From 26be9f6da2dafb79d89514c7f10d94992a49dadd Mon Sep 17 00:00:00 2001
From: Sarah Clark <seclark@nextquestion.net>
Date: Tue, 14 Oct 2025 11:10:54 -0700
Subject: [PATCH] sbcl: disable tests that fail on Darwin

---
 pkgs/development/compilers/sbcl/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/compilers/sbcl/default.nix b/pkgs/development/compilers/sbcl/default.nix
index 315016ef7aea..bc4d345f0e3f 100644
--- a/pkgs/development/compilers/sbcl/default.nix
+++ b/pkgs/development/compilers/sbcl/default.nix
@@ -147,7 +147,13 @@ stdenv.mkDerivation (self: {
       # Heisentest, sometimes fails on ofBorg, would rather just disable it than
       # have it block a release.
       "futex-wait.test.sh"
+    ]
+    ++ lib.optionals (stdenv.hostPlatform.system == "aarch64-darwin") [
+      # Fail intermittently
+      "gc.impure.lisp"
+      "threads.pure.lisp"
     ];
+
   patches =
     # Support the NIX_SBCL_DYNAMIC_SPACE_SIZE envvar. Upstream SBCL didn’t want
     # to include this (see