Ports from distutils to setuptools (#166)

In [PEP-632](https://peps.python.org/pep-0632/) `distutils` becomes
deprecated and applications should be ported to `setuptools`

At the moment `setuptools` does not implement
`distutils.ccompiler.new_compiler()` see
pypa/setuptools#4540

closes #139

Author: NanoNabla

scorep/subsystem.py

@@ -88,8 +88,9 @@ def generate(scorep_config, keep_files=False):
     # setuptools, which replaces distutils, calls uname in python < 3.9 during distutils bootstraping.
     # When LD_PRELOAD is set, this leads to preloading Score-P to uname, and crashes the later tracing.
     # To avoid this, we need to do the distutils bootstrap as late as possible.
-    import distutils.ccompiler
-    cc = distutils.ccompiler.new_compiler()
+    # Setuptools does not support ccompiler.new_compiler https://github.com/pypa/setuptools/issues/4540
+    from setuptools._distutils.ccompiler import new_compiler
+    cc = new_compiler()
 
     compiled_subsystem = cc.compile(
         [temp_dir + "/scorep_init.c"], output_dir=temp_dir)

setup.py

@@ -1,6 +1,6 @@
 import os
 import sys
-from distutils.core import setup, Extension
+from setuptools import setup, Extension
 import scorep.helper
 from scorep.instrumenter import has_c_instrumenter