From 7c1096ab995f8a75b794b1f4ac841ea6caa7a120 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20M=C3=B6ller?= <fabianm88@gmail.com>
Date: Wed, 11 Jan 2023 17:28:46 +0100
Subject: [PATCH] rsync: fix build with musl

The rsync build tries to use IFUNC for SIMD optimizations on x86_64,
which has to be disabled for musl.
---
 pkgs/applications/networking/sync/rsync/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/applications/networking/sync/rsync/default.nix b/pkgs/applications/networking/sync/rsync/default.nix
index 52ff6a5c108a..d1a304f44001 100644
--- a/pkgs/applications/networking/sync/rsync/default.nix
+++ b/pkgs/applications/networking/sync/rsync/default.nix
@@ -43,6 +43,9 @@ stdenv.mkDerivation rec {
     # disable the included zlib explicitly as it otherwise still compiles and
     # links them even.
     "--with-included-zlib=no"
+  ] ++ lib.optionals (stdenv.hostPlatform.isMusl && stdenv.hostPlatform.isx86_64) [
+    # fix `multiversioning needs 'ifunc' which is not supported on this target` error
+    "--disable-roll-simd"
   ];
 
   enableParallelBuilding = true;