python312Packages.xnd: cleanup, fix (#400567)

pkgs/development/python-modules/xnd/default.nix

@@ -2,32 +2,42 @@
   lib,
   stdenv,
   buildPythonPackage,
-  python,
+  libxnd,
+  setuptools,
   ndtypes,
   libndtypes,
-  libxnd,
-  isPy27,
+  pythonAtLeast,
+  python,
 }:
 
 buildPythonPackage {
   pname = "xnd";
-  format = "setuptools";
-  disabled = isPy27;
   inherit (libxnd) version src meta;
+  pyproject = true;
 
-  propagatedBuildInputs = [ ndtypes ];
+  build-system = [ setuptools ];
+
+  dependencies = [ ndtypes ];
 
   buildInputs = [ libndtypes ];
 
-  postPatch = ''
-    substituteInPlace setup.py \
-      --replace 'include_dirs = ["libxnd", "ndtypes/python/ndtypes"] + INCLUDES' \
-                'include_dirs = ["${libndtypes}/include", "${ndtypes}/include", "${libxnd}/include"]' \
-      --replace 'library_dirs = ["libxnd", "ndtypes/libndtypes"] + LIBS' \
-                'library_dirs = ["${libndtypes}/lib", "${libxnd}/lib"]' \
-      --replace 'runtime_library_dirs = ["$ORIGIN"]' \
-                'runtime_library_dirs = ["${libndtypes}/lib", "${libxnd}/lib"]' \
-  '';
+  postPatch =
+    ''
+      substituteInPlace setup.py \
+        --replace-fail \
+          'include_dirs = ["libxnd", "ndtypes/python/ndtypes"] + INCLUDES' \
+          'include_dirs = ["${libndtypes}/include", "${ndtypes}/include", "${libxnd}/include"]' \
+        --replace-fail \
+          'library_dirs = ["libxnd", "ndtypes/libndtypes"] + LIBS' \
+          'library_dirs = ["${libndtypes}/lib", "${libxnd}/lib"]' \
+        --replace-fail \
+          'runtime_library_dirs = ["$ORIGIN"]' \
+          'runtime_library_dirs = ["${libndtypes}/lib", "${libxnd}/lib"]'
+    ''
+    + lib.optionalString (pythonAtLeast "3.12") ''
+      substituteInPlace python/xnd/util.h \
+        --replace-fail '->ob_digit[i]' '->long_value.ob_digit[i]'
+    '';
 
   postInstall =
     ''
@@ -39,9 +49,13 @@ buildPythonPackage {
     '';
 
   checkPhase = ''
+    runHook preCheck
+
     pushd python
     mv xnd _xnd
     python test_xnd.py
     popd
+
+    runHook postCheck
   '';
 }