nixpkgs/pkgs/development/compilers/llvm/11/libunwind.nix

{ stdenv, version, fetch, cmake, fetchpatch, enableShared ? true }:

stdenv.mkDerivation rec {
  pname = "libunwind";
  inherit version;

  src = fetch pname "1cs0bygglc70aadzhnackd0mamc16y01z2yxv9jglxd0r78gk0ff";

  nativeBuildInputs = [ cmake ];

  enableParallelBuilding = true;

  cmakeFlags = stdenv.lib.optional (!enableShared) "-DLIBUNWIND_ENABLE_SHARED=OFF";
}