-- Relax setuptools version requirement from >=64 to >=63 to match the version available in the ports tree.
--- pyproject.toml.orig	2026-06-23 15:35:10 UTC
+++ pyproject.toml
@@ -26,7 +26,7 @@ Source = "https://github.com/cvxopt/cvxopt"
 Source = "https://github.com/cvxopt/cvxopt"
 
 [build-system]
-requires = ["setuptools>=64", "setuptools-scm>=8"]
+requires = ["setuptools>=63", "setuptools-scm>=8"]
 build-backend = "setuptools.build_meta"
 
 [tool.cibuildwheel]