volk_2: init at 2.5.0

Based on the expression deleted in a previous commit, use this
expression in an upcoming commit for gnuradio3_8{,Minimal}.

pkgs/by-name/vo/volk_2/package.nix

@@ -0,0 +1,67 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub,
+  cmake,
+  python311,
+  enableModTool ? true,
+  removeReferencesTo,
+  fetchpatch,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "volk";
+  # Version 2.5.1 seems to cause a build issue for aarch64-darwin[1], and for
+  # gnuradio 3.8 on all platforms[2]. Hence we pin this package to 2.5.0 and
+  # use it for GR 3.8 for all platforms.
+  #
+  # [1]: https://github.com/NixOS/nixpkgs/pull/160152#issuecomment-1043380478A
+  # [2]: https://github.com/NixOS/nixpkgs/pull/330477#issuecomment-2254477735
+  version = "2.5.0";
+
+  src = fetchFromGitHub {
+    owner = "gnuradio";
+    repo = "volk";
+    rev = "v${finalAttrs.version}";
+    sha256 = "sha256-XvX6emv30bSB29EFm6aC+j8NGOxWqHCNv0Hxtdrq/jc=";
+    fetchSubmodules = true;
+  };
+
+  patches = [
+    (fetchpatch {
+      url = "https://raw.githubusercontent.com/macports/macports-ports/e83a55ef196d4283be438c052295b2fc44f3df5b/science/volk/files/patch-cpu_features-add-support-for-ARM64.diff";
+      sha256 = "sha256-MNUntVvKZC4zuQsxGQCItaUaaQ1d31re2qjyPFbySmI=";
+      extraPrefix = "";
+    })
+  ];
+
+  cmakeFlags =
+    [ (lib.cmakeBool "ENABLE_MODTOOL" enableModTool) ]
+    ++ lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [
+      # offset 14335 in1: -1.03372 in2: -1.03371 tolerance was: 1e-05
+      # volk_32f_log2_32f: fail on arch neon
+      "-DCMAKE_CTEST_ARGUMENTS=--exclude-regex;qa_volk_32f_log2_32f"
+    ];
+
+  postInstall = lib.optionalString (!stdenv.isDarwin) ''
+    remove-references-to -t ${stdenv.cc} $(readlink -f $out/lib/libvolk.so)
+  '';
+
+  nativeBuildInputs = [
+    cmake
+    # This version of the project wasn't updated to use Python 3.12 which
+    # doesn't include the deprecated distutils module.
+    python311
+    python311.pkgs.mako
+    removeReferencesTo
+  ];
+
+  doCheck = true;
+
+  meta = {
+    homepage = "http://libvolk.org/";
+    description = "Vector Optimized Library of Kernels (version 2.5.0 - for GR 3.8)";
+    license = lib.licenses.gpl3Plus;
+    maintainers = with lib.maintainers; [ doronbehar ];
+  };
+})