From c18979f7b2d585ff869d16429675618584d1c1c5 Mon Sep 17 00:00:00 2001
From: roconnor <roconnor@r6.ca>
Date: Fri, 22 May 2026 15:00:55 -0400
Subject: [PATCH] rhash: disable compile-time SHA-NI for x86_64 compatibility

Since https://github.com/rhash/RHash/commit/e5b0cb6e7092798b14d2e4d85c49e6367a5f7432 rhash,
by default, hardcodes SHA-NI instructions at compile time.
However, these instructions are not available on older x86_64 CPUs.

In particular, rhash is a dependency of cmake, meaning that no cmake builds can run on CPUs
without SHA-NI instructions with the default configuration.

This patch disables SHA-NI in rhash.

Fixes https://github.com/NixOS/nixpkgs/issues/519825.

See also the parallel Debian fix:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1113938
---
 pkgs/by-name/rh/rhash/package.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/by-name/rh/rhash/package.nix b/pkgs/by-name/rh/rhash/package.nix
index adb2c682ce6d..e8ef05814fee 100644
--- a/pkgs/by-name/rh/rhash/package.nix
+++ b/pkgs/by-name/rh/rhash/package.nix
@@ -29,6 +29,7 @@ stdenv.mkDerivation (finalAttrs: {
   configureFlags = [
     "--ar=${stdenv.cc.targetPrefix}ar"
     "--target=${stdenv.hostPlatform.config}"
+    "--disable-shani"
     (lib.enableFeature enableStatic "static")
     (lib.enableFeature enableStatic "lib-static")
   ];