From 5336a7e40a34ec1579dc9c4470a5f0e7bcd777bc Mon Sep 17 00:00:00 2001
From: Eric Larson <larson.eric.d@gmail.com>
Date: Sun, 4 Aug 2024 14:03:44 -0400
Subject: [PATCH] pyproject.toml: Prefer NumPy 2.0 in build-system.

Build against NumPy 2.0 in the build-system when possible (i.e., on Python 3.9 or later).
This will create code that is compatible with both NumPy 1.x and 2.x, see:

https://numpy.org/devdocs/dev/depending_on_numpy.html#numpy-2-0-specific-advice
---
 pyproject.toml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index 2b0e85a044..82ce83dab5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,6 +9,7 @@ requires = [
     "oldest-supported-numpy; python_version<'3.7'",
     # we need to build with at least 1.16.5 for a limited API bugfix
     "numpy==1.16.5; python_version=='3.7'",
-    "oldest-supported-numpy; python_version>='3.8'"
+    "oldest-supported-numpy; python_version=='3.8'",
+    "numpy>=2,<3; python_version>='3.9'",
 ]
 build-backend = "setuptools.build_meta"