telegram-desktop: work around ld64 hardening issue

pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix

@@ -34,6 +34,7 @@
   libjxl,
   libicns,
   apple-sdk_15,
+  llvmPackages,
   nix-update-script,
 }:
 
@@ -67,6 +68,11 @@ stdenv.mkDerivation (finalAttrs: {
     # to build bundled libdispatch
     clang
     gobject-introspection
+  ]
+  # Work around ld64's libc++ hardening issue causing Trace/BPT trap: 5
+  # TODO: Remove once nixpkgs#536365 reaches this branch.
+  ++ lib.optionals stdenv.hostPlatform.isDarwin [
+    llvmPackages.lld
   ];
 
   buildInputs = [
@@ -102,6 +108,12 @@ stdenv.mkDerivation (finalAttrs: {
 
   dontWrapQtApps = true;
 
+  # Work around ld64's libc++ hardening issue causing Trace/BPT trap: 5
+  # TODO: Remove once nixpkgs#536365 reaches this branch.
+  env = lib.optionalAttrs stdenv.hostPlatform.isDarwin {
+    NIX_CFLAGS_LINK = "-fuse-ld=lld";
+  };
+
   cmakeFlags = [
     # We're allowed to used the API ID of the Snap package:
     (lib.cmakeFeature "TDESKTOP_API_ID" "611335")