From 845089ab0ff1ce5e1a9bed5e91a0bccbe74c5f5f Mon Sep 17 00:00:00 2001
From: Robert Scott <code@humanleg.org.uk>
Date: Sun, 14 Nov 2021 22:30:11 +0000
Subject: [PATCH] cxxtools: fix build on aarch64

fix gleaned from opensuse package
---
 pkgs/development/libraries/cxxtools/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/libraries/cxxtools/default.nix b/pkgs/development/libraries/cxxtools/default.nix
index 0d8d2498ae73..50417dab1feb 100644
--- a/pkgs/development/libraries/cxxtools/default.nix
+++ b/pkgs/development/libraries/cxxtools/default.nix
@@ -9,6 +9,8 @@ stdenv.mkDerivation rec {
     sha256 = "0hp3qkyhidxkdf8qgkwrnqq5bpahink55mf0yz23rjd7rpbbdswc";
   };
 
+  configureFlags = lib.optional stdenv.isAarch64 "--with-atomictype=pthread";
+
   enableParallelBuilding = true;
 
   meta = {