx, libcodedirectory, libprunetrie],
    include_directories : incdirs,
    install : true,
    link_with : [libstuff],
--- a/pkgs/by-name/cc/cctools/package.nix
+++ b/pkgs/by-name/cc/cctools/package.nix
@ -5,7 +5,6 @@
  buildPackages,
  ld64,
  llvm,
-  memstreamHook,
  meson,
  ninja,
  openssl,
@ -73,9 +72,6 @@ stdenv.mkDerivation (finalAttrs: {
    ./0001-Fix-build-issues-with-misc-redo_prebinding.c.patch
    # Use libcd_is_blob_a_linker_signature as defined in the libcodedirectory.h header
    ./0002-Rely-on-libcd_is_blob_a_linker_signature.patch
-    # cctools uses availability checks for `utimensat`, but it checks the wrong version.
-    # Also, provide a definition to avoid implicit function definition errors.
-    ./0003-Fix-utimensat-compatability-with-the-10.12-SDK.patch
    # Use the nixpkgs clang’s path as the prefix.
    ./0004-Use-nixpkgs-clang-with-the-assembler-driver.patch
    # Make sure cctools can find ld64 in the store
@ -102,9 +98,6 @@ stdenv.mkDerivation (finalAttrs: {
    substituteInPlace misc/libtool.c \
      --subst-var-by targetPrefix '${targetPrefix}'

-    # The version of this file distributed with cctools defines several CPU types missing from the 10.12 SDK.
-    ln -s machine-cctools.h include/mach/machine.h
-
    # Use libxar from nixpkgs
    for cctool_src in misc/nm.c otool/print_bitcode.c; do
      substituteInPlace $cctool_src \
@ -130,7 +123,7 @@ stdenv.mkDerivation (finalAttrs: {
  buildInputs = [
    ld64
    llvm
-  ] ++ lib.optionals (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) [ memstreamHook ];
+  ];

  mesonBuildType = "release";

--- a/pkgs/by-name/hy/hyx/package.nix
+++ b/pkgs/by-name/hy/hyx/package.nix
@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, memstreamHook }:
+{ lib, stdenv, fetchurl }:

 stdenv.mkDerivation rec {
  pname = "hyx";
@ -14,8 +14,6 @@ stdenv.mkDerivation rec {
      --replace "-Wl,-z,relro,-z,now -fpic -pie" ""
  '';

-  buildInputs = lib.optional (stdenv.system == "x86_64-darwin") memstreamHook;
-
  installPhase = ''
    install -vD hyx $out/bin/hyx
  '';
--- a/pkgs/by-name/ld/ld64/meson.build
+++ b/pkgs/by-name/ld/ld64/meson.build
@ -25,48 +25,6 @@ openssl = dependency('openssl', version : '>=3.0')
 xar = cc.find_library('xar')


-# Feature tests
-
-# macOS 10.12 does not support `DISPATCH_APPLY_AUTO`. Fortunately, `DISPATCH_APPLY_CURRENT_ROOT_QUEUE` has the
-# same value and was repurposed in subsequent releases as `DISPATCH_APPLY_AUTO`.
-dispatch_apply_auto_test = '''
-#include <dispatch/dispatch.h>
-int main(int argc, char* argv[]) {
-    dispatch_queue_t queue = DISPATCH_APPLY_AUTO;
-    return 0;
-}
-'''
-if not cc.compiles(
-    dispatch_apply_auto_test,
-    args : '-Wno-unused-command-line-argument',
-    name : 'supports DISPATCH_APPLY_AUTO',
-)
-    add_project_arguments(
-        '-include', 'dispatch/private.h',
-        '-DDISPATCH_APPLY_AUTO=DISPATCH_APPLY_CURRENT_ROOT_QUEUE',
-        '-DPRIVATE', # The required API is private on the 10.12 SDK.
-        language: ['c', 'cpp'],
-    )
-endif
-
-# The return type of `dispatch_get_global_queue` was changed in 10.14.
-# Use the older type if the SDK does not support it.
-dispatch_queue_global_test = '''
-#include <dispatch/dispatch.h>
-int main(int argc, char* argv[]) {
-    dispatch_queue_global_t queue = dispatch_get_global_queue(QOS_CLASS_USER_INITIATED, 0);
-    return 0;
-}
-'''
-if not cc.compiles(
-    dispatch_queue_global_test,
-    args : '-Wno-unused-command-line-argument',
-    name : 'supports dispatch_queue_global_t',
-)
-    add_project_arguments('-Ddispatch_queue_global_t=dispatch_queue_t', language : ['c', 'cpp'])
-endif
-
-
 # Generated files

 compile_stubs_h = custom_target(
@ -143,6 +101,11 @@ ld64 = executable(
    dependencies : [libtapi, openssl, xar],
    include_directories : incdirs,
    install : true,
+    cpp_args : [
+        # Required for `_COMM_PAGE_CPU_CAPABILITIES64` in
+        # <System/machine/cpu_capabilities.h> on `x86_64-darwin`
+        '-DPRIVATE',
+    ],
    # These linker flags mirror those used in a release build of the Xcode project.
    # See: https://github.com/apple-oss-distributions/ld64/blob/47f477cb721755419018f7530038b272e9d0cdea/ld64.xcodeproj/project.pbxproj#L1292-L1299.
    link_args : [
--- a/pkgs/by-name/ld/ld64/package.nix
+++ b/pkgs/by-name/ld/ld64/package.nix
@ -5,6 +5,7 @@
  fetchFromGitHub,
  fetchurl,
  apple-sdk,
+  apple-sdk_14,
  cctools,
  darwin,
  libtapi,
@ -32,23 +33,11 @@ let
    hash = "sha256-0ybVcwHuGEdThv0PPjYQc3SW0YVOyrM3/L9zG/l1Vtk=";
  };

-  dyld = fetchFromGitHub {
-    owner = "apple-oss-distributions";
-    repo = "dyld";
-    rev = "dyld-1162";
-    hash = "sha256-uyFg8QnnP6NWv5lAOTCiFZ0SnFOA/aO/kpjkyvILVsk=";
-  };
+  dyld = apple-sdk_14.sourceRelease "dyld";

  libdispatchPrivate = apple-sdk.sourceRelease "libdispatch";

-  # First version with all the required definitions. This is used in preference to darwin.xnu to make it easier
-  # to support Linux and because the version of darwin.xnu available on x86_64-darwin in the 10.12 SDK is too old.
-  xnu = fetchFromGitHub {
-    owner = "apple-oss-distributions";
-    repo = "xnu";
-    rev = "xnu-6153.11.26";
-    hash = "sha256-dcnGcp7bIjQxeAn5pXt+mHSYEXb2Ad9Smhd/WUG4kb4=";
-  };
+  xnu = apple-sdk.sourceRelease "xnu";

  privateHeaders = stdenvNoCC.mkDerivation {
    name = "ld64-deps-private-headers";
@ -167,15 +156,12 @@ stdenv.mkDerivation (finalAttrs: {
    python3
  ];

-  buildInputs =
-    [
-      libtapi
-      llvm
-      openssl
-      xar
-    ]
-    ++ lib.optionals stdenv.hostPlatform.isDarwin [ darwin.dyld ]
-    ++ lib.optionals stdenv.hostPlatform.isLinux [ libdispatch ];
+  buildInputs = [
+    libtapi
+    llvm
+    openssl
+    xar
+  ] ++ lib.optionals stdenv.hostPlatform.isLinux [ libdispatch ];

  # Note for overrides: ld64 cannot be built as a debug build because of UB in its iteration implementations,
  # which trigger libc++ debug assertions due to trying to take the address of the first element of an emtpy vector.
--- a/pkgs/by-name/no/notemap/package.nix
+++ b/pkgs/by-name/no/notemap/package.nix
@ -3,7 +3,6 @@
 , fetchzip
 , pkg-config
 , libressl
-, memstreamHook
 }:

 stdenv.mkDerivation rec {
@ -21,8 +20,6 @@ stdenv.mkDerivation rec {

  buildInputs = [
    libressl
-  ] ++ lib.optionals (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) [
-    memstreamHook
  ];

  meta = {
--- a/pkgs/by-name/te/telescope/package.nix
+++ b/pkgs/by-name/te/telescope/package.nix
@ -9,7 +9,6 @@
 , ncurses
 , autoreconfHook
 , buildPackages
-, memstreamHook
 }:

 stdenv.mkDerivation rec {
@ -39,7 +38,7 @@ stdenv.mkDerivation rec {
    libgrapheme
    libressl
    ncurses
-  ] ++ lib.optional stdenv.hostPlatform.isDarwin memstreamHook;
+  ];

  configureFlags = [
    "HOSTCC=${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}cc"
--- a/pkgs/by-name/ti/tintin/package.nix
+++ b/pkgs/by-name/ti/tintin/package.nix
@ -1,5 +1,4 @@
 { stdenv, fetchFromGitHub, lib, zlib, pcre
-, memorymappingHook, memstreamHook
 , gnutls
 }:

@ -14,8 +13,7 @@ stdenv.mkDerivation rec {
    hash = "sha256-AfWw9CMBAzTTsrZXDEoOdpvUofIQfLCW7hRgSb7LB00=";
  };

-  buildInputs = [ zlib pcre gnutls ]
-    ++ lib.optionals (stdenv.system == "x86_64-darwin") [ memorymappingHook memstreamHook ];
+  buildInputs = [ zlib pcre gnutls ];

  preConfigure = ''
    cd src
--- a/pkgs/by-name/ut/util-linux/package.nix
+++ b/pkgs/by-name/ut/util-linux/package.nix
@ -14,7 +14,6 @@
 , installShellFiles
 , writeSupport ? stdenv.hostPlatform.isLinux
 , shadowSupport ? stdenv.hostPlatform.isLinux
-, memstreamHook
 , gitUpdater
 }:

@ -90,8 +89,7 @@ stdenv.mkDerivation rec {
    ++ lib.optionals pamSupport [ pam ]
    ++ lib.optionals capabilitiesSupport [ libcap_ng ]
    ++ lib.optionals ncursesSupport [ ncurses ]
-    ++ lib.optionals systemdSupport [ systemd ]
-    ++ lib.optionals (stdenv.system == "x86_64-darwin") [ memstreamHook ];
+    ++ lib.optionals systemdSupport [ systemd ];

  doCheck = false; # "For development purpose only. Don't execute on production system!"

--- a/pkgs/by-name/xf/xfitter/package.nix
+++ b/pkgs/by-name/xf/xfitter/package.nix
@ -18,7 +18,6 @@
 , qcdnum
 , root
 , zlib
-, memorymappingHook, memstreamHook
 }:

 stdenv.mkDerivation rec {
@ -40,7 +39,6 @@ stdenv.mkDerivation rec {
  buildInputs =
    [ apfel blas ceres-solver lhapdf lapack libyaml root qcdnum gsl yaml-cpp zlib ]
    ++ lib.optionals ("5" == lib.versions.major root.version) [ apfelgrid applgrid ]
-    ++ lib.optionals (stdenv.system == "x86_64-darwin") [ memorymappingHook memstreamHook ]
    ++ lib.optional (stdenv.hostPlatform.libc == "glibc") libtirpc
    ;

--- a/pkgs/development/compilers/chicken/5/overrides.nix
+++ b/pkgs/development/compilers/chicken/5/overrides.nix
@ -106,9 +106,7 @@ in
  plot = addToBuildInputs pkgs.plotutils;
  postgresql = addToBuildInputsWithPkgConfig pkgs.postgresql;
  rocksdb = addToBuildInputs pkgs.rocksdb_8_3;
-  scheme2c-compatibility = old:
-    addToNativeBuildInputs (lib.optionals (stdenv.system == "x86_64-darwin") [ pkgs.memorymappingHook ])
-      (addPkgConfig old);
+  scheme2c-compatibility = addPkgConfig;
  sdl-base = old:
    ((addToPropagatedBuildInputsWithPkgConfig pkgs.SDL old) //
      # needed for sdl-config to be in PATH
--- a/pkgs/development/compilers/gcc/common/pre-configure.nix
+++ b/pkgs/development/compilers/gcc/common/pre-configure.nix
@ -32,42 +32,6 @@ lib.optionalString (hostPlatform.isSunOS && hostPlatform.is64bit) ''
  export GFORTRAN_FOR_TARGET=${pkgsBuildTarget.gfortran}/bin/${stdenv.targetPlatform.config}-gfortran
 ''

