From 841b1ebfc4037069668abb8630532245f81d5770 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Denis=20Karada=C5=9F?=
 <54038084+deniskrds@users.noreply.github.com>
Date: Wed, 27 Aug 2025 00:56:15 +0300
Subject: [PATCH] fix(build): require Cython >=3.0 for Python 3.10+ to fix
 wheel build

Python 3.10+ removed `longintrepr.h` (PEP 620), causing wheel build
failures for `btdht`. This change adds a Python version-based dependency
on Cython >=3.0 to restore compatibility while preserving support for
older Python versions.
---
 setup.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/setup.py b/setup.py
index 3e5d542..983db46 100755
--- a/setup.py
+++ b/setup.py
@@ -3,6 +3,7 @@
 from setuptools import setup
 from setuptools import Extension
 import distutils.command.clean
+
 try:
     from Cython.Build import cythonize
     has_cython = True
@@ -21,6 +22,13 @@
     with open(os.path.join(os.path.dirname(__file__), 'README.rst')) as readme:
         README = readme.read()
 
+    setup_requires = []
+    import sys
+    if sys.version_info > (3, 10):
+        setup_requires.append("cython>=3.0")
+    else:
+        setup_requires.append("cython>=0.29,<3.0")
+
     setup(
         name="btdht",
         version=VERSION,
@@ -45,6 +53,7 @@
             'Topic :: Software Development :: Libraries :: Python Modules',
             'Topic :: Communications :: File Sharing'
         ],
+        setup_requires=setup_requires,
         install_requires=["datrie >= 0.7", "netaddr >= 0.7.12", "six >= 1.8"],
         url='https://github.com/nitmir/btdht/',
         download_url="https://github.com/nitmir/btdht/releases/latest",