Starting with Debian's Python 3.10, the default install scheme is
'posix_local' which is a Debian specific scheme based on 'posix_prefix'
but with an added 'local' prefix. This is the default so users doing
system wide manual installations of python modules end up in
'/usr/local'. This interferes with our autotools based install which
already defaults to '/usr/local' and expects a provided prefix to be
used verbatim.
Monkeypatch sysconfig to override this scheme and use 'posix_prefix'
instead.
Change-Id: I41973f6db4966519aa1c7e74a9d1e9b5d90bf7ea
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Reviewed-on: https://review.lttng.org/c/babeltrace/+/10343
Tested-by: jenkins <jenkins@lttng.org>
Reviewed-by: Philippe Proulx <eeppeliteloop@gmail.com>
-if sys.version_info < (3, 12):
- from distutils.core import setup, Extension
- import distutils.sysconfig as sysconfig
-else:
+# Distutils was removed in Python 3.12, use setuptools as an alternative.
+if sys.version_info >= (3, 12):
from setuptools import setup, Extension
from setuptools import setup, Extension
+else:
+ from distutils.core import setup, Extension
+
+# Starting with Debian's Python 3.10, the default install scheme is
+# 'posix_local' which is a Debian specific scheme based on 'posix_prefix' but
+# with an added 'local' prefix. This is the default so users doing system wide
+# manual installations of python modules end up in '/usr/local'. This
+# interferes with our autotools based install which already defaults to
+# '/usr/local' and expect a provided prefix to be used verbatim.
+#
+# Monkeypatch sysconfig to override this scheme and use 'posix_prefix' instead.
+if sys.version_info >= (3, 10):
+ original_get_preferred_scheme = sysconfig.get_preferred_scheme
+
+ def our_get_preferred_scheme(key):
+ scheme = original_get_preferred_scheme(key)
+ if scheme == "posix_local":
+ return "posix_prefix"
+ else:
+ return scheme
+
+ sysconfig.get_preferred_scheme = our_get_preferred_scheme
+
+else:
+ import distutils.sysconfig as sysconfig
+
PY_PATH_WARN_MSG = """
-------------------------------------WARNING------------------------------------
The install directory used:\n ({})\nis not included in your PYTHONPATH.
PY_PATH_WARN_MSG = """
-------------------------------------WARNING------------------------------------
The install directory used:\n ({})\nis not included in your PYTHONPATH.