-# NOTE 2020/3/18: This environment variable prevents configure scripts from
-# detecting the presence of aligned_alloc on Darwin.  There are many facts that
-# collectively make this fix necessary:
-#  - Nix uses a fixed set of standard library headers on all MacOS systems,
-#    regardless of their actual version.  (Nix uses version 10.12 headers.)
-#  - Nix uses the native standard library binaries for the build system.  That
-#    means the standard library binaries may not exactly match the standard
-#    library headers.
-#  - The aligned_alloc procedure is present in MacOS 10.15 (Catalina), but not
-#    in earlier versions.  Therefore on Catalina systems, aligned_alloc is
-#    linkable (i.e. present in the binary libraries) but not present in the
-#    headers.
-#  - Configure scripts detect a procedure's existence by checking whether it is
-#    linkable.  They do not check whether it is present in the headers.
-#  - GCC throws an error during compilation because aligned_alloc is not
-#    defined in the headers---even though the linker can see it.
-#
-# This fix would not be necessary if ANY of the above were false:
-#  - If Nix used native headers for each different MacOS version, aligned_alloc
-#    would be in the headers on Catalina.
-#  - If Nix used the same library binaries for each MacOS version, aligned_alloc
-#    would not be in the library binaries.
-#  - If Catalina did not include aligned_alloc, this wouldn't be a problem.
-#  - If the configure scripts looked for header presence as well as
-#    linkability, they would see that aligned_alloc is missing.
-#  - If GCC allowed implicit declaration of symbols, it would not fail during
-#    compilation even if the configure scripts did not check header presence.
-#
-+ lib.optionalString (buildPlatform.isDarwin) ''
-    export build_configargs=ac_cv_func_aligned_alloc=no
-'' + lib.optionalString (hostPlatform.isDarwin) ''
-    export host_configargs=ac_cv_func_aligned_alloc=no
-'' + lib.optionalString (targetPlatform.isDarwin) ''
-    export target_configargs=ac_cv_func_aligned_alloc=no
-''
-
 # In order to properly install libgccjit on macOS Catalina, strip(1)
 # upon installation must not remove external symbols, otherwise the
 # install step errors with "symbols referenced by indirect symbol
--- a/pkgs/development/compilers/llvm/13/lldb/cpu_subtype_arm64e_replacement.patch
+++ b/pkgs/development/compilers/llvm/13/lldb/cpu_subtype_arm64e_replacement.patch
@ -1,12 +0,0 @@
-diff --git a/source/Host/macosx/objcxx/HostInfoMacOSX.mm b/source/Host/macosx/objcxx/HostInfoMacOSX.mm
--- a/source/Host/macosx/objcxx/HostInfoMacOSX.mm
-+++ b/source/Host/macosx/objcxx/HostInfoMacOSX.mm
-@@ -233,7 +233,7 @@ void HostInfoMacOSX::ComputeHostArchitectureSupport(ArchSpec &arch_32,
-     len = sizeof(is_64_bit_capable);
-     ::sysctlbyname("hw.cpu64bit_capable", &is_64_bit_capable, &len, NULL, 0);
- 
-    if (cputype == CPU_TYPE_ARM64 && cpusubtype == CPU_SUBTYPE_ARM64E) {
-+    if (cputype == CPU_TYPE_ARM64 && cpusubtype == ((cpu_subtype_t) 2)) { // CPU_SUBTYPE_ARM64E is not available in the macOS 10.12 headers
-       // The arm64e architecture is a preview. Pretend the host architecture
-       // is arm64.
-       cpusubtype = CPU_SUBTYPE_ARM64_ALL;
--- a/pkgs/development/compilers/llvm/18/libcxx/0001-darwin-10.12-mbstate_t-fix.patch
+++ b/pkgs/development/compilers/llvm/18/libcxx/0001-darwin-10.12-mbstate_t-fix.patch
@ -1,31 +0,0 @@
-From 9c1cb26c1dd3f92d1c1177e548107d2cd3c5e616 Mon Sep 17 00:00:00 2001
-From: annalee <150648636+a-n-n-a-l-e-e@users.noreply.github.com>
-Date: Fri, 23 Feb 2024 22:58:58 +0000
-Subject: [PATCH] darwin 10.12 mbstate_t fix
-
-https://github.com/llvm/llvm-project/issues/64226
-
-removes space from
-https://github.com/macports/macports-ports/raw/acd8acb171f1658596ed1cf25da48d5b932e2d19/lang/llvm-17/files/0042-mbstate_t-not-defined.patch
-so it applies cleanly
---
- libcxx/include/__mbstate_t.h | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/libcxx/include/__mbstate_t.h b/libcxx/include/__mbstate_t.h
-index bfa6d61..5f51112 100644
--- a/libcxx/include/__mbstate_t.h
-+++ b/libcxx/include/__mbstate_t.h
-@@ -42,6 +42,9 @@
- #elif __has_include(<bits/types/mbstate_t.h>)
- #  include <bits/types/mbstate_t.h> // works on most Unixes
- #elif __has_include(<sys/_types/_mbstate_t.h>)
-+#  if __has_include(<machine/_types.h>)
-+#    include <machine/_types.h>
-+#  endif
- #  include <sys/_types/_mbstate_t.h> // works on Darwin
- #elif !defined(_LIBCPP_HAS_NO_WIDE_CHARACTERS) && __has_include_next(<wchar.h>)
- #  include_next <wchar.h> // fall back to the C standard provider of mbstate_t
-- 
-2.43.0
-
--- a/pkgs/development/compilers/llvm/common/compiler-rt/default.nix
+++ b/pkgs/development/compilers/llvm/common/compiler-rt/default.nix
@ -8,7 +8,6 @@
 , monorepoSrc ? null
 , runCommand
 , apple-sdk
-, apple-sdk_10_13
 , cmake
 , ninja
 , python3
@ -47,14 +46,6 @@ let
  baseName = "compiler-rt";
  pname = baseName + lib.optionalString (haveLibc) "-libc";

-  # Sanitizers require 10.13 or newer. Instead of disabling them for most x86_64-darwin users,
-  # build them with a newer SDK and the default (10.12) deployment target.
-  apple-sdk' =
-    if lib.versionOlder (lib.getVersion apple-sdk) "10.13" then
-      apple-sdk_10_13.override { enableBootstrap = true; }
-    else
-      apple-sdk.override { enableBootstrap = true; };
-
  src' = if monorepoSrc != null then
    runCommand "${baseName}-src-${version}" {} (''
      mkdir -p "$out"
@ -80,10 +71,7 @@ stdenv.mkDerivation ({
    ++ [ python3 libllvm.dev ];
  buildInputs =
    lib.optional (stdenv.hostPlatform.isLinux && stdenv.hostPlatform.isRiscV) linuxHeaders
-    ++ lib.optional (stdenv.hostPlatform.isFreeBSD) freebsd.include
-    # Adding the bootstrap SDK to `buildInputs` on static builds  propagates it, breaking `xcrun`.
-    # This can be removed once the minimum SDK >10.12 on x86_64-darwin.
-    ++ lib.optionals (stdenv.hostPlatform.isDarwin && !stdenv.hostPlatform.isStatic) [ apple-sdk' ];
+    ++ lib.optional (stdenv.hostPlatform.isFreeBSD) freebsd.include;

  env = {
    NIX_CFLAGS_COMPILE = toString ([
@ -148,7 +136,7 @@ stdenv.mkDerivation ({
    # Darwin support, so force it to be enabled during the first stage of the compiler-rt bootstrap.
    "-DCOMPILER_RT_HAS_G_FLAG=ON"
  ] ++ [
-    "-DDARWIN_macosx_CACHED_SYSROOT=${apple-sdk'.sdkroot}"
+    "-DDARWIN_macosx_CACHED_SYSROOT=${apple-sdk.sdkroot}"
    "-DDARWIN_macosx_OVERRIDE_SDK_VERSION=${lib.versions.majorMinor (lib.getVersion apple-sdk)}"
    "-DDARWIN_osx_ARCHS=${stdenv.hostPlatform.darwinArch}"
    "-DDARWIN_osx_BUILTIN_ARCHS=${stdenv.hostPlatform.darwinArch}"
--- a/pkgs/development/compilers/llvm/common/default.nix
+++ b/pkgs/development/compilers/llvm/common/default.nix
@ -167,12 +167,6 @@ let
                  path = ../15;
                }
              ];
-              "libcxx/0001-darwin-10.12-mbstate_t-fix.patch" = [
-                {
-                  after = "18";
-                  path = ../18;
-                }
-              ];
              "libunwind/gnu-install-dirs.patch" = [
                {
                  before = "17";
@ -264,12 +258,6 @@ let
                  path = ../12;
                }
              ];
-              "lldb/cpu_subtype_arm64e_replacement.patch" = [
-                {
-                  after = "13";
-                  path = ../13;
-                }
-              ];
              "lldb/resource-dir.patch" = [
                {
                  before = "16";
@ -697,23 +685,7 @@ let
            ++ lib.optional (lib.versionOlder metadata.release_version "14") (
              metadata.getVersionFile "lldb/gnu-install-dirs.patch"
            )
-            ++ lib.optional (lib.versionAtLeast metadata.release_version "14") ./lldb/gnu-install-dirs.patch
-            # This is a stopgap solution if/until the macOS SDK used for x86_64 is
-            # updated.
-            #
-            # The older 10.12 SDK used on x86_64 as of this writing has a `mach/machine.h`
-            # header that does not define `CPU_SUBTYPE_ARM64E` so we replace the one use
-            # of this preprocessor symbol in `lldb` with its expansion.
-            #
-            # See here for some context:
-            # https://github.com/NixOS/nixpkgs/pull/194634#issuecomment-1272129132
-            #
-            # Patch is applied for >= 14 as the versions below are broken anyways.
-            ++ lib.optional (
-              lib.versionAtLeast metadata.release_version "14"
-              && stdenv.targetPlatform.isDarwin
-              && lib.versionOlder stdenv.targetPlatform.darwinSdkVersion "11.0"
-            ) (metadata.getVersionFile "lldb/cpu_subtype_arm64e_replacement.patch");
+            ++ lib.optional (lib.versionAtLeast metadata.release_version "14") ./lldb/gnu-install-dirs.patch;
        }
        // lib.optionalAttrs (lib.versions.major metadata.release_version == "16") {
          src = callPackage (
@ -1105,62 +1077,37 @@ let

      libcxx = callPackage ./libcxx (
        {
-          patches =
-            lib.optionals (lib.versionOlder metadata.release_version "16") (
-              lib.optional (lib.versions.major metadata.release_version == "15")
-                # See:
-                #   - https://reviews.llvm.org/D133566
-                #   - https://github.com/NixOS/nixpkgs/issues/214524#issuecomment-1429146432
-                # !!! Drop in LLVM 16+
-                (
-                  fetchpatch {
-                    url = "https://github.com/llvm/llvm-project/commit/57c7bb3ec89565c68f858d316504668f9d214d59.patch";
-                    hash = "sha256-B07vHmSjy5BhhkGSj3e1E0XmMv5/9+mvC/k70Z29VwY=";
-                  }
-                )
-              ++ [
-                (substitute {
-                  src = ./libcxxabi/wasm.patch;
-                  substitutions = [
-                    "--replace-fail"
-                    "/cmake/"
-                    "/llvm/cmake/"
-                  ];
-                })
-              ]
-              ++ lib.optional stdenv.hostPlatform.isMusl (substitute {
-                src = ./libcxx/libcxx-0001-musl-hacks.patch;
+          patches = lib.optionals (lib.versionOlder metadata.release_version "16") (
+            lib.optional (lib.versions.major metadata.release_version == "15")
+              # See:
+              #   - https://reviews.llvm.org/D133566
+              #   - https://github.com/NixOS/nixpkgs/issues/214524#issuecomment-1429146432
+              # !!! Drop in LLVM 16+
+              (
+                fetchpatch {
+                  url = "https://github.com/llvm/llvm-project/commit/57c7bb3ec89565c68f858d316504668f9d214d59.patch";
+                  hash = "sha256-B07vHmSjy5BhhkGSj3e1E0XmMv5/9+mvC/k70Z29VwY=";
+                }
+              )
+            ++ [
+              (substitute {
+                src = ./libcxxabi/wasm.patch;
                substitutions = [
                  "--replace-fail"
-                  "/include/"
-                  "/libcxx/include/"
+                  "/cmake/"
+                  "/llvm/cmake/"
                ];
              })
-            )
-            ++
-              lib.optional
-                (
-                  lib.versions.major metadata.release_version == "17"
-                  && stdenv.hostPlatform.isDarwin
-                  && lib.versionOlder stdenv.hostPlatform.darwinMinVersion "10.13"
-                )
-                # https://github.com/llvm/llvm-project/issues/64226
-                (
-                  fetchpatch {
-                    name = "0042-mbstate_t-not-defined.patch";
-                    url = "https://github.com/macports/macports-ports/raw/acd8acb171f1658596ed1cf25da48d5b932e2d19/lang/llvm-17/files/0042-mbstate_t-not-defined.patch";
-                    hash = "sha256-jo+DYA6zuSv9OH3A0bYwY5TlkWprup4OKQ7rfK1WHBI=";
-                  }
-                )
-            ++
-              lib.optional
-                (
-                  lib.versionAtLeast metadata.release_version "18"
-                  && stdenv.hostPlatform.isDarwin
-                  && lib.versionOlder stdenv.hostPlatform.darwinMinVersion "10.13"
-                )
-                # https://github.com/llvm/llvm-project/issues/64226
-                (metadata.getVersionFile "libcxx/0001-darwin-10.12-mbstate_t-fix.patch");
+            ]
+            ++ lib.optional stdenv.hostPlatform.isMusl (substitute {
+              src = ./libcxx/libcxx-0001-musl-hacks.patch;
+              substitutions = [
+                "--replace-fail"
+                "/include/"
+                "/libcxx/include/"
+              ];
+            })
+          );
          stdenv =
            if stdenv.hostPlatform.isDarwin then
              overrideCC darwin.bootstrapStdenv buildLlvmTools.clangWithLibcAndBasicRt
--- a/pkgs/development/compilers/llvm/common/lldb.nix
+++ b/pkgs/development/compilers/llvm/common/lldb.nix
@ -24,8 +24,6 @@
 , patches ? [ ]
 , enableManpages ? false
 , devExtraCmakeFlags ? [ ]
-, apple-sdk_11
-, darwinMinVersionHook
 , ...
 }:

@ -93,14 +91,6 @@ stdenv.mkDerivation (rec {
    (lib.getLib libclang)
  ] ++ lib.optionals stdenv.hostPlatform.isDarwin [
    darwin.bootstrap_cmds
-  ]
-  ++ lib.optionals
-    (
-      stdenv.targetPlatform.isDarwin
-        && lib.versionOlder stdenv.targetPlatform.darwinSdkVersion "11.0"
-    ) [
-    apple-sdk_11
-    (darwinMinVersionHook "10.15")
  ];

  hardeningDisable = [ "format" ];
--- a/pkgs/development/haskell-modules/configuration-darwin.nix
+++ b/pkgs/development/haskell-modules/configuration-darwin.nix
@ -306,13 +306,6 @@ self: super: ({
    __darwinAllowLocalNetworking = true;
  });

-  # network requires `IP_RECVTOS`, which was added in 10.15.
-  network =
-    if lib.versionOlder (lib.getVersion pkgs.apple-sdk) "10.15" then
-      addBuildDepend pkgs.apple-sdk_10_15 super.network
-    else
-      super.network;
-
  foldl = overrideCabal (drv: {
    postPatch = ''
      # This comment has been inserted, so the derivation hash changes, forcing
--- a/pkgs/development/interpreters/python/cpython/default.nix
+++ b/pkgs/development/interpreters/python/cpython/default.nix
@ -25,7 +25,6 @@

 # platform-specific dependencies
 , bash
-, apple-sdk_11
 , darwin
 , windows

@ -178,9 +177,6 @@ let
    bluez
  ] ++ optionals enableFramework [
    darwin.apple_sdk.frameworks.Cocoa
-  ] ++ optionals stdenv.hostPlatform.isDarwin [
-    # Work around for ld64 crashes on x86_64-darwin. Remove once 11.0 becomes the default.
-    apple-sdk_11
  ] ++ optionals stdenv.hostPlatform.isMinGW [
    windows.dlfcn
    windows.mingw_w64_pthreads
--- a/pkgs/development/libraries/gtk/4.x.nix
+++ b/pkgs/development/libraries/gtk/4.x.nix
@ -53,8 +53,6 @@
 , libexecinfo
 , broadwaySupport ? true
 , testers
-, apple-sdk
-, apple-sdk_10_15
 , darwinMinVersionHook
 }:

