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From 5f96e35b873d6230970fd63ba2e706bbd3f4e26f Mon Sep 17 00:00:00 2001
From: Eli Schwartz <eschwartz93@gmail.com>
Date: Fri, 8 Sep 2023 16:54:48 -0400
Subject: [PATCH 1/7] python dependency: ensure that setuptools doesn't inject
itself into distutils
We do not use setuptools for anything, and only lightly use distutils.
Unpredictable issues can occur due to setuptools monkey-patching, which
interferes with our intended use. Tell setuptools to simply never get
involved.
Note: while it's otherwise possible to check if the probe is run using
sys.executable and avoid forking, setuptools unconditionally injects
itself at startup in a way that requires subprocess isolation to
disable.
(cherry picked from commit 9f610ad5b72ea91de2d7aeb6f3266d0a7477062e)
---
mesonbuild/dependencies/python.py | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/mesonbuild/dependencies/python.py b/mesonbuild/dependencies/python.py
index 160772888..f04494674 100644
--- a/mesonbuild/dependencies/python.py
+++ b/mesonbuild/dependencies/python.py
@@ -113,7 +113,9 @@ class BasicPythonExternalProgram(ExternalProgram):
with importlib.resources.path('mesonbuild.scripts', 'python_info.py') as f:
cmd = self.get_command() + [str(f)]
- p, stdout, stderr = mesonlib.Popen_safe(cmd)
+ env = os.environ.copy()
+ env['SETUPTOOLS_USE_DISTUTILS'] = 'stdlib'
+ p, stdout, stderr = mesonlib.Popen_safe(cmd, env=env)
try:
info = json.loads(stdout)
--
2.42.0
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