nushell: use newer libproc.h

pkgs/shells/nushell/default.nix

@@ -11,10 +11,9 @@
 , python3
 , xorg
 , libiconv
+, Libsystem
 , AppKit
 , Security
-# darwin.apple_sdk.sdk
-, sdk
 , nghttp2
 , libgit2
 , withExtraFeatures ? true
@@ -44,21 +43,8 @@ rustPlatform.buildRustPackage rec {
     ++ lib.optionals stdenv.isDarwin [ rustPlatform.bindgenHook ];
 
   buildInputs = [ openssl zstd ]
-    ++ lib.optionals stdenv.isDarwin [ zlib libiconv Security ]
-    ++ lib.optionals (stdenv.isDarwin && stdenv.isx86_64) [
-    (
-      # Pull a header that contains a definition of proc_pid_rusage().
-      # (We pick just that one because using the other headers from `sdk` is not
-      # compatible with our C++ standard library. This header is already in
-      # the standard library on aarch64)
-      # See also:
-      # https://github.com/shanesveller/nixpkgs/tree/90ed23b1b23c8ee67928937bdec7ddcd1a0050f5/pkgs/development/libraries/webkitgtk/default.nix
-      # https://github.com/shanesveller/nixpkgs/blob/90ed23b1b23c8ee67928937bdec7ddcd1a0050f5/pkgs/tools/system/btop/default.nix#L32-L38
-      runCommand "${pname}_headers" { } ''
-        install -Dm444 "${lib.getDev sdk}"/include/libproc.h "$out"/include/libproc.h
-      ''
-    )
-  ] ++ lib.optionals (withExtraFeatures && stdenv.isLinux) [ xorg.libX11 ]
+    ++ lib.optionals stdenv.isDarwin [ zlib libiconv Libsystem Security ]
+    ++ lib.optionals (withExtraFeatures && stdenv.isLinux) [ xorg.libX11 ]
     ++ lib.optionals (withExtraFeatures && stdenv.isDarwin) [ AppKit nghttp2 libgit2 ];
 
   buildFeatures = lib.optional withExtraFeatures "extra";

pkgs/top-level/all-packages.nix

@@ -26228,8 +26228,8 @@ with pkgs;
   nsh = callPackage ../shells/nsh { };
 
   nushell = darwin.apple_sdk_11_0.callPackage ../shells/nushell {
+    inherit (darwin.apple_sdk_11_0) Libsystem;
     inherit (darwin.apple_sdk_11_0.frameworks) AppKit Security;
-    inherit (darwin.apple_sdk) sdk;
   };
 
   nettools = if stdenv.isLinux