@ -162,11 +160,6 @@ stdenv.mkDerivation (finalAttrs: {
    # Required for GSettings schemas at runtime.
    # Will be picked up by wrapGAppsHook4.
    gsettings-desktop-schemas
-  ] ++ lib.optionals stdenv.hostPlatform.isDarwin [
-    (darwinMinVersionHook "10.15")
-  ] ++ lib.optionals (stdenv.hostPlatform.isDarwin
-                   && lib.versionOlder apple-sdk.version "10.15") [
-      apple-sdk_10_15
  ];

  mesonFlags = [
--- a/pkgs/development/libraries/memstream/default.nix
+++ b/pkgs/development/libraries/memstream/default.nix
@ -1,48 +0,0 @@
-{ lib, stdenv, fetchurl }:
-
-stdenv.mkDerivation rec {
-  pname = "memstream";
-  version = "0.1";
-
-  src = fetchurl {
-    url = "https://piumarta.com/software/memstream/memstream-${version}.tar.gz";
-    sha256 = "0kvdb897g7nyviaz72arbqijk2g2wa61cmi3l5yh48rzr49r3a3a";
-  };
-
-  postPatch = ''
-    substituteInPlace Makefile \
-      --replace-fail 'cc' '$(CC)'
-  '';
-
-  dontConfigure = true;
-
-  postBuild = ''
-    $AR rcs libmemstream.a memstream.o
-  '';
-
-  doCheck = stdenv.buildPlatform.canExecute stdenv.hostPlatform;
-  checkPhase = ''
-    runHook preCheck
-
-    ./test | grep "This is a test of memstream"
-
-    runHook postCheck
-  '';
-
-  installPhase = ''
-    runHook preInstall
-
-    install -D libmemstream.a "$out"/lib/libmemstream.a
-    install -D memstream.h "$out"/include/memstream.h
-
-    runHook postInstall
-  '';
-
-  meta = with lib; {
-    homepage = "https://www.piumarta.com/software/memstream/";
-    description = "memstream.c is an implementation of the POSIX function open_memstream() for BSD and BSD-like operating systems";
-    license = licenses.mit;
-    maintainers = with maintainers; [ veprbl ];
-    platforms = platforms.unix;
-  };
-}
--- a/pkgs/development/libraries/memstream/setup-hook.sh
+++ b/pkgs/development/libraries/memstream/setup-hook.sh
@ -1,6 +0,0 @@
-useMemstream () {
-  export NIX_CFLAGS_COMPILE="${NIX_CFLAGS_COMPILE-}${NIX_CFLAGS_COMPILE:+ }-include memstream.h";
-  export NIX_LDFLAGS="${NIX_LDFLAGS-}${NIX_LDFLAGS:+ }-lmemstream";
-}
-
-postHooks+=(useMemstream)
--- a/pkgs/development/libraries/qt-5/modules/qtbase.nix
+++ b/pkgs/development/libraries/qt-5/modules/qtbase.nix
@ -4,7 +4,7 @@
 , coreutils, bison, flex, gdb, gperf, lndir, perl, pkg-config, python3
 , which
  # darwin support
-, apple-sdk_13, darwinMinVersionHook, xcbuild
+, apple-sdk_13, xcbuild

 , dbus, fontconfig, freetype, glib, harfbuzz, icu, libdrm, libX11, libXcomposite
 , libXcursor, libXext, libXi, libXrender, libjpeg, libpng , libxcb
@ -39,13 +39,12 @@ let
    then "linux-generic-g++"
    else throw "Please add a qtPlatformCross entry for ${plat.config}";

-  # Per https://doc.qt.io/qt-5/macos.html#supported-versions: deployment target = 10.13, build SDK = 13.x or 14.x.
+  # Per https://doc.qt.io/qt-5/macos.html#supported-versions: build SDK = 13.x or 14.x.
  # Despite advertising support for the macOS 14 SDK, the build system sets the maximum to 13 and complains
  # about 14, so we just use that.
  deploymentTarget = "10.13";
  darwinVersionInputs = [
    apple-sdk_13
-    (darwinMinVersionHook deploymentTarget)
  ];
 in

@ -166,7 +165,7 @@ stdenv.mkDerivation (finalAttrs: ({
        --replace-fail 'CONFIG += ' 'CONFIG += no_default_rpath ' \
        --replace-fail \
          'QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.13' \
-          'QMAKE_MACOSX_DEPLOYMENT_TARGET = ${deploymentTarget}'
+          "QMAKE_MACOSX_DEPLOYMENT_TARGET = $MACOSX_DEPLOYMENT_TARGET"
    '' else lib.optionalString libGLSupported ''
      sed -i mkspecs/common/linux.conf \
          -e "/^QMAKE_INCDIR_OPENGL/ s|$|${lib.getDev libGL}/include|" \
@ -235,10 +234,6 @@ stdenv.mkDerivation (finalAttrs: ({
      ''-DNIXPKGS_LIBXCURSOR="${libXcursor.out}/lib/libXcursor"''
    ] ++ lib.optional libGLSupported ''-DNIXPKGS_MESA_GL="${libGL.out}/lib/libGL"''
    ++ lib.optional stdenv.hostPlatform.isLinux "-DUSE_X11"
-    ++ lib.optionals (stdenv.hostPlatform.system == "x86_64-darwin") [
-      # ignore "is only available on macOS 10.12.2 or newer" in obj-c code
-      "-Wno-error=unguarded-availability"
-    ]
    ++ lib.optionals withGtk3 [
      ''-DNIXPKGS_QGTK3_XDG_DATA_DIRS="${gtk3}/share/gsettings-schemas/${gtk3.name}"''
      ''-DNIXPKGS_QGTK3_GIO_EXTRA_MODULES="${dconf.lib}/lib/gio/modules"''
--- a/pkgs/development/python-modules/pymupdf/default.nix
+++ b/pkgs/development/python-modules/pymupdf/default.nix
@ -19,7 +19,6 @@
  jbig2dec,
  libjpeg_turbo,
  gumbo,
-  memstreamHook,

  # dependencies
  mupdf,
@ -75,7 +74,7 @@ buildPythonPackage rec {
    jbig2dec
    libjpeg_turbo
    gumbo
-  ] ++ lib.optionals (stdenv.system == "x86_64-darwin") [ memstreamHook ];
+  ];

  propagatedBuildInputs = [ mupdf-cxx ];

--- a/pkgs/development/python-modules/rdkit/default.nix
+++ b/pkgs/development/python-modules/rdkit/default.nix
@ -17,7 +17,6 @@
  numpy,
  pandas,
  pillow,
-  memorymappingHook,
 }:
 let
  external = {
@ -96,7 +95,7 @@ buildPythonPackage rec {
    eigen
    inchi
    maeparser
-  ] ++ lib.optionals (stdenv.system == "x86_64-darwin") [ memorymappingHook ];
+  ];

  dependencies = [
    numpy
--- a/pkgs/os-specific/darwin/apple-sdk-11.0/default.nix
+++ b/pkgs/os-specific/darwin/apple-sdk-11.0/default.nix
@ -12,30 +12,8 @@

 let
  mkStub = callPackage ../apple-sdk/mk-stub.nix { } "11.0";
-
-  stdenvs =
-    {
-      stdenv = overrideSDK stdenv "11.0";
-    }
-    // builtins.listToAttrs (
-      map
-        (v: {
-          name = "llvmPackages_${v}";
-          value = pkgs."llvmPackages_${v}" // {
-            stdenv = overrideSDK pkgs."llvmPackages_${v}".stdenv "11.0";
-          };
-        })
-        [
-          "12"
-          "13"
-          "14"
-          "15"
-          "16"
-        ]
-    );
 in
-stdenvs
-// lib.genAttrs [
+lib.genAttrs [
  "CLTools_Executables"
  "IOKit"
  "Libsystem"
@ -276,30 +254,17 @@ stdenvs
    "simd"
  ] mkStub;

-  callPackage = newScope (
-    lib.optionalAttrs stdenv.hostPlatform.isDarwin (
-      stdenvs // { inherit (pkgs.darwin.apple_sdk_11_0) rustPlatform; }
-    )
-  );
-
-  rustPlatform =
-    pkgs.makeRustPlatform {
-      inherit (pkgs.darwin.apple_sdk_11_0) stdenv;
-      inherit (pkgs) rustc cargo;
-    }
-    // {
-      inherit
-        (pkgs.callPackage ../../../build-support/rust/hooks {
-          inherit (pkgs.darwin.apple_sdk_11_0) stdenv;
-          inherit (pkgs) cargo rustc;
-        })
-        bindgenHook
-        ;
-    };
-
-  stdenv = overrideSDK stdenv "11.0";
-
-  xcodebuild = pkgs.xcodebuild;
+  inherit (pkgs)
+    callPackage
+    stdenv
+    llvmPackages_12
+    llvmPackages_13
+    llvmPackages_14
+    llvmPackages_15
+    llvmPackages_16
+    rustPlatform
+    xcodebuild
+    ;

  version = "11.0";
 }
--- a/pkgs/os-specific/darwin/apple-sdk/default.nix
+++ b/pkgs/os-specific/darwin/apple-sdk/default.nix
@ -1,272 +0,0 @@
-# Compatibility stubs for packages that used the old SDK frameworks.
-# TODO(@reckenrode) Make these stubs warn after framework usage has been cleaned up in nixpkgs.
-{ lib, callPackage }:
-
-let
-  mkStub = callPackage ./mk-stub.nix { } "10.12";
-
-  frameworks = lib.genAttrs [
-    "AGL"
-    "AVFoundation"
-    "AVKit"
-    "Accelerate"
-    "Accounts"
-    "AddressBook"
-    "AppKit"
-    "AppKitScripting"
-    "AppleScriptKit"
-    "AppleScriptObjC"
-    "ApplicationServices"
-    "AudioToolbox"
-    "AudioUnit"
-    "AudioVideoBridging"
-    "Automator"
-    "CFNetwork"
-    "CalendarStore"
-    "Carbon"
-    "Cocoa"
-    "Collaboration"
-    "ContactsPersistence"
-    "CoreAudio"
-    "CoreAudioKit"
-    "CoreBluetooth"
-    "CoreData"
-    "CoreFoundation"
-    "CoreGraphics"
-    "CoreImage"
-    "CoreLocation"
-    "CoreMIDI"
-    "CoreMIDIServer"
-    "CoreMedia"
-    "CoreMediaIO"
-    "CoreServices"
-    "CoreSymbolication"
-    "CoreText"
-    "CoreVideo"
-    "CoreWLAN"
-    "DVDPlayback"
-    "DebugSymbols"
-    "DirectoryService"
-    "DiscRecording"
-    "DiscRecordingUI"
-    "DiskArbitration"
-    "DisplayServices"
-    "EventKit"
-    "ExceptionHandling"
-    "FWAUserLib"
-    "ForceFeedback"
-    "Foundation"
-    "GLKit"
-    "GLUT"
-    "GSS"
-    "GameCenter"
-    "GameController"
-    "GameKit"
-    "GameplayKit"
-    "Hypervisor"
-    "ICADevices"
-    "IMServicePlugIn"
-    "IOBluetooth"
-    "IOBluetoothUI"
-    "IOKit"
-    "IOSurface"
-    "ImageCaptureCore"
-    "ImageIO"
-    "InputMethodKit"
-    "InstallerPlugins"
-    "InstantMessage"
-    "JavaFrameEmbedding"
-    "JavaNativeFoundation"
-    "JavaRuntimeSupport"
-    "JavaScriptCore"
-    "JavaVM"
-    "Kerberos"
-    "Kernel"
-    "LDAP"
-    "LatentSemanticMapping"
-    "LocalAuthentication"
-    "MapKit"
-    "MediaAccessibility"
-    "MediaPlayer"
-    "MediaToolbox"
-    "Metal"
-    "MetalKit"
-    "ModelIO"
-    "MultitouchSupport"
-    "NetFS"
-    "OSAKit"
-    "OpenAL"
-    "OpenCL"
-    "OpenDirectory"
-    "OpenGL"
-    "PCSC"
-    "PreferencePanes"
-    "PubSub"
-    "QTKit"
-    "Quartz"
-    "QuartzCore"
-    "QuickLook"
-    "QuickTime"
-    "SceneKit"
-    "ScreenSaver"
-    "Scripting"
-    "ScriptingBridge"
-    "Security"
-    "SecurityFoundation"
-    "SecurityInterface"
-    "ServiceManagement"
-    "SkyLight"
-    "Social"
-    "SpriteKit"
-    "StoreKit"
-    "SyncServices"
-    "System"
-    "SystemConfiguration"
-    "TWAIN"
-    "Tcl"
-    "UIFoundation"
-    "VideoDecodeAcceleration"
-    "VideoToolbox"
-    "WebKit"
-    "vmnet"
-  ] mkStub;
-
-  bareFrameworks = lib.genAttrs [
-    "AGL"
-    "AVFoundation"
-    "AVKit"
-    "Accelerate"
-    "Accounts"
-    "AddressBook"
-    "AppKit"
-    "AppKitScripting"
-    "AppleScriptKit"
-    "AppleScriptObjC"
-    "ApplicationServices"
-    "AudioToolbox"
-    "AudioUnit"
-    "AudioVideoBridging"
-    "Automator"
-    "CFNetwork"
-    "CalendarStore"
-    "Carbon"
-    "Cocoa"
-    "Collaboration"
-    "CoreAudio"
-    "CoreAudioKit"
-    "CoreBluetooth"
-    "CoreData"
-    "CoreFoundation"
-    "CoreGraphics"
-    "CoreImage"
-    "CoreLocation"
-    "CoreMIDI"
-    "CoreMIDIServer"
-    "CoreMedia"
-    "CoreMediaIO"
-    "CoreServices"
-    "CoreText"
-    "CoreVideo"
-    "CoreWLAN"
-    "DVDPlayback"
-    "DirectoryService"
-    "DiscRecording"
-    "DiscRecordingUI"
-    "DiskArbitration"
-    "EventKit"
-    "ExceptionHandling"
-    "FWAUserLib"
-    "ForceFeedback"
-    "Foundation"
-    "GLKit"
-    "GLUT"
-    "GSS"
-    "GameCenter"
-    "GameController"
-    "GameKit"
-    "GameplayKit"
-    "Hypervisor"
-    "ICADevices"
-    "IMServicePlugIn"
-    "IOBluetooth"
-    "IOBluetoothUI"
-    "IOKit"
-    "IOSurface"
-    "ImageCaptureCore"
-    "ImageIO"
-    "InputMethodKit"
-    "InstallerPlugins"
-    "InstantMessage"
-    "JavaFrameEmbedding"
-    "JavaNativeFoundation"
-    "JavaRuntimeSupport"
-    "JavaScriptCore"
-    "JavaVM"
-    "Kerberos"
-    "Kernel"
-    "LDAP"
-    "LatentSemanticMapping"
-    "LocalAuthentication"
-    "MapKit"
-    "MediaAccessibility"
-    "MediaPlayer"
-    "MediaToolbox"
-    "Metal"
-    "MetalKit"
-    "ModelIO"
-    "NetFS"
-    "OSAKit"
-    "OpenAL"
-    "OpenCL"
-    "OpenDirectory"
-    "OpenGL"
-    "PCSC"
-    "PreferencePanes"
-    "PubSub"
-    "QTKit"
-    "Quartz"
-    "QuartzCore"
-    "QuickLook"
-    "QuickTime"
-    "SceneKit"
-    "ScreenSaver"
-    "Scripting"
-    "ScriptingBridge"
-    "Security"
-    "SecurityFoundation"
-    "SecurityInterface"
-    "ServiceManagement"
-    "Social"
-    "SpriteKit"
-    "StoreKit"
-    "SyncServices"
-    "System"
-    "SystemConfiguration"
-    "TWAIN"
-    "Tcl"
-    "VideoDecodeAcceleration"
-    "VideoToolbox"
-    "WebKit"
-    "vmnet"
-  ] mkStub;
-in
-{
-  inherit bareFrameworks frameworks;
-
-  libs = lib.genAttrs [
-    "Xplugin"
-    "sandbox"
-    "simd"
-    "utmp"
-    "xpc"
-  ] mkStub;
-
-  version = "10.12";
-}
-// lib.genAttrs [
-  "darwin-stubs"
-  "Libsystem"
-  "objc4"
-  "sdk"
-  "sdkRoot"
-] mkStub
--- a/pkgs/os-specific/darwin/apple-source-releases/IOKitTools/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/IOKitTools/package.nix
@ -1,7 +1,6 @@
 {
  lib,
-  apple-sdk_11,
-  darwinMinVersionHook,
+  apple-sdk,
  mkAppleDerivation,
  ncurses,
  pkg-config,
@ -9,8 +8,8 @@
 }:

