From 5d979b038935f0728cdee48072cce8679a56b984 Mon Sep 17 00:00:00 2001
From: Sascha Grunert <sgrunert@redhat.com>
Date: Wed, 24 Apr 2024 10:19:57 +0200
Subject: [PATCH] Build s390x binaries using musl libc

Building using musl until NixOS/nixpkgs#306473 is resolved.

Refers to cri-o/cri-o#7911

Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
---
 nix/default-s390x.nix | 5 ++++-
 nix/derivation.nix    | 9 ++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/nix/default-s390x.nix b/nix/default-s390x.nix
index dc80f086..3be20a05 100644
--- a/nix/default-s390x.nix
+++ b/nix/default-s390x.nix
@@ -1,6 +1,9 @@
 (import ./nixpkgs.nix {
   crossSystem = {
-    config = "s390x-unknown-linux-gnu";
+    # TODO: Switch back to glibc when
+    # https://github.com/NixOS/nixpkgs/issues/306473
+    # is resolved.
+    config = "s390x-unknown-linux-musl";
   };
   overlays = [ (import ./overlay.nix) ];
 }).callPackage ./derivation.nix
diff --git a/nix/derivation.nix b/nix/derivation.nix
index c857e711..d8294d06 100644
--- a/nix/derivation.nix
+++ b/nix/derivation.nix
@@ -1,4 +1,6 @@
-{ pkgs }:
+{ stdenv
+, pkgs
+}:
 with pkgs; stdenv.mkDerivation rec {
   name = "conmon";
   src = ./..;
@@ -12,10 +14,11 @@ with pkgs; stdenv.mkDerivation rec {
     pkg-config
     which
   ];
-  buildInputs = [
-    glib
+  buildInputs = lib.optionals (!stdenv.hostPlatform.isMusl) [
     glibc
     glibc.static
+  ] ++ [
+    glib
     libseccomp
     pcre2
   ];