From c0fc8f51a216ab872bc6a5cf2eba2e225f1011d5 Mon Sep 17 00:00:00 2001
From: Luiz Ribeiro <luizribeiro@gmail.com>
Date: Sun, 3 Jul 2022 12:47:51 -0500
Subject: [PATCH] zstd: Fix build on riscv hosts

---
 pkgs/tools/compression/zstd/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/tools/compression/zstd/default.nix b/pkgs/tools/compression/zstd/default.nix
index 0bff5110c93..87d499614bf 100644
--- a/pkgs/tools/compression/zstd/default.nix
+++ b/pkgs/tools/compression/zstd/default.nix
@@ -41,6 +41,8 @@ stdenv.mkDerivation rec {
       tests/playTests.sh
   '';
 
+  LDFLAGS = lib.optionalString stdenv.hostPlatform.isRiscV "-latomic";
+
   cmakeFlags = lib.attrsets.mapAttrsToList
     (name: value: "-DZSTD_${name}:BOOL=${if value then "ON" else "OFF"}") {
       BUILD_SHARED = !static;