 let
-  iokitUser = apple-sdk_11.sourceRelease "IOKitUser";
-  xnu = apple-sdk_11.sourceRelease "xnu";
+  iokitUser = apple-sdk.sourceRelease "IOKitUser";
+  xnu = apple-sdk.sourceRelease "xnu";

  privateHeaders = stdenvNoCC.mkDerivation {
    name = "IOKitTools-deps-private-headers";
@ -52,9 +51,7 @@ mkAppleDerivation {

  nativeBuildInputs = [ pkg-config ];
  buildInputs = [
-    apple-sdk_11
-    apple-sdk_11.privateFrameworksHook
-    (darwinMinVersionHook "11.0")
+    apple-sdk.privateFrameworksHook
    ncurses
  ];

--- a/pkgs/os-specific/darwin/apple-source-releases/adv_cmds/meson.build.in
+++ b/pkgs/os-specific/darwin/apple-source-releases/adv_cmds/meson.build.in
@ -4,8 +4,6 @@
 # Project settings
 project('adv_cmds', 'c', 'cpp', version : '@version@')

-sdk_version = get_option('sdk_version')
-

 # Dependencies
 cc = meson.get_compiler('c')
@ -190,8 +188,7 @@ install_man('ps/ps.1')

 executable(
    'stty',
-    build_by_default : sdk_version.version_compare('>=11.3'),
-    install : sdk_version.version_compare('>=11.3'),
+    install : true,
    sources : [
        'stty/cchar.c',
        'stty/gfmt.c',
@ -202,9 +199,7 @@ executable(
        'stty/util.c',
    ],
 )
-if sdk_version.version_compare('>=11.3')
-    install_man('stty/stty.1')
-endif
+install_man('stty/stty.1')

 executable(
    'tabs',
--- a/pkgs/os-specific/darwin/apple-source-releases/adv_cmds/meson.options
+++ b/pkgs/os-specific/darwin/apple-source-releases/adv_cmds/meson.options
@ -1 +0,0 @@
-option('sdk_version', type : 'string')
--- a/pkgs/os-specific/darwin/apple-source-releases/adv_cmds/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/adv_cmds/package.nix
@ -1,7 +1,6 @@
 {
  lib,
  apple-sdk,
-  apple-sdk_11,
  bison,
  flex,
  libxo,
@ -12,9 +11,9 @@
 }:

 let
-  Libc = apple-sdk_11.sourceRelease "Libc";
-  libplatform = apple-sdk_11.sourceRelease "libplatform";
-  xnu = apple-sdk_11.sourceRelease "xnu";
+  Libc = apple-sdk.sourceRelease "Libc";
+  libplatform = apple-sdk.sourceRelease "libplatform";
+  xnu = apple-sdk.sourceRelease "xnu";

  privateHeaders = stdenvNoCC.mkDerivation {
    name = "adv_cmds-deps-private-headers";
@ -41,11 +40,6 @@ mkAppleDerivation {

  xcodeHash = "sha256-2p/JyMPw6acHphvzkaJXPXGwxCUEoxryCejww5kPHvQ=";

-  patches = [
-    # Use older API when running on systems prior to 11.3.
-    ./patches/0001-Fall-back-to-task_read_pid-on-older-systems.patch
-  ];
-
  postPatch = ''
    # Meson generators require using @BASENAME@ in the output.
    substituteInPlace mklocale/lex.l \
@ -67,8 +61,6 @@ mkAppleDerivation {
  env.NIX_CFLAGS_COMPILE = "-I${privateHeaders}/include";

  buildInputs = [
-    # Use the 11.3 SDK because CMake depends on adv_cmds.ps, so it can’t simply be omitted when using an older SDK.
-    apple-sdk_11
    libxo
    ncurses
  ];
@ -79,12 +71,6 @@ mkAppleDerivation {
    pkg-config
  ];

-  mesonFlags = [
-    # Even though adv_cmds is built with a newer SDK, the default SDK is still the deployment target.
-    # Don’t build packages that use newer APIs unnecessarily.
-    (lib.mesonOption "sdk_version" (lib.getVersion apple-sdk))
-  ];
-
  postInstall = ''
    moveToOutput bin/ps "$ps"
    ln -s "$ps/bin/ps" "$out/bin/ps"
--- a/pkgs/os-specific/darwin/apple-source-releases/adv_cmds/patches/0001-Fall-back-to-task_read_pid-on-older-systems.patch
+++ b/pkgs/os-specific/darwin/apple-source-releases/adv_cmds/patches/0001-Fall-back-to-task_read_pid-on-older-systems.patch
@ -1,38 +0,0 @@
-From c05a83d29349c6ae2fd8084a48ea51c8e8bf23f2 Mon Sep 17 00:00:00 2001
-From: Randy Eckenrode <randy@largeandhighquality.com>
-Date: Sun, 18 Aug 2024 10:29:16 -0400
-Subject: [PATCH] Fall back to `task_read_pid` on older systems
-
---
- ps/tasks.c | 8 +++++---
- 1 file changed, 5 insertions(+), 3 deletions(-)
-
-diff --git a/ps/tasks.c b/ps/tasks.c
-index d2fcb07..068c985 100644
--- a/ps/tasks.c
-+++ b/ps/tasks.c
-@@ -25,8 +25,6 @@
- #include <mach/shared_memory_server.h>
- #include <mach/mach_vm.h>
- 
-extern kern_return_t task_read_for_pid(task_port_t task, pid_t pid, task_port_t *target);
-
- #define STATE_MAX       7 
-                 
- int     
-@@ -98,7 +96,11 @@ int get_task_info (KINFO *ki)
- 	ki->state = STATE_MAX;
- 
- 	pid = KI_PROC(ki)->p_pid;
-    error = task_read_for_pid(mach_task_self(), pid, &ki->task);
-+	if (__builtin_available(macos 11.3, *)) {
-+		error = task_read_for_pid(mach_task_self(), pid, &ki->task);
-+	} else {
-+		error = task_for_pid(mach_task_self(), pid, &ki->task);
-+	}
- 	if (error != KERN_SUCCESS) {
- #ifdef DEBUG
-         mach_error("Error calling task_read_for_pid()", error);
-- 
-2.44.1
-
--- a/pkgs/os-specific/darwin/apple-source-releases/copyfile/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/copyfile/package.nix
@ -1,16 +1,12 @@
 {
  lib,
  apple-sdk,
-  apple-sdk_10_13,
-  apple-sdk_11,
  mkAppleDerivation,
  stdenvNoCC,
 }:

 let
-  # The 10.12 SDK doesn’t have the files needed in the same places or possibly at all.
-  # Just use the 11.x SDK to make things easier.
-  xnu = apple-sdk_11.sourceRelease "xnu";
+  xnu = apple-sdk.sourceRelease "xnu";

  privateHeaders = stdenvNoCC.mkDerivation {
    name = "copyfile-deps-private-headers";
@ -90,9 +86,5 @@ mkAppleDerivation {

  env.NIX_CFLAGS_COMPILE = "-I${privateHeaders}/include";

-  buildInputs = lib.optionals (lib.versionOlder (lib.getVersion apple-sdk) "10.13") [
-    (apple-sdk_10_13.override { enableBootstrap = true; })
-  ];
-
  meta.description = "Darwin file copying library";
 }
--- a/pkgs/os-specific/darwin/apple-source-releases/diskdev_cmds/meson.build.in
+++ b/pkgs/os-specific/darwin/apple-source-releases/diskdev_cmds/meson.build.in
@ -110,7 +110,6 @@ executable(
        '-DMNT_STRICTATIME=0x80000000',
        # https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/attr.h#L300
        '-DVOL_CAP_FMT_SEALED=0x02000000',
-        '-D_DARWIN_USE_64_BIT_INODE=1', # Needed with older SDKs to ensure 64-bit `struct statfs`.
    ],
    dependencies : [ apfs, libdisk ],
    include_directories : [ 'edt_fstab', 'fsck.tproj', 'mount_flags_dir' ],
--- a/pkgs/os-specific/darwin/apple-source-releases/diskdev_cmds/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/diskdev_cmds/package.nix
@ -1,7 +1,6 @@
 {
  lib,
  apple-sdk,
-  apple-sdk_11,
  libutil,
  mkAppleDerivation,
  removefile,
@ -9,8 +8,8 @@
 }:

 let
-  Libc = apple-sdk_11.sourceRelease "Libc";
-  xnu = apple-sdk_11.sourceRelease "xnu";
+  Libc = apple-sdk.sourceRelease "Libc";
+  xnu = apple-sdk.sourceRelease "xnu";

  privateHeaders = stdenvNoCC.mkDerivation {
    name = "diskdev_cmds-deps-private-headers";
@ -55,13 +54,6 @@ mkAppleDerivation {
    ''
      substituteInPlace mount.tproj/mount.c \
        --replace-fail 'sysctlbyname ("vfs.generic.apfs.rosp", &is_rosp, &rospsize, NULL, NULL);' 'sysctlbyname ("vfs.generic.apfs.rosp", &is_rosp, &rospsize, NULL, 0);'
-    ''
-    # The first reserved uint32 is used for the extended flags on 11.0 and newer, and
-    # only use sysexit_np when the version is 10.14 or newer.
-    + lib.optionalString (lib.versionOlder (lib.getVersion apple-sdk) "11.0") ''
-      substituteInPlace mount.tproj/mount.c \
-        --replace-fail 'sfp->f_flags_ext' 'sfp->f_reserved[0]' \
-        --replace-fail 'sysexit == -1' '__builtin_available(macOS 10.14, *) && sysexit == -1'
    '';

  env.NIX_CFLAGS_COMPILE = "-I${privateHeaders}/include";
--- a/pkgs/os-specific/darwin/apple-source-releases/file_cmds/meson.build.in
+++ b/pkgs/os-specific/darwin/apple-source-releases/file_cmds/meson.build.in
@ -13,7 +13,6 @@ cc = meson.get_compiler('c')

 core_foundation = dependency('appleframeworks', modules : 'CoreFoundation')

-libbsd = dependency('libbsd-overlay', required : false)
 bzip2 = dependency('bzip2')
 xz = dependency('liblzma')
 libxo = dependency('libxo')
@ -24,34 +23,6 @@ removefile = cc.find_library('removefile')
 libutil = cc.find_library('util')


