depot/third_party/nixpkgs/pkgs/os-specific/darwin/apple-sdk-12.3/libunwind.nix

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{
stdenvNoCC,
buildPackages,
darwin-stubs,
}:
stdenvNoCC.mkDerivation {
pname = "libunwind";
inherit (darwin-stubs) version;
dontUnpack = true;
dontBuild = true;
nativeBuildInputs = [ buildPackages.darwin.checkReexportsHook ];
installPhase = ''
mkdir -p $out/include/mach-o
cp \
${darwin-stubs}/usr/include/libunwind.h \
${darwin-stubs}/usr/include/unwind.h \
$out/include
cp \
${darwin-stubs}/usr/include/mach-o/compact_unwind_encoding.h \
$out/include/mach-o
'';
}