From 2e795a603c5803b2aa47a8fd87f8ea157ab5aa3d Mon Sep 17 00:00:00 2001
From: Diego <diego@strebel.com>
Date: Mon, 16 Feb 2026 22:50:09 +0100
Subject: [PATCH] mlucas: init at 21.0.2

---
 pkgs/by-name/ml/mlucas/package.nix | 76 ++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 pkgs/by-name/ml/mlucas/package.nix

diff --git a/pkgs/by-name/ml/mlucas/package.nix b/pkgs/by-name/ml/mlucas/package.nix
new file mode 100644
index 000000000000..4eeca3ea6eaf
--- /dev/null
+++ b/pkgs/by-name/ml/mlucas/package.nix
@@ -0,0 +1,76 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  gmp,
+  versionCheckHook,
+}:
+let
+
+  platform = if stdenv.hostPlatform.system == "aarch64-linux" then "asimd" else "avx2";
+
+in
+stdenv.mkDerivation (finalAttrs: {
+  pname = "mlucas";
+  # A specific git commit is used because there are no official GitHub releases.
+  version = "21.0.2";
+
+  src = fetchFromGitHub {
+    owner = "primesearch";
+    repo = "Mlucas";
+    rev = "d082c2a00b42410d6d87605212c68be25f9f4d7d";
+    hash = "sha256-YD2Kt8SD5sxZH8Em8jDZ1qSfIhgLUklOdkORmVR588o=";
+  };
+
+  enableParallelBuilding = true;
+
+  buildInputs = [
+    gmp
+  ];
+
+  postPatch = ''
+    chmod +x makemake.sh
+    patchShebangs makemake.sh
+  '';
+
+  env.NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-pointer-types";
+
+  buildPhase = ''
+    runHook preBuild
+
+    ./makemake.sh ${platform}
+
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    install -Dm755 obj_${platform}/Mlucas $out/bin/mlucas
+
+    runHook postInstall
+  '';
+
+  nativeInstallCheckInputs = [ versionCheckHook ];
+  doInstallCheck = true;
+
+  meta = {
+    description = "Open-source program for primality testing of Mersenne numbers";
+    longDescription = ''
+      This program may be used to test any suitable number as you wish, but it is preferable that you do so in a coordinated fashion,
+      as part of the Great Internet Mersenne Prime Search (GIMPS). Note that on x86 processors Mlucas is not as efficient
+      as the main GIMPS client, George Woltman's Prime95 program (a.k.a. mprime for the linux version),
+      but that program is not 100% open-source. Prime95 is also only available for platforms based on the
+      x86 processor architecture. The help.txt file in the Github repo includes a variety of usage information
+      not covered in the original README.
+    '';
+    homepage = "https://github.com/primesearch/Mlucas";
+    maintainers = with lib.maintainers; [ dstremur ];
+    license = lib.licenses.gpl3Only;
+    platforms = [
+      "x86_64-linux"
+      "aarch64-linux"
+    ];
+    mainProgram = "mlucas";
+  };
+})