From 4306b245f9bc7ac89d10f2026e718f030ee10c3d Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <pcc@google.com>
Date: Wed, 8 Oct 2025 13:27:41 -0700
Subject: [PATCH 1/2] openblas: 0.3.30 -> 0.3.31

Diff: https://github.com/OpenMathLib/OpenBLAS/compare/v0.3.30...v0.3.31

Should also fix cross compilation
---
 .../science/math/openblas/default.nix          | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/pkgs/development/libraries/science/math/openblas/default.nix b/pkgs/development/libraries/science/math/openblas/default.nix
index f3eaef61b82c..d3de85b2b936 100644
--- a/pkgs/development/libraries/science/math/openblas/default.nix
+++ b/pkgs/development/libraries/science/math/openblas/default.nix
@@ -2,7 +2,6 @@
   lib,
   stdenv,
   fetchFromGitHub,
-  fetchpatch,
   perl,
   which,
   # Most packages depending on openblas expect integer width to match
@@ -181,7 +180,7 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "openblas";
-  version = "0.3.30";
+  version = "0.3.31";
 
   outputs = [
     "out"
@@ -192,22 +191,9 @@ stdenv.mkDerivation rec {
     owner = "OpenMathLib";
     repo = "OpenBLAS";
     rev = "v${version}";
-    hash = "sha256-foP2OXUL6ttgYvCxLsxUiVdkPoTvGiHomdNudbSUmSE=";
+    hash = "sha256-YBR81GOLnTsc0g1SZL+j31/OFucJrBRFqtOTV8lcy8U=";
   };
 
-  patches = [
-    # Remove this once https://github.com/OpenMathLib/OpenBLAS/issues/5414 is
-    # resolved.
-    ./disable-sme-sgemm-kernel.patch
-
-    # https://github.com/OpenMathLib/OpenBLAS/issues/5460
-    (fetchpatch {
-      name = "0001-openblas-Use-generic-kernels-for-SCAL-on-POWER4-5.patch";
-      url = "https://github.com/OpenMathLib/OpenBLAS/commit/14c9dcaac70d9382de00ba4418643d9587f4950e.patch";
-      hash = "sha256-mIOqRc7tE1rV/krrAu630JwApZHdeHCdVmO5j6eDC8U=";
-    })
-  ];
-
   postPatch = ''
     # cc1: error: invalid feature modifier 'sve2' in '-march=armv8.5-a+sve+sve2+bf16'
     substituteInPlace Makefile.arm64 --replace "+sve2+bf16" ""

From e015f2cc80fc85959a34d6e4366b2be00e7eabb9 Mon Sep 17 00:00:00 2001
From: Doron Behar <doron.behar@gmail.com>
Date: Mon, 19 Jan 2026 01:55:28 +0200
Subject: [PATCH 2/2] openblas: use --replace-fail substitution

---
 pkgs/development/libraries/science/math/openblas/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/science/math/openblas/default.nix b/pkgs/development/libraries/science/math/openblas/default.nix
index d3de85b2b936..9c186314130d 100644
--- a/pkgs/development/libraries/science/math/openblas/default.nix
+++ b/pkgs/development/libraries/science/math/openblas/default.nix
@@ -196,7 +196,7 @@ stdenv.mkDerivation rec {
 
   postPatch = ''
     # cc1: error: invalid feature modifier 'sve2' in '-march=armv8.5-a+sve+sve2+bf16'
-    substituteInPlace Makefile.arm64 --replace "+sve2+bf16" ""
+    substituteInPlace Makefile.arm64 --replace-fail "+sve2+bf16" ""
   '';
 
   inherit blas64;