From 372407fca7bde478dcf33927050056053aaac2e6 Mon Sep 17 00:00:00 2001
From: Atharva Tilewale <165510686+AtharvaTilewale@users.noreply.github.com>
Date: Sun, 25 Oct 2026 04:24:06 +0530
Subject: [PATCH] Require setuptools>=77 to build

pyproject.toml declares the license as the PEP 639 SPDX expression
`license = "GPL-2.0-only"`, which setuptools only accepts from version
77.0 onwards, but the build requirement was left unpinned. Build
environments that resolve an older setuptools therefore fail with
"configuration error: `project.license` must be valid exactly by one
definition" instead of reporting the unmet build requirement.

Fixes #199
---
 pyproject.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index 6f21926..6889109 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
 build-backend = "setuptools.build_meta"
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 
 [project]
 name = "plip"