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From b1cb26389d8c8aa646c4debae429fb1515408812 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
Date: Mon, 13 May 2024 15:51:04 +0200
Subject: [PATCH] Support disabling C extensions via IMMUTABLES_EXT=0
Support using IMMUTABLES_EXT environment variable to control whether
the C extension is built explicitly. When set to a value other than 1,
the extension built is disabled. This is helpful e.g. for future Python
versions where the extension does not work (this is affecting 3.13 right
now, but having an explicit option is more future-proof).
---
setup.py | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/setup.py b/setup.py
index 8cfc9c97..870de2d1 100644
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,8 @@
'unable to read the version from immutables/_version.py')
-if platform.python_implementation() == 'CPython':
+if (platform.python_implementation() == 'CPython' and
+ os.environ.get('IMMUTABLES_EXT', '1') == '1'):
if os.environ.get("DEBUG_IMMUTABLES") == '1':
define_macros = []
undef_macros = ['NDEBUG']
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