From dc9eb760396d9ec5a8c88ad1a23c569fe12b8cc7 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Fri, 25 Oct 2024 21:17:46 +0200
Subject: [PATCH] libieee1284: fix building for non-x86 musl

---
 pkgs/development/libraries/libieee1284/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/libraries/libieee1284/default.nix b/pkgs/development/libraries/libieee1284/default.nix
index c49e42523137..377d56957123 100644
--- a/pkgs/development/libraries/libieee1284/default.nix
+++ b/pkgs/development/libraries/libieee1284/default.nix
@@ -32,6 +32,11 @@ stdenv.mkDerivation rec {
 
   configureFlags = [
     "--without-python"
+  ] ++ lib.optionals (stdenv.hostPlatform.isMusl && !stdenv.hostPlatform.isx86) [
+    # musl always provides <sys/io.h>, even though the functionality
+    # is x86-specific.
+    # https://www.openwall.com/lists/musl/2024/10/25/2
+    "ac_cv_header_sys_io_h=no"
   ];
 
   prePatch = ''