-# Compatibility tests
-utimensat_test = '''
-#include <stdlib.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-int main(int argc, char* argv[]) {
-    return utimensat(AT_FDCWD, NULL, NULL, 0);
-}
-'''
-
-rpmatch_test = '''
-#include <stdlib.h>
-int main(int argc, char* argv[]) {
-    return rpmatch("NO");
-}
-'''
-
-has_utimensat = cc.compiles(utimensat_test, name : 'supports utimensat')
-utimensat_c_args = has_utimensat ? [ ] : [ '-include', 'time_compat.h', '-I' + meson.source_root() + '/compat' ]
-utimensat_sources = has_utimensat ? [ ] : [ 'compat/time_compat.c' ]
-
-has_rpmatch = cc.compiles(rpmatch_test, name : 'supports rpmatch')
-rpmatch_c_args = has_rpmatch ? [ ] : [ '-include', 'rpmatch_compat.h', '-I' + meson.source_root() + '/compat' ]
-rpmatch_sources = has_rpmatch ? [ ] : [ 'compat/rpmatch_compat.c' ]
-
-compat_link_args = not (has_utimensat and has_rpmatch) ? [ '-Wl,-undefined,dynamic_lookup' ] : [ ]
-
-
 # Binaries
 executable(
    'chflags',
@ -107,14 +78,10 @@ install_man('cksum/sum.1')

 executable(
    'compress',
-    c_args : [ utimensat_c_args, rpmatch_c_args ],
    install : true,
-    link_args : compat_link_args,
    sources: [
        'compress/compress.c',
        'compress/zopen.c',
-        utimensat_sources,
-        rpmatch_sources,
    ]
 )
 install_man('compress/compress.1')
@ -130,18 +97,11 @@ install_man('compress/zopen.3')

 executable(
    'cp',
-    c_args : [
-        utimensat_c_args,
-        rpmatch_c_args,
-    ],
    dependencies : [ copyfile ],
    install : true,
-    link_args : compat_link_args,
    sources: [
        'cp/cp.c',
        'cp/utils.c',
-        utimensat_sources,
-        rpmatch_sources,
    ]
 )
 install_man('cp/cp.1')
@ -213,13 +173,10 @@ install_symlink(

 executable(
    'install-bin', # Meson reserves the name “install”, so use a different name and rename in install phase.
-    c_args : utimensat_c_args,
    dependencies : [ copyfile ],
    install : true,
-    link_args : compat_link_args,
    sources: [
        'install/xinstall.c',
-        utimensat_sources,
    ],
 )
 install_man('install/install.1')
@ -260,7 +217,7 @@ executable(
        # https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/stat.h#L520
        '-DSF_DATALESS=0x40000000',
    ],
-    dependencies : [ libbsd, libutil ],
+    dependencies : [ libutil ],
    install : true,
    sources: [
        'ls/cmp.c',
@ -297,17 +254,6 @@ install_man('mknod/mknod.8')

 executable(
    'mtree',
-    # Define these flags for the 10.12 SDK assuming that users on older systems can’t encounter dataless files.
-    c_args : [
-        # https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/stat.h#L520
-        '-DSF_DATALESS=0x40000000',
-        # https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/resource.h#L598
-        '-DIOPOL_TYPE_VFS_MATERIALIZE_DATALESS_FILES=3',
-        # https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/resource.h#L640
-        '-DIOPOL_MATERIALIZE_DATALESS_FILES_OFF=1',
-        # https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/attr.h#L562
-        '-DATTR_CMNEXT_LINKID=0x00000010',
-    ],
    dependencies : [ core_foundation, removefile ],
    install : true,
    sources: [
@ -328,14 +274,10 @@ install_man('mtree/mtree.8')

 executable(
    'mv',
-    c_args : [ utimensat_c_args, rpmatch_c_args ],
    dependencies : [ copyfile ],
    install : true,
-    link_args : compat_link_args,
    sources: [
        'mv/mv.c',
-        utimensat_sources,
-        rpmatch_sources,
    ],
 )
 install_man('mv/mv.1')
@ -375,13 +317,10 @@ install_man('pax/pax.1')

 executable(
    'rm',
-    c_args : rpmatch_c_args,
    dependencies : [ removefile ],
    install : true,
-    link_args : compat_link_args,
    sources: [
        'rm/rm.c',
-        rpmatch_sources,
    ],
 )
 install_man('rm/rm.1')
@ -424,12 +363,9 @@ install_man('stat/readlink.1')

 executable(
    'touch',
-    c_args : utimensat_c_args,
    install : true,
-    link_args : compat_link_args,
    sources: [
        'touch/touch.c',
-        utimensat_sources,
    ],
 )
 install_man('touch/touch.1')
--- a/pkgs/os-specific/darwin/apple-source-releases/file_cmds/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/file_cmds/package.nix
@ -1,11 +1,9 @@
 {
  lib,
  apple-sdk,
-  apple-sdk_11,
  bzip2,
  copyfile,
  less,
-  libbsd,
  libutil,
  libxo,
  mkAppleDerivation,
@ -20,12 +18,9 @@
 let
  Libc = apple-sdk.sourceRelease "Libc";
  Libinfo = apple-sdk.sourceRelease "Libinfo";
-
-  # The 10.12 SDK doesn’t have the files needed in the same places or possibly at all.
-  # Just use the 11.0 SDK to make things easier.
-  CommonCrypto = apple-sdk_11.sourceRelease "CommonCrypto";
-  libplatform = apple-sdk_11.sourceRelease "libplatform";
-  xnu = apple-sdk_11.sourceRelease "xnu";
+  CommonCrypto = apple-sdk.sourceRelease "CommonCrypto";
+  libplatform = apple-sdk.sourceRelease "libplatform";
+  xnu = apple-sdk.sourceRelease "xnu";

  privateHeaders = stdenvNoCC.mkDerivation {
    name = "file_cmds-deps-private-headers";
@ -46,9 +41,6 @@ let
      install -D -t "$out/include/System/sys" \
        '${xnu}/bsd/sys/fsctl.h'

-      # Needed by older private headers.
-      touch "$out/include/CrashReporterClient.h"
-
      mkdir -p "$out/include/apfs"
      # APFS group is 'J' per https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/vfs/vfs_fsevents.c#L1054
      cat <<EOF > "$out/include/apfs/apfs_fsctl.h"
@ -64,11 +56,6 @@ let
      #define APFSIOC_XDSTREAM_OBJ_ID _IOWR('J', 53, struct xdstream_obj_id)
      EOF

-      # Prevent an error when using the old availability headers from the 10.12 SDK.
-      substituteInPlace "$out/include/CommonCrypto/CommonDigestSPI.h" \
-        --replace-fail 'API_DEPRECATED(CC_DIGEST_DEPRECATION_WARNING, macos(10.4, 10.13), ios(5.0, 11.0))' "" \
-        --replace-fail 'API_DEPRECATED(CC_DIGEST_DEPRECATION_WARNING, macos(10.4, 10.15), ios(5.0, 13.0))' ""
-
      cat <<EOF > "$out/include/sys/types.h"
      #pragma once
      #include <stdint.h>
@ -108,26 +95,21 @@ mkAppleDerivation {
    ./patches/0001-Add-missing-extern-unix2003_compat-to-ls.patch
    # Add missing conditional to avoid using private APFS APIs that we lack headers for using.
    ./patches/0002-Add-missing-ifdef-for-private-APFS-APIs.patch
-    # Add implementations of missing functions for older SDKs
-    ./patches/0003-Add-implementations-of-missing-APIs-for-older-SDKs.patch
  ];

  nativeBuildInputs = [ pkg-config ];

  env.NIX_CFLAGS_COMPILE = "-I${privateHeaders}/include";

-  buildInputs =
-    [
-      bzip2
-      copyfile
-      libutil
-      libxo
-      removefile
-      xz
-      zlib
-    ]
-    # ls needs strtonum, which requires the 11.0 SDK.
-    ++ lib.optionals (lib.versionOlder (lib.getVersion apple-sdk) "11.0") [ libbsd ];
+  buildInputs = [
+    bzip2
+    copyfile
+    libutil
+    libxo
+    removefile
+    xz
+    zlib
+  ];

  postInstall = ''
    HOST_PATH='${lib.getBin shell_cmds}/bin' patchShebangs --host "$out/bin"
--- a/pkgs/os-specific/darwin/apple-source-releases/file_cmds/patches/0003-Add-implementations-of-missing-APIs-for-older-SDKs.patch
+++ b/pkgs/os-specific/darwin/apple-source-releases/file_cmds/patches/0003-Add-implementations-of-missing-APIs-for-older-SDKs.patch
@ -1,113 +0,0 @@
-From 9d21ed4cb6b56966a7962227a33c0e1986996cb1 Mon Sep 17 00:00:00 2001
-From: Randy Eckenrode <randy@largeandhighquality.com>
-Date: Sun, 8 Sep 2024 09:46:49 -0400
-Subject: [PATCH 3/3] Add implementations of missing APIs for older SDKs
-
---
- compat/rpmatch_compat.c | 10 ++++++++++
- compat/rpmatch_compat.h |  6 ++++++
- compat/time_compat.c    | 38 ++++++++++++++++++++++++++++++++++++++
- compat/time_compat.h    | 16 ++++++++++++++++
- 4 files changed, 70 insertions(+)
- create mode 100644 compat/rpmatch_compat.c
- create mode 100644 compat/rpmatch_compat.h
- create mode 100644 compat/time_compat.c
- create mode 100644 compat/time_compat.h
-
-diff --git a/compat/rpmatch_compat.c b/compat/rpmatch_compat.c
-new file mode 100644
-index 0000000..8eb99c3
--- /dev/null
-+++ b/compat/rpmatch_compat.c
-@@ -0,0 +1,10 @@
-+// SPDX-License-Identifier: APSL-2.0
-+// utimensat written by Randy Eckenrode © 2024
-+
-+#include "rpmatch_compat.h"
-+
-+#include <stdlib.h>
-+
-+int rpmatch(const char *response) {
-+	return response != NULL && (response[0] == 'y' || response[0] == 'Y');
-+}
-diff --git a/compat/rpmatch_compat.h b/compat/rpmatch_compat.h
-new file mode 100644
-index 0000000..a13b64b
--- /dev/null
-+++ b/compat/rpmatch_compat.h
-@@ -0,0 +1,6 @@
-+// SPDX-License-Identifier: APSL-2.0
-+// utimensat written by Randy Eckenrode © 2024
-+
-+#pragma once
-+
-+extern int rpmatch(const char *response);
-diff --git a/compat/time_compat.c b/compat/time_compat.c
-new file mode 100644
-index 0000000..becf778
--- /dev/null
-+++ b/compat/time_compat.c
-@@ -0,0 +1,38 @@
-+// SPDX-License-Identifier: APSL-2.0
-+// utimensat written by Randy Eckenrode © 2024
-+
-+#include "time_compat.h"
-+
-+#define futimens gzip_futimens
-+#include "gzip/futimens.c"
-+#undef futimens
-+
-+#include <sys/fcntl.h>
-+#include <unistd.h>
-+
-+#if __MAC_OS_X_VERSION_MIN_REQUIRED < 101300
-+extern int utimensat(int dirfd, const char* pathname, const struct timespec times[_Nullable 2], int flags);
-+extern int futimens(int fd, const struct timespec times[_Nullable 2]);
-+#endif
-+
-+int compat_utimensat(int dirfd, const char* pathname, const struct timespec times[_Nullable 2], int flags) {
-+	if (__builtin_available(macOS 10.13, *)) {
-+		return utimensat(dirfd, pathname, times, flags);
-+	} else {
-+		int fd = openat(dirfd, pathname, flags);
-+		if (fd == -1) { return -1; }
-+		
-+		int retval = compat_futimens(fd, times);
-+		if (close(fd) == -1) { return -1; }
-+		
-+		return retval;
-+	}
-+}
-+
-+int compat_futimens(int fd, const struct timespec times[_Nullable 2]) {
-+	if (__builtin_available(macOS 10.13, *)) {
-+		return futimens(fd, times);
-+	} else {
-+		return gzip_futimens(fd, times);
-+	}
-+}
-diff --git a/compat/time_compat.h b/compat/time_compat.h
-new file mode 100644
-index 0000000..f07a7ed
--- /dev/null
-+++ b/compat/time_compat.h
-@@ -0,0 +1,16 @@
-+// SPDX-License-Identifier: APSL-2.0
-+// utimensat written by Randy Eckenrode © 2024
-+
-+#pragma once
-+
-+#include <time.h>
-+
-+// https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/stat.h#L578-L579
-+#define UTIME_NOW  -1
-+#define UTIME_OMIT -2
-+
-+#define utimensat compat_utimensat
-+#define futimens compat_futimens
-+
-+extern int compat_utimensat(int dirfd, const char* pathname, const struct timespec times[_Nullable 2], int flags);
-+extern int compat_futimens(int fd, const struct timespec times[_Nullable 2]);
-- 
-2.46.0
-
--- a/pkgs/os-specific/darwin/apple-source-releases/libpcap/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/libpcap/package.nix
@ -1,6 +1,5 @@
 {
  lib,
-  apple-sdk_11,
  apple-sdk_15,
  bison,
  bluez,
@ -110,8 +109,6 @@ mkAppleDerivation {
    flex
  ] ++ lib.optionals withBluez [ bluez.dev ];

-  buildInputs = [ apple-sdk_11 ];
-
  meta = {
    description = "Packet Capture Library (with Apple modifications)";
    mainProgram = "pcap-config";
--- a/pkgs/os-specific/darwin/apple-source-releases/libresolv/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/libresolv/package.nix
@ -1,15 +1,15 @@
 {
  lib,
-  apple-sdk_11,
+  apple-sdk,
  mkAppleDerivation,
 }:

 let
-  configd = apple-sdk_11.sourceRelease "configd";
-  Libinfo = apple-sdk_11.sourceRelease "Libinfo";
+  configd = apple-sdk.sourceRelease "configd";
+  Libinfo = apple-sdk.sourceRelease "Libinfo";

  # `arpa/nameser_compat.h` is included in the Libc source release instead of libresolv.
-  Libc = apple-sdk_11.sourceRelease "Libc";
+  Libc = apple-sdk.sourceRelease "Libc";
 in
 mkAppleDerivation {
  releaseName = "libresolv";
@ -27,13 +27,6 @@ mkAppleDerivation {
    ln -s "$NIX_BUILD_TOP/$sourceRoot/nameser.h" "$sourceRoot/arpa/nameser.h"
  '';

-  # Remove unsupported availability annotations to support SDK without updated availability headers.
-  postPatch = ''
-    substituteInPlace dns_util.h \
-      --replace-fail 'API_DEPRECATED_BEGIN("dns_util is deprecated.", macos(10.0, 13.0), ios(1.0, 16.0), watchos(1.0, 9.0), tvos(1.0, 16.0))' "" \
-      --replace-fail API_DEPRECATED_END ""
-  '';
-
  env.NIX_CFLAGS_COMPILE = "-I${configd}/dnsinfo -I${Libinfo}/lookup.subproj";

  postInstall = ''
--- a/pkgs/os-specific/darwin/apple-source-releases/mail_cmds/meson.build.in
+++ b/pkgs/os-specific/darwin/apple-source-releases/mail_cmds/meson.build.in
@ -9,28 +9,10 @@ project('mail_cmds', 'c', version : '@version@')
 cc = meson.get_compiler('c')


