https://github.com/ukoethe/vigra/commit/1203cccaed97c276d7c3cf6886730d03f6e8dfc6

(But with some edits for more distutils removals & rebase.)

From 1203cccaed97c276d7c3cf6886730d03f6e8dfc6 Mon Sep 17 00:00:00 2001
From: Mark Harfouche <mark.harfouche@gmail.com>
Date: Sat, 30 Sep 2023 16:25:08 -0400
Subject: [PATCH] Do not use distutils since it is deprecated

--- a/vigranumpy/setup.py.cmake2.in
+++ b/vigranumpy/setup.py.cmake2.in
@@ -1,5 +1,8 @@
-import distutils, ctypes.util, shutil, os, sys
-from distutils.core import setup
+import ctypes.util
+import shutil
+import os
+import sys
+from setuptools import setup
 
 # copy the required DLLs to the directory $vigranumpy_tmp_dir/dlls
 # if additional libraries are linked dynamically (e.g. tiff, png)
--- a/vigranumpy/setup.py.in
+++ b/vigranumpy/setup.py.in
@@ -1,5 +1,9 @@
-import distutils, ctypes.util, shutil, os, sys
-from distutils.core import setup
+import ctypes.util
+import shutil
+import os
+import sys
+from setuptools import setup
+
 
 # copy the required DLLs to the directory $vigranumpy_tmp_dir/dlls
 # if additional libraries are linked dynamically (e.g. tiff, png)

--- a/config/FindVIGRANUMPY_DEPENDENCIES.cmake
+++ b/config/FindVIGRANUMPY_DEPENDENCIES.cmake
@@ -40,7 +40,7 @@ IF(PYTHONINTERP_FOUND)
     #
     ######################################################################
     execute_process(COMMAND ${PYTHON_EXECUTABLE} -c
-                    "from distutils.sysconfig import *; print(get_python_inc())"
+                    "import sysconfig; print(sysconfig.get_paths()['include'])"
                     OUTPUT_VARIABLE PYTHON_INCLUDE OUTPUT_STRIP_TRAILING_WHITESPACE)
     SET(PYTHON_INCLUDE_PATH ${PYTHON_INCLUDE}
         CACHE PATH "Path to Python include files"
@@ -66,10 +66,10 @@ IF(PYTHONINTERP_FOUND)
             set(PYTHON_LIBRARY_NAME python${PYTHON_VERSION_MAJOR}${PYTHON_VERSION_MINOR})
         ELSE()
             execute_process(COMMAND ${PYTHON_EXECUTABLE} -c
-                             "from distutils.sysconfig import *; print(get_config_var('LDLIBRARY'))"
+                             "import sysconfig; print(sysconfig.get_config_var('LDLIBRARY'))"
                               OUTPUT_VARIABLE PYTHON_LIBRARY_NAME OUTPUT_STRIP_TRAILING_WHITESPACE)
             execute_process(COMMAND ${PYTHON_EXECUTABLE} -c
-                             "from distutils.sysconfig import *; print(get_config_var('LIBDIR'))"
+                             "import sysconfig; print(sysconfig.get_config_var('LIBDIR'))"
                                OUTPUT_VARIABLE PYTHON_LIBRARY_PREFIX OUTPUT_STRIP_TRAILING_WHITESPACE)
         ENDIF()
         FIND_LIBRARY(PYTHON_LIBRARIES ${PYTHON_LIBRARY_NAME} HINTS "${PYTHON_LIBRARY_PREFIX}" "${PYTHON_PREFIX}"
@@ -139,7 +139,7 @@ IF(PYTHONINTERP_FOUND)
     ######################################################################
     IF(NOT DEFINED VIGRANUMPY_INSTALL_DIR OR VIGRANUMPY_INSTALL_DIR MATCHES "^$")
         execute_process(COMMAND ${PYTHON_EXECUTABLE} -c
-                         "from distutils.sysconfig import *; print(get_python_lib(1))"
+                         "import sysconfig; print(sysconfig.get_paths()['purelib'])"
                           OUTPUT_VARIABLE PYTHON_SITE_PACKAGES OUTPUT_STRIP_TRAILING_WHITESPACE)
         FILE(TO_CMAKE_PATH ${PYTHON_SITE_PACKAGES} VIGRANUMPY_INSTALL_DIR)
     ENDIF()