From cf7deee3492779ec316526c6c438eb4ca1c567fc Mon Sep 17 00:00:00 2001
From: Nick Cao <nickcao@nichi.co>
Date: Tue, 12 Mar 2024 19:57:05 -0400
Subject: [PATCH] verilator: add patch for "attempted to destroy locked Thread
 Pool" failure in tests

---
 .../science/electronics/verilator/default.nix         | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/science/electronics/verilator/default.nix b/pkgs/applications/science/electronics/verilator/default.nix
index 9923d8a6a419..92f8fa52b91f 100644
--- a/pkgs/applications/science/electronics/verilator/default.nix
+++ b/pkgs/applications/science/electronics/verilator/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, perl, flex, bison, python3, autoconf,
+{ lib, stdenv, fetchFromGitHub, fetchpatch, perl, flex, bison, python3, autoconf,
   which, cmake, ccache, help2man, makeWrapper, glibcLocales,
   systemc, git, numactl }:
 
@@ -13,6 +13,15 @@ stdenv.mkDerivation rec {
     hash = "sha256-Ya3lqK8BfvMVLZUrD2Et6OmptteWXp5VmZb2x2G/V/E=";
   };
 
+  patches = [
+    (fetchpatch {
+      # Fix try-lock spuriously fail in V3ThreadPool destructor
+      # https://github.com/verilator/verilator/pull/4938
+      url = "https://github.com/verilator/verilator/commit/4b9cce4369c78423779238e585ed693c456d464e.patch";
+      hash = "sha256-sGrk/pxqZqUcmJdzQoPlzXMmYqHCOmd9Y2n6ieVNg1U=";
+    })
+  ];
+
   enableParallelBuilding = true;
   buildInputs = [ perl python3 systemc ];  # ccache
   nativeBuildInputs = [ makeWrapper flex bison autoconf help2man git ];