Fixed macOS build of xmake

.reuse/dep5

@@ -1,11 +1,9 @@
 Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 
-Files: flake.lock
-       pkgs/python_ot/poetry.lock
+Files: *.lock
+       *.patch
        pkgs/python_ot/poetry-git-overlay.nix
-       pkgs/verilator/fix.patch
        README.md
        **/README.md
-       pkgs/surfer/Cargo.lock
 Copyright: lowRISC contributors
 License: MIT

pkgs/default.nix

@@ -19,7 +19,7 @@
   # CherIoT packages
   spike-ibex-cosim = pkgs.callPackage ./spike.nix {};
   llvm_cheriot = pkgs.callPackage ./llvm_cheriot.nix {};
-  xmake = import ./xmake.nix {inherit pkgs;};
+  xmake = pkgs.callPackage ./xmake {};
   cheriot-sim = pkgs.callPackage ./cheriot-sim.nix {};
 
   container-hotplug = pkgs.callPackage ./container-hotplug {};

pkgs/xmake/default.nix

@@ -0,0 +1,49 @@
+# Copyright lowRISC Contributors.
+# SPDX-License-Identifier: MIT
+{
+  lib,
+  stdenv,
+  fetchurl,
+  pkg-config,
+  lua,
+  readline,
+  ncurses,
+  lz4,
+  darwin,
+}:
+stdenv.mkDerivation rec {
+  pname = "xmake";
+  version = "2.9.1";
+
+  src = fetchurl {
+    url = "https://github.com/xmake-io/xmake/releases/download/v${version}/xmake-v${version}.tar.gz";
+    hash = "sha256-ox2++MMDrqEmgGi0sawa7BQqxBJMfLfZx+61fEFPjRU=";
+  };
+
+  # This patch is needed because, when building with Nix,
+  # coreutils' and findutils' versions of date and find are provided,
+  # which have slightly different behaviour to the macOS versions.
+  patches = [./macosx.patch];
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+
+  buildInputs =
+    [
+      lua
+      readline
+      ncurses
+      lz4
+    ]
+    ++ lib.optional stdenv.isDarwin darwin.apple_sdk.frameworks.CoreServices;
+
+  strictDeps = true;
+
+  meta = with lib; {
+    description = "A cross-platform build utility based on Lua";
+    homepage = "https://xmake.io";
+    license = licenses.asl20;
+    platforms = lua.meta.platforms;
+  };
+}

pkgs/xmake/macosx.patch

@@ -0,0 +1,26 @@
+diff --git a/configure b/configure
+index 9f4232d50..96cee6ae7 100755
+--- a/configure
++++ b/configure
+@@ -242,11 +242,7 @@ _os_find() {
+     local name="${2}"
+     local depth="${3}"
+     if test_nz "${depth}"; then
+-        if is_host "macosx"; then
+-            _ret=$(find "${dir}" -depth "${depth}" -type f -name "${name}")
+-        else
+-            _ret=$(find "${dir}" -maxdepth "${depth}" -mindepth "${depth}" -type f -name "${name}")
+-        fi
++        _ret=$(find "${dir}" -maxdepth "${depth}" -mindepth "${depth}" -type f -name "${name}")
+     else
+         _ret=$(find "${dir}" -type f -name "${name}")
+     fi
+@@ -258,8 +254,6 @@ _os_find() {
+ _os_date() {
+     if test_z "${SOURCE_DATE_EPOCH}"; then
+         _ret=$(date +"${1}")
+-    elif is_host "macosx" "freebsd" "bsd"; then
+-        _ret=$(date -u -r "$SOURCE_DATE_EPOCH" +"${1}")
+     else
+         _ret=$(date -u -d "@$SOURCE_DATE_EPOCH" +"${1}")
+     fi