-# Compatibility tests
-utimensat_test = '''
-#include <stdlib.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-int main(int argc, char* argv[]) {
-    return utimensat(AT_FDCWD, NULL, NULL, 0);
-}
-'''
-
-has_utimensat = cc.compiles(utimensat_test, name : 'supports utimensat')
-utimensat_c_args = has_utimensat ? [ ] : [ '-include', 'time_compat.h', '-I' + meson.source_root() + '/compat' ]
-utimensat_sources = has_utimensat ? [ ] : [ 'compat/time_compat.c' ]
-
-compat_link_args = not has_utimensat ? [ '-Wl,-undefined,dynamic_lookup' ] : [ ]
-
 # Binaries
 executable(
    'mail',
-    c_args : utimensat_c_args,
    install : true,
-    link_args : compat_link_args,
    sources : [
        'mail/cmd1.c',
        'mail/cmd2.c',
@ -55,7 +37,6 @@ executable(
        'mail/v7.local.c',
        'mail/vars.c',
        'mail/version.c',
-        utimensat_sources,
    ],
 )
 install_man('mail/mail.1')
--- a/pkgs/os-specific/darwin/apple-source-releases/mail_cmds/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/mail_cmds/package.nix
@ -16,14 +16,5 @@ mkAppleDerivation {

  xcodeHash = "sha256-6rBflDgQkqWDc8XPLgKIO703bMamg2QlhUnP71hBX3I=";

-  patches = [
-    # Add implementations of missing functions for older SDKs
-    ./patches/0003-Add-implementations-of-missing-APIs-for-older-SDKs.patch
-  ];
-
-  postPatch = ''
-    cp '${file_cmds.src}/gzip/futimens.c' compat/futimens.c
-  '';
-
  meta.description = "Traditional mail command for Darwin";
 }
--- a/pkgs/os-specific/darwin/apple-source-releases/mail_cmds/patches/0003-Add-implementations-of-missing-APIs-for-older-SDKs.patch
+++ b/pkgs/os-specific/darwin/apple-source-releases/mail_cmds/patches/0003-Add-implementations-of-missing-APIs-for-older-SDKs.patch
@ -1,113 +0,0 @@
-From 9d21ed4cb6b56966a7962227a33c0e1986996cb1 Mon Sep 17 00:00:00 2001
-From: Randy Eckenrode <randy@largeandhighquality.com>
-Date: Sun, 8 Sep 2024 09:46:49 -0400
-Subject: [PATCH 3/3] Add implementations of missing APIs for older SDKs
-
---
- compat/rpmatch_compat.c | 10 ++++++++++
- compat/rpmatch_compat.h |  6 ++++++
- compat/time_compat.c    | 38 ++++++++++++++++++++++++++++++++++++++
- compat/time_compat.h    | 16 ++++++++++++++++
- 4 files changed, 70 insertions(+)
- create mode 100644 compat/rpmatch_compat.c
- create mode 100644 compat/rpmatch_compat.h
- create mode 100644 compat/time_compat.c
- create mode 100644 compat/time_compat.h
-
-diff --git a/compat/rpmatch_compat.c b/compat/rpmatch_compat.c
-new file mode 100644
-index 0000000..8eb99c3
--- /dev/null
-+++ b/compat/rpmatch_compat.c
-@@ -0,0 +1,10 @@
-+// SPDX-License-Identifier: APSL-2.0
-+// utimensat written by Randy Eckenrode © 2024
-+
-+#include "rpmatch_compat.h"
-+
-+#include <stdlib.h>
-+
-+int rpmatch(const char *response) {
-+	return response != NULL && (response[0] == 'y' || response[0] == 'Y');
-+}
-diff --git a/compat/rpmatch_compat.h b/compat/rpmatch_compat.h
-new file mode 100644
-index 0000000..a13b64b
--- /dev/null
-+++ b/compat/rpmatch_compat.h
-@@ -0,0 +1,6 @@
-+// SPDX-License-Identifier: APSL-2.0
-+// utimensat written by Randy Eckenrode © 2024
-+
-+#pragma once
-+
-+extern int rpmatch(const char *response);
-diff --git a/compat/time_compat.c b/compat/time_compat.c
-new file mode 100644
-index 0000000..becf778
--- /dev/null
-+++ b/compat/time_compat.c
-@@ -0,0 +1,38 @@
-+// SPDX-License-Identifier: APSL-2.0
-+// utimensat written by Randy Eckenrode © 2024
-+
-+#include "time_compat.h"
-+
-+#define futimens gzip_futimens
-+#include "compat/futimens.c"
-+#undef futimens
-+
-+#include <sys/fcntl.h>
-+#include <unistd.h>
-+
-+#if __MAC_OS_X_VERSION_MIN_REQUIRED < 101300
-+extern int utimensat(int dirfd, const char* pathname, const struct timespec times[_Nullable 2], int flags);
-+extern int futimens(int fd, const struct timespec times[_Nullable 2]);
-+#endif
-+
-+int compat_utimensat(int dirfd, const char* pathname, const struct timespec times[_Nullable 2], int flags) {
-+	if (__builtin_available(macOS 10.13, *)) {
-+		return utimensat(dirfd, pathname, times, flags);
-+	} else {
-+		int fd = openat(dirfd, pathname, flags);
-+		if (fd == -1) { return -1; }
-+		
-+		int retval = compat_futimens(fd, times);
-+		if (close(fd) == -1) { return -1; }
-+		
-+		return retval;
-+	}
-+}
-+
-+int compat_futimens(int fd, const struct timespec times[_Nullable 2]) {
-+	if (__builtin_available(macOS 10.13, *)) {
-+		return futimens(fd, times);
-+	} else {
-+		return gzip_futimens(fd, times);
-+	}
-+}
-diff --git a/compat/time_compat.h b/compat/time_compat.h
-new file mode 100644
-index 0000000..f07a7ed
--- /dev/null
-+++ b/compat/time_compat.h
-@@ -0,0 +1,16 @@
-+// SPDX-License-Identifier: APSL-2.0
-+// utimensat written by Randy Eckenrode © 2024
-+
-+#pragma once
-+
-+#include <time.h>
-+
-+// https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/stat.h#L578-L579
-+#define UTIME_NOW  -1
-+#define UTIME_OMIT -2
-+
-+#define utimensat compat_utimensat
-+#define futimens compat_futimens
-+
-+extern int compat_utimensat(int dirfd, const char* pathname, const struct timespec times[_Nullable 2], int flags);
-+extern int compat_futimens(int fd, const struct timespec times[_Nullable 2]);
-- 
-2.46.0
-
--- a/pkgs/os-specific/darwin/apple-source-releases/network_cmds/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/network_cmds/package.nix
@ -1,6 +1,6 @@
 {
  lib,
-  apple-sdk_11,
+  apple-sdk,
  developer_cmds,
  fetchurl,
  libpcap,
@ -67,7 +67,7 @@ let
    };
  };

-  xnu = apple-sdk_11.sourceRelease "xnu";
+  xnu = apple-sdk.sourceRelease "xnu";

  privateHeaders = stdenvNoCC.mkDerivation {
    name = "network_cmds-deps-private-headers";
@ -449,7 +449,6 @@ mkAppleDerivation {
  ];

  buildInputs = [
-    apple-sdk_11
    libpcap
    libresolv
    openssl
--- a/pkgs/os-specific/darwin/apple-source-releases/patch_cmds/meson.build.in
+++ b/pkgs/os-specific/darwin/apple-source-releases/patch_cmds/meson.build.in
@ -8,7 +8,6 @@ project('patch_cmds', 'c', version : '@version@')
 # Dependencies
 cc = meson.get_compiler('c')

-libbsd = dependency('libbsd-overlay', required : false)
 libutil = cc.find_library('util')


@ -30,7 +29,6 @@ install_man('cmp/cmp.1')

 executable(
    'diff',
-    dependencies : [ libbsd ],
    include_directories : 'diff',
    install : true,
    sources : [
@ -79,7 +77,6 @@ install_man('diffstat/diffstat.1')

 executable(
    'patch',
-    dependencies : [ libbsd ],
    include_directories : 'patch',
    install : true,
    sources : [
@ -96,7 +93,6 @@ install_man('patch/patch.1')

 executable(
    'sdiff',
-    dependencies : [ libbsd ],
    include_directories : 'sdiff',
    install : true,
    sources : [
--- a/pkgs/os-specific/darwin/apple-source-releases/patch_cmds/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/patch_cmds/package.nix
@ -1,7 +1,6 @@
 {
  lib,
  apple-sdk,
-  libbsd,
  libutil,
  mkAppleDerivation,
  pkg-config,
@ -19,10 +18,7 @@ mkAppleDerivation {

  nativeBuildInputs = [ pkg-config ];

-  buildInputs =
-    [ libutil ]
-    # diff, patch, and sdiff need `strtonum`, which requires the 11.0 SDK.
-    ++ lib.optionals (lib.versionOlder (lib.getVersion apple-sdk) "11.0") [ libbsd ];
+  buildInputs = [ libutil ];

  meta = {
    description = "BSD patch commands for Darwin";
--- a/pkgs/os-specific/darwin/apple-source-releases/removefile/meson.build.in
+++ b/pkgs/os-specific/darwin/apple-source-releases/removefile/meson.build.in
@ -14,15 +14,6 @@ library(
    'removefile',
    c_args : [
        '-D__DARWIN_NOW_CANCELABLE=1',
-        # Define these flags for the 10.12 SDK assuming that users on older systems can’t encounter dataless files.
-        # https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/stat.h#L520
-        '-DSF_DATALESS=0x40000000',
-        # https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/resource.h#L598
-        '-DIOPOL_TYPE_VFS_MATERIALIZE_DATALESS_FILES=3',
-        # https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/resource.h#L640
-        '-DIOPOL_MATERIALIZE_DATALESS_FILES_OFF=1',
-        # https://github.com/apple-oss-distributions/xnu/blob/94d3b452840153a99b38a3a9659680b2a006908e/bsd/sys/attr.h#L562
-        # '-DATTR_CMNEXT_LINKID=0x00000010',
    ],
    install : true,
    sources : [
--- a/pkgs/os-specific/darwin/apple-source-releases/removefile/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/removefile/package.nix
@ -1,15 +1,11 @@
 {
  apple-sdk,
-  apple-sdk_10_13,
-  apple-sdk_11,
  mkAppleDerivation,
  stdenvNoCC,
 }:

 let
-  # The 10.12 SDK doesn’t have the files needed in the same places or possibly at all.
-  # Just use the 11.x SDK to make things easier.
-  xnu = apple-sdk_11.sourceRelease "xnu";
+  xnu = apple-sdk.sourceRelease "xnu";

  privateHeaders = stdenvNoCC.mkDerivation {
    name = "removefile-deps-private-headers";
--- a/pkgs/os-specific/darwin/apple-source-releases/shell_cmds/meson.build.in
+++ b/pkgs/os-specific/darwin/apple-source-releases/shell_cmds/meson.build.in
@ -15,7 +15,6 @@ host_cxx = meson.get_compiler('cpp')


 # pam = cc.find_library('pam')
-libbsd = dependency('libbsd-overlay', required : false)
 libedit = dependency('libedit')
 libresolv = host_cc.find_library('resolv')
 libsbuf = host_cc.find_library('sbuf')
@ -259,7 +258,6 @@ endforeach

 executable(
    'lockf',
-    dependencies : [ libbsd ],
    install : true,
    sources : [ 'lockf/lockf.c' ],
 )
@ -415,7 +413,6 @@ install_man('who/who.1')

 executable(
    'xargs',
-    dependencies : [ libbsd ],
    include_directories : 'xargs',
    install : true,
    sources : [
--- a/pkgs/os-specific/darwin/apple-source-releases/shell_cmds/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/shell_cmds/package.nix
@ -4,7 +4,6 @@
  bison,
  clang,
  fetchurl,
-  libbsd,
  libedit,
  libresolv,
  libsbuf,
@ -17,15 +16,6 @@
 let
  # nohup requires vproc_priv.h from launchd
  launchd = apple-sdk.sourceRelease "launchd";
-
-  oldTime_c = fetchurl {
-    url = "https://github.com/apple-oss-distributions/shell_cmds/raw/shell_cmds-207.11.1/time/time.c";
-    hash = "sha256-f7aRwIaKq6r37jpw0V+1Z/sZs5Rm7vy2S774HNBnwmY=";
-  };
-  oldTime_1 = fetchurl {
-    url = "https://github.com/apple-oss-distributions/shell_cmds/raw/shell_cmds-207.11.1/time/time.1";
-    hash = "sha256-ZIbNJPHLQVGq2tdUB6j0DEp9Hie+XUZkfuQm676Vpwc=";
-  };
 in
 mkAppleDerivation {
  releaseName = "shell_cmds";
@ -37,31 +27,18 @@ mkAppleDerivation {

  xcodeHash = "sha256-26N7AZV/G+ryc2Nu1v91rEdb1a6jDpnj6t5rzEG2YA4=";

-  postPatch =
-    ''
-      # Fix `mktemp` templates
-      substituteInPlace sh/mkbuiltins \
-        --replace-fail '-t ka' '-t ka.XXXXXX'
-      substituteInPlace sh/mktokens \
-        --replace-fail '-t ka' '-t ka.XXXXXX'
+  postPatch = ''
+    # Fix `mktemp` templates
+    substituteInPlace sh/mkbuiltins \
+      --replace-fail '-t ka' '-t ka.XXXXXX'
+    substituteInPlace sh/mktokens \
+      --replace-fail '-t ka' '-t ka.XXXXXX'

-      # Update `/etc/locate.rc` paths to point to the store.
-      for path in locate/locate/locate.updatedb.8 locate/locate/locate.rc locate/locate/updatedb.sh; do
-        substituteInPlace $path --replace-fail '/etc/locate.rc' "$out/etc/locate.rc"
-      done
-    ''
-    # Use an older version of `time.c` that’s compatible with the 10.12 SDK.
-    + lib.optionalString (lib.versionOlder (lib.getVersion apple-sdk) "10.13") ''
-      cp '${oldTime_c}' time/time.c
-      cp '${oldTime_1}' time/time.1
-    ''
-    + lib.optionalString (lib.versionOlder (lib.getVersion apple-sdk) "11.0") ''
-      # `rpmatch` was added in 11.0, so revert it to a simpler check on older SDKs.
-      substituteInPlace find/misc.c \
-        --replace-fail 'return (rpmatch(resp) == 1);' "return (resp[0] == 'y');"
-      # Add missing header for older SDKs.
-      sed -e '1i #include <sys/time.h>' -i w/proc_compare.c
-    '';
+    # Update `/etc/locate.rc` paths to point to the store.
+    for path in locate/locate/locate.updatedb.8 locate/locate/locate.rc locate/locate/updatedb.sh; do
+      substituteInPlace $path --replace-fail '/etc/locate.rc' "$out/etc/locate.rc"
+    done
+  '';

  env.NIX_CFLAGS_COMPILE = "-I${launchd}/liblaunch";

