From 5957cf94ee00cf1e30f7df5fc42aaaf334aa83b2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandro=20J=C3=A4ckel?= <sandro.jaeckel@gmail.com>
Date: Tue, 7 Apr 2026 05:35:18 +0200
Subject: [PATCH 1/2] suitesparse: remove ? null, remove empty list

---
 .../science/math/suitesparse/default.nix      | 19 +++++++++----------
 pkgs/top-level/all-packages.nix               |  4 +---
 2 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/pkgs/development/libraries/science/math/suitesparse/default.nix b/pkgs/development/libraries/science/math/suitesparse/default.nix
index d9ae4221d718..4cb0c4260e6c 100644
--- a/pkgs/development/libraries/science/math/suitesparse/default.nix
+++ b/pkgs/development/libraries/science/math/suitesparse/default.nix
@@ -12,7 +12,7 @@
   config,
   enableCuda ? config.cudaSupport,
   cudaPackages,
-  openmp ? null,
+  llvmPackages,
 }@inputs:
 
 let
@@ -36,14 +36,13 @@ effectiveStdenv.mkDerivation rec {
     sha256 = "sha256-Anen1YtXsSPhk8DpA4JtADIz9m8oXFl9umlkb4iImf8=";
   };
 
-  nativeBuildInputs = [
-  ]
-  ++ lib.optionals effectiveStdenv.hostPlatform.isDarwin [
-    fixDarwinDylibNames
-  ]
-  ++ lib.optionals enableCuda [
-    cudaPackages.cuda_nvcc
-  ];
+  nativeBuildInputs =
+    lib.optionals effectiveStdenv.hostPlatform.isDarwin [
+      fixDarwinDylibNames
+    ]
+    ++ lib.optionals enableCuda [
+      cudaPackages.cuda_nvcc
+    ];
 
   # Use compatible indexing for lapack and blas used
   buildInputs =
@@ -57,7 +56,7 @@ effectiveStdenv.mkDerivation rec {
       mpfr
     ]
     ++ lib.optionals effectiveStdenv.cc.isClang [
-      openmp
+      llvmPackages.openmp
     ]
     ++ lib.optionals enableCuda [
       cudaPackages.cuda_cudart
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 0c6306892b86..137e33c59f98 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -11627,9 +11627,7 @@ with pkgs;
     lapack = lapack-ilp64;
   };
 
-  suitesparse_5_3 = callPackage ../development/libraries/science/math/suitesparse {
-    inherit (llvmPackages) openmp;
-  };
+  suitesparse_5_3 = callPackage ../development/libraries/science/math/suitesparse { };
   suitesparse = suitesparse_5_3;
 
   trilinos-mpi = trilinos.override { withMPI = true; };

From c6601ac24b9e8450634c66e0bf403a8a45c58f17 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandro=20J=C3=A4ckel?= <sandro.jaeckel@gmail.com>
Date: Wed, 8 Apr 2026 02:36:34 +0200
Subject: [PATCH 2/2] suitesparse_5_3: drop alias

---
 pkgs/top-level/all-packages.nix         | 3 +--
 pkgs/top-level/release-alternatives.nix | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 137e33c59f98..e3d15c568913 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -11627,8 +11627,7 @@ with pkgs;
     lapack = lapack-ilp64;
   };
 
-  suitesparse_5_3 = callPackage ../development/libraries/science/math/suitesparse { };
-  suitesparse = suitesparse_5_3;
+  suitesparse = callPackage ../development/libraries/science/math/suitesparse { };
 
   trilinos-mpi = trilinos.override { withMPI = true; };
 
diff --git a/pkgs/top-level/release-alternatives.nix b/pkgs/top-level/release-alternatives.nix
index d988265f7735..2b8e9c37daf8 100644
--- a/pkgs/top-level/release-alternatives.nix
+++ b/pkgs/top-level/release-alternatives.nix
@@ -18,7 +18,7 @@ let
     "rspamd"
     "octopus"
     "superlu"
-    "suitesparse_5_3"
+    "suitesparse"
     "scs"
     "scalapack"
     "petsc"
@@ -94,7 +94,7 @@ let
   blas64Users = [
     "rspamd"
     "sundials"
-    "suitesparse_5_3"
+    "suitesparse"
     "petsc"
     "cholmod-extra"
     "arpack"