From 29b634dd2c7c70fb0f83537aef6c677be7060122 Mon Sep 17 00:00:00 2001
From: Randy Eckenrode <randy@largeandhighquality.com>
Date: Mon, 22 Sep 2025 18:53:09 -0400
Subject: [PATCH] darwin.copyfile: drop workaround for older Clang versions

---
 .../darwin/apple-source-releases/copyfile/package.nix    | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/pkgs/os-specific/darwin/apple-source-releases/copyfile/package.nix b/pkgs/os-specific/darwin/apple-source-releases/copyfile/package.nix
index b2c02c05e624..413e6532b3a6 100644
--- a/pkgs/os-specific/darwin/apple-source-releases/copyfile/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/copyfile/package.nix
@@ -71,15 +71,6 @@ mkAppleDerivation {
 
   xcodeHash = "sha256-SYW6pBlCQkcbkBqCq+W/mDYZZ7/co2HlPZwXzgh/LnI=";
 
-  postPatch = ''
-    # Disable experimental bounds safety stuff that’s not available in LLVM 16.
-    for header in copyfile.h xattr_flags.h; do
-      substituteInPlace "$header" \
-        --replace-fail '__ptrcheck_abi_assume_single()' "" \
-        --replace-fail '__unsafe_indexable' ""
-    done
-  '';
-
   env.NIX_CFLAGS_COMPILE = "-I${privateHeaders}/include";
 
   meta.description = "Darwin file copying library";