@ -72,16 +49,13 @@ mkAppleDerivation {
    pkg-config
  ];

-  buildInputs =
-    [
-      libedit
-      libresolv
-      libsbuf
-      libutil
-      libxo
-    ]
-    # xargs needs `strtonum`, which was added in 11.0.
-    ++ lib.optionals (lib.versionOlder (lib.getVersion apple-sdk) "11.0") [ libbsd ];
+  buildInputs = [
+    libedit
+    libresolv
+    libsbuf
+    libutil
+    libxo
+  ];

  postInstall = ''
    # Patch the shebangs to use `sh` from shell_cmds.
--- a/pkgs/os-specific/darwin/apple-source-releases/system_cmds/meson.build.in
+++ b/pkgs/os-specific/darwin/apple-source-releases/system_cmds/meson.build.in
@ -76,17 +76,14 @@ install_man('accton/accton.8')

 executable(
    'arch',
-    build_by_default : sdk_version.version_compare('>=11'),
    dependencies : [ core_foundation ],
-    install : sdk_version.version_compare('>=11'),
+    install : true,
    sources : 'arch/arch.c',
 )
-if sdk_version.version_compare('>=11')
-    install_man(
-        'arch/arch.1',
-        'arch/machine.1',
-    )
-endif
+install_man(
+    'arch/arch.1',
+    'arch/machine.1',
+)

 executable(
    'at',
@ -192,8 +189,8 @@ install_man('fs_usage/fs_usage.1')
 executable(
    'gcore',
    # Requires XPC private APIs
-    build_by_default : false and sdk_version.version_compare('>=11'),
-    install : false and sdk_version.version_compare('>=11'),
+    build_by_default : false,
+    install : false,
    sources : [
        'gcore/convert.c',
        'gcore/corefile.c',
@ -359,13 +356,10 @@ install_man('mkfile/mkfile.8')

 executable(
    'mslutil',
-    build_by_default : sdk_version.version_compare('>=10.13'),
-    install : sdk_version.version_compare('>=10.13'),
+    install : true,
    sources : 'mslutil/mslutil.c',
 )
-if sdk_version.version_compare('>=10.13')
-    install_man('mslutil/mslutil.1')
-endif
+install_man('mslutil/mslutil.1')

 executable(
    'newgrp',
@ -495,8 +489,8 @@ executable('shutdown',
 executable(
    'stackshot',
    # Requires private entitlements
-    build_by_default : false and sdk_version.version_compare('>=10.13'),
-    install : false and sdk_version.version_compare('>=10.13'),
+    build_by_default : false,
+    install : false,
    sources : 'stackshot/stackshot.c',
 )
 # No man pages for `stackshot`.
@ -520,13 +514,10 @@ install_man(

 executable(
    'taskpolicy',
-    build_by_default : sdk_version.version_compare('>=11'),
-    install : sdk_version.version_compare('>=11'),
+    install : true,
    sources : 'taskpolicy/taskpolicy.c',
 )
-if sdk_version.version_compare('>=11')
-    install_man('taskpolicy/taskpolicy.8')
-endif
+install_man('taskpolicy/taskpolicy.8')

 executable(
    'vifs',
@ -546,13 +537,10 @@ executable(
 install_man('vipw/vipw.8')

 executable('vm_purgeable_stat',
-    build_by_default : sdk_version.version_compare('>=11'),
-    install : sdk_version.version_compare('>=11'),
+    install : true,
    sources : 'vm_purgeable_stat/vm_purgeable_stat.c',
 )
-if sdk_version.version_compare('>=11')
-    install_man('vm_purgeable_stat/vm_purgeable_stat.1')
-endif
+install_man('vm_purgeable_stat/vm_purgeable_stat.1')

 executable(
    'vm_stat',
@ -593,18 +581,15 @@ install_man('zic/zic.8')

 executable(
    'zlog',
-    build_by_default : sdk_version.version_compare('>=11'),
    c_args : '-DKERN_NOT_FOUND=56',
    dependencies : [ core_foundation, core_symbolication ],
-    install : sdk_version.version_compare('>=11'),
+    install : true,
    sources : [
        'zlog/SymbolicationHelper.c',
        'zlog/zlog.c',
    ],
 )
-if sdk_version.version_compare('>=11')
-    install_man('zlog/zlog.1')
-endif
+install_man('zlog/zlog.1')

 executable(
    'zprint',
--- a/pkgs/os-specific/darwin/apple-source-releases/system_cmds/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/system_cmds/package.nix
@ -51,6 +51,9 @@ let
      chmod -R u+w "$out/include/dispatch"
      find "$out/include/dispatch" -name '*.h' -exec sed -i {} -e 's/, bridgeos([^)]*)//g' \;

+      install -D -t "$out/include/System/i386" \
+        '${xnu}/osfmk/i386/cpu_capabilities.h'
+
      install -D -t "$out/include/kern" \
        '${xnu}/osfmk/kern/debug.h'

@ -81,11 +84,6 @@ mkAppleDerivation {

  xcodeHash = "sha256-gdtn3zNIneZKy6+X0mQ51CFVLNM6JQYLbd/lotG5/Tw=";

-  patches = [
-    # Use availability checks to fall back to older APIs on older macOS versions.
-    ./patches/0001-Add-availability-checks-to-vm_purgeable_stat.patch
-  ];
-
  postPatch = ''
    # Replace hard-coded, impure system paths with the output path in the store.
    sed -e "s|PATH=[^;]*|PATH='$out/bin'|" -i "pagesize/pagesize.sh"
--- a/pkgs/os-specific/darwin/apple-source-releases/system_cmds/patches/0001-Add-availability-checks-to-vm_purgeable_stat.patch
+++ b/pkgs/os-specific/darwin/apple-source-releases/system_cmds/patches/0001-Add-availability-checks-to-vm_purgeable_stat.patch
@ -1,42 +0,0 @@
-From 18a676bc44a8bc24374ab35a258a18049b56b6d4 Mon Sep 17 00:00:00 2001
-From: Randy Eckenrode <randy@largeandhighquality.com>
-Date: Mon, 2 Sep 2024 21:46:34 -0400
-Subject: [PATCH] Add availability checks to vm_purgeable_stat
-
---
- vm_purgeable_stat/vm_purgeable_stat.c | 12 ++++++++++--
- 1 file changed, 10 insertions(+), 2 deletions(-)
-
-diff --git a/vm_purgeable_stat/vm_purgeable_stat.c b/vm_purgeable_stat/vm_purgeable_stat.c
-index 330704d..9d9041b 100644
--- a/vm_purgeable_stat/vm_purgeable_stat.c
-+++ b/vm_purgeable_stat/vm_purgeable_stat.c
-@@ -88,7 +88,11 @@ int get_task_from_pid(int pid, task_t *task)
- 		fprintf(stderr, "%s\n", PRIV_ERR_MSG);
- 		return -1;
- 	}
-	kr = task_inspect_for_pid(mach_task_self(), pid, task);
-+	if (__builtin_available(macOS 11.3, *)) {
-+		kr = task_inspect_for_pid(mach_task_self(), pid, task);
-+	} else {
-+		kr = task_for_pid(mach_task_self(), pid, task);
-+	}
- 	if (kr != KERN_SUCCESS) {
- 		fprintf(stderr, "Failed to get task port for pid: %d\n", pid);
- 		return -1;
-@@ -128,7 +132,11 @@ int get_system_tasks(task_array_t *tasks, mach_msg_type_number_t *count)
- 	vm_deallocate(mach_task_self(), (vm_address_t)psets, (vm_size_t)psetCount * sizeof(mach_port_t));
- 
- 	/* convert the processor-set-priv to a list of tasks for the processor set */
-	ret = processor_set_tasks_with_flavor(pset_priv, TASK_FLAVOR_INSPECT, tasks, count);
-+	if (__builtin_available(macOS 11.0, *)) {
-+		ret = processor_set_tasks_with_flavor(pset_priv, TASK_FLAVOR_INSPECT, tasks, count);
-+	} else {
-+		ret = processor_set_tasks(pset_priv, tasks, count);
-+	}
- 	if (ret != KERN_SUCCESS) {
- 		fprintf(stderr, "processor_set_tasks_with_flavor() failed: %s\n", mach_error_string(ret));
- 		return -1;
-- 
-2.44.1
-
--- a/pkgs/os-specific/darwin/apple-source-releases/text_cmds/meson.build.in
+++ b/pkgs/os-specific/darwin/apple-source-releases/text_cmds/meson.build.in
@ -18,7 +18,6 @@ fs = import('fs')
 cc = meson.get_compiler('c')

 bzip2 = dependency('bzip2')
-libbsd = dependency('libbsd-overlay', required : false)
 libmd = dependency('libmd')
 libresolv = cc.find_library('resolv')
 libutil = cc.find_library('util')
@ -81,7 +80,6 @@ install_man('cat/cat.1')

 executable(
    'col',
-    dependencies : [ libbsd ],
    install : true,
    sources : [
        'col/col.c',
@ -316,7 +314,7 @@ executable(

 executable(
    'split',
-    dependencies : [ libbsd, libutil ],
+    dependencies : [ libutil ],
    install : true,
    sources : [ 'split/split.c' ],
 )
@ -366,7 +364,6 @@ executable(

 executable(
    'uniq',
-    dependencies : [ libbsd ],
    install : true,
    sources : [ 'uniq/uniq.c' ],
 )
--- a/pkgs/os-specific/darwin/apple-source-releases/text_cmds/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/text_cmds/package.nix
@ -1,10 +1,8 @@
 {
  lib,
  apple-sdk,
-  apple-sdk_11,
  apple-sdk_13,
  bzip2,
-  libbsd,
  libmd,
  libresolv,
  libutil,
@ -22,11 +20,9 @@ let
  Libc = apple-sdk.sourceRelease "Libc";
  Libc_13 = apple-sdk_13.sourceRelease "Libc";

-  # The 10.12 SDK doesn’t have the files needed in the same places or possibly at all.
-  # Just use the 11.0 SDK to make things easier.
-  CommonCrypto = apple-sdk_11.sourceRelease "CommonCrypto";
-  libplatform = apple-sdk_11.sourceRelease "libplatform";
-  xnu = apple-sdk_11.sourceRelease "xnu";
+  CommonCrypto = apple-sdk.sourceRelease "CommonCrypto";
+  libplatform = apple-sdk.sourceRelease "libplatform";
+  xnu = apple-sdk.sourceRelease "xnu";

  privateHeaders = stdenvNoCC.mkDerivation {
    name = "text_cmds-deps-private-headers";
@ -40,12 +36,6 @@ let
        '${xnu}/libkern/os/base_private.h'
      install -D -t "$out/include/CommonCrypto" \
        '${CommonCrypto}/include/Private/CommonDigestSPI.h'
-
-      # Prevent an error when using the old availability headers from the 10.12 SDK.
-      substituteInPlace "$out/include/CommonCrypto/CommonDigestSPI.h" \
-        --replace-fail 'API_DEPRECATED(CC_DIGEST_DEPRECATION_WARNING, macos(10.4, 10.13), ios(5.0, 11.0))' "" \
-        --replace-fail 'API_DEPRECATED(CC_DIGEST_DEPRECATION_WARNING, macos(10.4, 10.15), ios(5.0, 13.0))' ""
-      touch "$out/include/CrashReporterClient.h" # Needed by older SDK `os/assumes.h`
    '';
  };
 in
@ -59,10 +49,6 @@ mkAppleDerivation {

  xcodeHash = "sha256-dZ+yJyfflhmUyx3gitRXC115QxS87SGC4/HjMa199Ts=";

-  patches = lib.optionals (lib.versionOlder (lib.getVersion apple-sdk) "11.0") [
-    ./patches/0001-Use-availability-check-for-__collate_lookup_l.patch
-  ];
-
  postPatch =
    ''
      # Improve compatiblity with libmd in nixpkgs.
@ -102,7 +88,7 @@ mkAppleDerivation {
    ncurses
    xz
    zlib
-  ] ++ lib.optionals (lib.versionOlder (lib.getVersion apple-sdk) "11.0") [ libbsd ];
+  ];

  postInstall = ''
    # Patch the shebangs to use `sh` from shell_cmds.
--- a/pkgs/os-specific/darwin/apple-source-releases/text_cmds/patches/0001-Use-availability-check-for-__collate_lookup_l.patch
+++ b/pkgs/os-specific/darwin/apple-source-releases/text_cmds/patches/0001-Use-availability-check-for-__collate_lookup_l.patch
@ -1,54 +0,0 @@
-From 11ad41c2d3af88b5cf85d4bc2f5388b65e5ff347 Mon Sep 17 00:00:00 2001
-From: Randy Eckenrode <randy@largeandhighquality.com>
-Date: Mon, 16 Sep 2024 12:42:59 -0400
-Subject: [PATCH] Use availability check for __collate_lookup_l
-
---
- tr/str.c | 17 +++++++++++++++--
- 1 file changed, 15 insertions(+), 2 deletions(-)
-
-diff --git a/tr/str.c b/tr/str.c
-index 6a79df2..8226abe 100644
--- a/tr/str.c
-+++ b/tr/str.c
-@@ -69,6 +69,7 @@ static void	genseq(STR *);
-  * Using libc internal function __collate_lookup_l for character
-  * equivalence
-  */
-+void __collate_lookup(const __darwin_wchar_t *, int *, int *, int *);
- void __collate_lookup_l(const __darwin_wchar_t *, int *, int *, int *,
- locale_t);
- /*
-@@ -255,7 +256,13 @@ genequiv(STR *s)
-      */
-     int tprim, tsec;
-     int len;
-    __collate_lookup_l(s->equiv, &len, &tprim, &tsec, LC_GLOBAL_LOCALE);
-+    if (__builtin_available(macOS 11.0, *)) {
-+        __collate_lookup_l(s->equiv, &len, &tprim, &tsec, LC_GLOBAL_LOCALE);
-+    } else {
-+        locale_t old = uselocale(LC_GLOBAL_LOCALE);
-+        __collate_lookup(s->equiv, &len, &tprim, &tsec);
-+        uselocale(old);
-+    }
-     
-     if (tprim != -1) {
-         for (p = 1, i = 1; i < NCHARS_SB; i++) {
-@@ -270,7 +277,13 @@ genequiv(STR *s)
-                  * perform lookup of primary weight and fill cache
-                  */
-                 int csec;
-                __collate_lookup_l((__darwin_wchar_t *)&i, &len, &cprim, &csec, LC_GLOBAL_LOCALE);
-+                if (__builtin_available(macOS 11.0, *)) {
-+                    __collate_lookup_l((__darwin_wchar_t *)&i, &len, &cprim, &csec, LC_GLOBAL_LOCALE);
-+                } else {
-+                    locale_t old = uselocale(LC_GLOBAL_LOCALE);
-+                    __collate_lookup((__darwin_wchar_t *)&i, &len, &cprim, &csec);
-+                    uselocale(old);
-+                }
-                 collation_weight_cache[i] = cprim;
-             }
-             
-- 
-2.46.0
-
--- a/pkgs/os-specific/darwin/apple-source-releases/top/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/top/package.nix
@ -1,5 +1,5 @@
 {
-  apple-sdk_11,
+  apple-sdk,
  fetchpatch2,
  libutil,
  mkAppleDerivation,
@ -8,7 +8,7 @@
 }:

 let
-  xnu = apple-sdk_11.sourceRelease "xnu";
+  xnu = apple-sdk.sourceRelease "xnu";
 in
 mkAppleDerivation {
  releaseName = "top";
@ -33,7 +33,6 @@ mkAppleDerivation {
  '';

  buildInputs = [
-    apple-sdk_11
    libutil
    ncurses
  ];
--- a/pkgs/stdenv/darwin/default.nix
+++ b/pkgs/stdenv/darwin/default.nix
@ -28,14 +28,7 @@ assert crossSystem == localSystem;
 let
  inherit (localSystem) system;

