1 files changed, 60 insertions, 0 deletions
diff --git a/debian/patches/3-debian-sysconfig-layout.patch b/debian/patches/3-debian-sysconfig-layout.patch
new file mode 100644
index 0000000..5a75a91
--- /dev/null
+++ b/debian/patches/3-debian-sysconfig-layout.patch
@@ -0,0 +1,60 @@
+From 9cea9e351d20d58f447b06baa7bb9a3f5cc40ea4 Mon Sep 17 00:00:00 2001
+From: Stefano Rivera <stefano@rivera.za.net>
+Date: Mon, 19 Dec 2022 19:56:32 -0400
+Subject: [PATCH] Update the Debian Python path detection for setuptools >= 60
+
+Debian now (since Python 3.10.2-6) adds the deb_system scheme to
+sysconfig. Newer distutils (such as bundled with setuptools >= 60) adds
+fetch schemes from sysconfig, rather than duplicating the sysconfig
+schemes statically in distutils.command.install.
+
+This change broke meson's deb_system check.
+
+This patch replaces that mechanism (for newer Debian releases) with
+explicit scheme selection, which is far simpler.
+But it also retains the old mechanism, for older Debian releases that
+require it (Debian <= 11).
+
+Fixes: #8739 (for python module, and makes similar minimal changes to the python3 module)
+
+Fixes: https://bugs.debian.org/1026312
+
+Forwarded: https://github.com/mesonbuild/meson/pull/11211
+---
+ mesonbuild/modules/python.py | 14 +++++++++++---
+ 1 file changed, 11 insertions(+), 3 deletions(-)
+
+diff --git a/mesonbuild/modules/python.py b/mesonbuild/modules/python.py
+index f74d10e4c..68632af2d 100644
+--- a/mesonbuild/modules/python.py
++++ b/mesonbuild/modules/python.py
+@@ -363,15 +363,23 @@ def get_distutils_paths(scheme=None, prefix=None):
+ # default scheme to a custom one pointing to /usr/local and replacing
+ # site-packages with dist-packages.
+ # See https://github.com/mesonbuild/meson/issues/8739.
+-# XXX: We should be using sysconfig, but Debian only patches distutils.
++# Until version 3.10.2-6, Debian only patched distutils, not sysconfig.
+ 
+ if 'deb_system' in distutils.command.install.INSTALL_SCHEMES:
++    # Debian systems before setuptools-bundled distutils was used by default
+     paths = get_distutils_paths(scheme='deb_system')
+     install_paths = get_distutils_paths(scheme='deb_system', prefix='')
+ else:
+-    paths = sysconfig.get_paths()
++    if 'deb_system' in sysconfig.get_scheme_names():
++        # Use Debian's custom deb_system scheme (with our prefix)
++        scheme = 'deb_system'
++    elif sys.version_info >= (3, 10):
++        scheme = sysconfig.get_default_scheme()
++    else:
++        scheme = sysconfig._get_default_scheme()
++    paths = sysconfig.get_paths(scheme=scheme)
+     empty_vars = {'base': '', 'platbase': '', 'installed_base': ''}
+-    install_paths = sysconfig.get_paths(vars=empty_vars)
++    install_paths = sysconfig.get_paths(vars=empty_vars, scheme=scheme)
+ 
+ def links_against_libpython():
+     from distutils.core import Distribution, Extension
+-- 
+2.35.1
+