From 7b63df2fdeb0e14ed77b41be11cbf1e390cea15f Mon Sep 17 00:00:00 2001
From: sternenseemann <0rpkxez4ksa01gb3typccl0i@systemli.org>
Date: Sat, 21 Aug 2021 19:50:48 +0200
Subject: [PATCH] ocaml-ng.ocamlPackages_4_08.uunf: mark as broken on aarch64

Fails to build consistently on aarch64 for unknown reasons, probably a
compiler bug as OCaml 4.12 seems to work.
---
 pkgs/development/ocaml-modules/uunf/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/ocaml-modules/uunf/default.nix b/pkgs/development/ocaml-modules/uunf/default.nix
index cb95839d16c0..898bbbba91b7 100644
--- a/pkgs/development/ocaml-modules/uunf/default.nix
+++ b/pkgs/development/ocaml-modules/uunf/default.nix
@@ -56,5 +56,8 @@ stdenv.mkDerivation {
     platforms = ocaml.meta.platforms or [];
     license = licenses.bsd3;
     maintainers = [ maintainers.vbgl ];
+    # See https://github.com/dbuenzli/uunf/issues/15#issuecomment-903151264
+    broken = lib.versions.majorMinor ocaml.version == "4.08"
+      && stdenv.hostPlatform.isAarch64;
   };
 }