-  sdkMajorVersion =
-    let
-      inherit (localSystem) darwinSdkVersion;
-    in
-    if lib.versionOlder darwinSdkVersion "11" then
-      lib.versions.majorMinor darwinSdkVersion
-    else
-      lib.versions.major darwinSdkVersion;
+  sdkMajorVersion = lib.versions.major localSystem.darwinSdkVersion;

  commonImpureHostDeps = [
    "/bin/sh"
@ -676,8 +669,6 @@ assert bootstrapTools.passthru.isFromBootstrapFiles or false; # sanity check
          self = self.python3-bootstrap;
          pythonAttr = "python3-bootstrap";
          enableLTO = false;
-          # Workaround for ld64 crashes on x86_64-darwin. Remove after 11.0 is made the default.
-          inherit (prevStage) apple-sdk_11;
        };

        scons = super.scons.override { python3Packages = self.python3.pkgs; };
@ -690,12 +681,6 @@ assert bootstrapTools.passthru.isFromBootstrapFiles or false; # sanity check

            postLinkSignHook = prevStage.darwin.postLinkSignHook.override { inherit (selfDarwin) sigtool; };

-            adv_cmds = superDarwin.adv_cmds.override {
-              # Break an infinite recursion between CMake and libtapi. CMake requires adv_cmds.ps, and adv_cmds
-              # requires a newer SDK that requires libtapi to build, which requires CMake.
-              inherit (prevStage) apple-sdk_11;
-            };
-
            # Rewrap binutils with the real libSystem
            binutils = superDarwin.binutils.override {
              inherit (self) coreutils;
--- a/pkgs/stdenv/darwin/override-sdk.nix
+++ b/pkgs/stdenv/darwin/override-sdk.nix
@ -9,33 +9,23 @@

 stdenv: sdkVersion:
 let
-  newVersion = {
-    inherit (stdenv.hostPlatform) darwinMinVersion darwinSdkVersion;
-  } // (if lib.isAttrs sdkVersion then sdkVersion else { darwinSdkVersion = sdkVersion; });
-
-  inherit (newVersion) darwinMinVersion darwinSdkVersion;
-
-  sdkMapping = {
-    "11.0" = pkgsHostTarget.apple-sdk_11;
-    "12.3" = pkgsHostTarget.apple-sdk_12;
-  };
-
-  minVersionHook = pkgsHostTarget.darwinMinVersionHook darwinMinVersion;
-
-  resolvedSdk =
-    sdkMapping.${darwinSdkVersion} or (lib.throw ''
-      `overrideSDK` and `darwin.apple_sdk_11_0.callPackage` are deprecated.
-      Only the 11.0 and 12.3 SDKs are supported using them. Please use
-      the versioned `apple-sdk` variants to use other SDK versions.
-
-      See the stdenv documentation for how to use `apple-sdk`.
-    '');
+  darwinSdkVersion =
+    if lib.isAttrs sdkVersion then sdkVersion.darwinSdkVersion or "11.0" else sdkVersion;
 in
+assert lib.assertMsg (darwinSdkVersion == "11.0" || darwinSdkVersion == "12.3") ''
+  `overrideSDK` and `darwin.apple_sdk_11_0.callPackage` are deprecated.
+  Only the 11.0 and 12.3 SDKs are supported using them. Please use
+  the versioned `apple-sdk` variants to use other SDK versions.
+
+  See the stdenv documentation for how to use `apple-sdk`.
+'';
 stdenv.override (old: {
  mkDerivationFromStdenv = extendMkDerivationArgs old (args: {
    buildInputs =
      args.buildInputs or [ ]
-      ++ lib.optional (stdenv.hostPlatform.darwinMinVersion != darwinMinVersion) minVersionHook
-      ++ lib.optional (stdenv.hostPlatform.darwinSdkVersion != darwinSdkVersion) resolvedSdk;
+      ++ lib.optional (darwinSdkVersion == "12.3") pkgsHostTarget.apple-sdk_12
+      ++ lib.optional (sdkVersion ? darwinMinVersion) (
+        pkgsHostTarget.darwinMinVersionHook sdkVersion.darwinMinVersion
+      );
  });
 })
--- a/pkgs/tools/misc/timidity/default.nix
+++ b/pkgs/tools/misc/timidity/default.nix
@ -3,7 +3,6 @@
 , fetchurl
 , nixosTests
 , pkg-config
-, memstreamHook
 , CoreAudio
 , libobjc
 , libjack2
@ -31,9 +30,7 @@ stdenv.mkDerivation rec {
    ./configure-compat.patch
  ];

-  nativeBuildInputs = [ pkg-config ]
-    ++ lib.optionals (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) [ memstreamHook ];
-
+  nativeBuildInputs = [ pkg-config ];
  buildInputs = [
    libjack2
    ncurses
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@ -9,7 +9,6 @@
 , fetchpatch
 , fetchpatch2
 , runCommand
-, overrideSDK
 , buildPackages
 , Security

@ -210,22 +209,13 @@ in lib.makeExtensible (self: ({
    self_attribute_name = "nix_2_23";
  };

-  nix_2_24 = (common {
+  nix_2_24 = common {
    version = "2.24.10";
    hash = "sha256-XdeVy1/d6DEIYb3nOA6JIYF4fwMKNxtwJMgT3pHi+ko=";
    self_attribute_name = "nix_2_24";
-  }).override (lib.optionalAttrs (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) {
-    # Fix the following error with the default x86_64-darwin SDK:
-    #
-    #     error: aligned allocation function of type 'void *(std::size_t, std::align_val_t)' is only available on macOS 10.13 or newer
-    #
-    # Despite the use of the 10.13 deployment target here, the aligned
-    # allocation function Clang uses with this setting actually works
-    # all the way back to 10.6.
-    stdenv = overrideSDK stdenv { darwinMinVersion = "10.13"; };
-  });
+  };

-  git = (common rec {
+  git = common rec {
    version = "2.25.0";
    suffix = "pre20241101_${lib.substring 0 8 src.rev}";
    src = fetchFromGitHub {
@ -235,16 +225,7 @@ in lib.makeExtensible (self: ({
      hash = "sha256-E1Sp0JHtbD1CaGO3UbBH6QajCtOGqcrVfPSKL0n63yo=";
    };
    self_attribute_name = "git";
-  }).override (lib.optionalAttrs (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) {
-    # Fix the following error with the default x86_64-darwin SDK:
-    #
-    #     error: aligned allocation function of type 'void *(std::size_t, std::align_val_t)' is only available on macOS 10.13 or newer
-    #
-    # Despite the use of the 10.13 deployment target here, the aligned
-    # allocation function Clang uses with this setting actually works
-    # all the way back to 10.6.
-    stdenv = overrideSDK stdenv { darwinMinVersion = "10.13"; };
-  });
+  };

  latest = self.nix_2_24;

--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@ -110,6 +110,10 @@ mapAliases {
  ao = libfive; # Added 2024-10-11
  apacheKafka_3_5 = throw "apacheKafka_2_8 through _3_5 have been removed from nixpkgs as outdated"; # Added 2024-06-13
  antimicroX = throw "'antimicroX' has been renamed to/replaced by 'antimicrox'"; # Converted to throw 2024-10-17
+  apple-sdk_10_12 = throw "apple-sdk_10_12 was removed as Nixpkgs no longer supports macOS 10.12; see the 25.05 release notes"; # Added 2024-10-27
+  apple-sdk_10_13 = throw "apple-sdk_10_13 was removed as Nixpkgs no longer supports macOS 10.13; see the 25.05 release notes"; # Added 2024-10-27
+  apple-sdk_10_14 = throw "apple-sdk_10_14 was removed as Nixpkgs no longer supprots macOS 10.14; see the 25.05 release notes"; # Added 2024-10-27
+  apple-sdk_10_15 = throw "apple-sdk_10_15 was removed as Nixpkgs no longer supports macOS 10.15; see the 25.05 release notes"; # Added 2024-10-27
  appthreat-depscan = dep-scan; # Added 2024-04-10
  arcanist = throw "arcanist was removed as phabricator is not supported and does not accept fixes"; # Added 2024-06-07
  aria = aria2; # Added 2024-03-26
@ -761,6 +765,10 @@ mapAliases {
  mcomix3 = mcomix; # Added 2022-06-05
  mdt = md-tui; # Added 2024-09-03
  meme = throw "'meme' has been renamed to/replaced by 'meme-image-generator'"; # Converted to throw 2024-10-17
+  memorymapping = throw "memorymapping has been removed, as it was only useful on old macOS versions that are no longer supported"; # Added 2024-10-05
+  memorymappingHook = throw "memorymapping has been removed, as it was only useful on old macOS versions that are no longer supported"; # Added 2024-10-05
+  memstream = throw "memstream has been removed, as it was only useful on old macOS versions that are no longer supported"; # Added 2024-10-05
+  memstreamHook = throw "memstream has been removed, as it was only useful on old macOS versions that are no longer supported"; # Added 2024-10-05
  mhwaveedit = throw "'mkwaveedit' has been removed due to lack of maintenance upstream. Consider using 'audacity' or 'tenacity' instead";
  microcodeAmd = microcode-amd; # Added 2024-09-08
  microcodeIntel = microcode-intel; # Added 2024-09-08
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@ -10354,18 +10354,6 @@ with pkgs;

  mediastreamer-openh264 = callPackage ../development/libraries/mediastreamer/msopenh264.nix { };

-  memorymapping = callPackage ../development/libraries/memorymapping { };
-  memorymappingHook = makeSetupHook {
-    name = "memorymapping-hook";
-    propagatedBuildInputs = [ memorymapping ];
-  } ../development/libraries/memorymapping/setup-hook.sh;
-
-  memstream = callPackage ../development/libraries/memstream { };
-  memstreamHook = makeSetupHook {
-    name = "memstream-hook";
-    propagatedBuildInputs = [ memstream ];
-  } ../development/libraries/memstream/setup-hook.sh;
-
  mergerfs = callPackage ../tools/filesystems/mergerfs { };

  mergerfs-tools = callPackage ../tools/filesystems/mergerfs/tools.nix { };
@ -11342,10 +11330,6 @@ with pkgs;

  ### DEVELOPMENT / LIBRARIES / DARWIN SDKS

-  apple-sdk_10_12 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "10.12"; };
-  apple-sdk_10_13 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "10.13"; };
-  apple-sdk_10_14 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "10.14"; };
-  apple-sdk_10_15 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "10.15"; };
  apple-sdk_11 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "11"; };
  apple-sdk_12 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "12"; };
  apple-sdk_13 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "13"; };
--- a/pkgs/top-level/darwin-aliases.nix
+++ b/pkgs/top-level/darwin-aliases.nix
@ -47,6 +47,10 @@ let
 in

 mapAliases ({
+  ### A ###
+
+  apple_sdk_10_12 = throw "darwin.apple_sdk_10_12 was removed as Nixpkgs no longer supports macOS 10.12; see the 25.05 release notes"; # Added 2024-10-27
+
  ### B ###

  builder = throw "'darwin.builder' has been changed and renamed to 'darwin.linux-builder'. The default ssh port is now 31022. Please update your configuration or override the port back to 22. See https://nixos.org/manual/nixpkgs/unstable/#sec-darwin-builder"; # added 2023-07-06
--- a/pkgs/top-level/darwin-packages.nix
+++ b/pkgs/top-level/darwin-packages.nix
@ -57,24 +57,16 @@ makeScopeWithSplicing' {
  # Must use pkgs.callPackage to avoid infinite recursion.
  impure-cmds = pkgs.callPackage ../os-specific/darwin/impure-cmds { };

-  # macOS 10.12 SDK
-  apple_sdk_10_12 = pkgs.callPackage ../os-specific/darwin/apple-sdk { };
-
  # macOS 11.0 SDK
  apple_sdk_11_0 = pkgs.callPackage ../os-specific/darwin/apple-sdk-11.0 { };

  # macOS 12.3 SDK
  apple_sdk_12_3 = pkgs.callPackage ../os-specific/darwin/apple-sdk-12.3 { };

-  # Pick an SDK
-  apple_sdk = {
-    "10.12" = apple_sdk_10_12;
-    "11.0" = apple_sdk_11_0;
-  }.${stdenv.hostPlatform.darwinSdkVersion}
-  or (throw "Unsupported sdk: ${stdenv.hostPlatform.darwinSdkVersion}");
+  apple_sdk = apple_sdk_11_0;

  stubs = {
-    inherit apple_sdk apple_sdk_10_12 apple_sdk_11_0 apple_sdk_12_3;
+    inherit apple_sdk apple_sdk_11_0 apple_sdk_12_3;
    libobjc = self.objc4;
  } // lib.genAttrs [
    "CF"