From 3f6bad89975eaed7e2c179f4327ebef48157fe93 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 15 Mar 2026 14:59:50 +0000
Subject: [PATCH 1/2] Initial plan


From 45d0996d4afa1117c7c009ad4d3a8a2f8994ce97 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 15 Mar 2026 15:04:20 +0000
Subject: [PATCH 2/2] Fix Windows wheel build: use PYBIND11_FINDPYTHON instead
 of deprecated PYBIND11_NEWPYTHON

The free-threaded CPython 3.14 (cp314t) build on Windows fails with:
  LINK : fatal error LNK1104: cannot open file 'python314.lib'

The root cause is that PYBIND11_NEWPYTHON is deprecated/unrecognized in
pybind11 3.0.x, causing it to fall back to FindPythonLibsNew.cmake which
doesn't properly handle the 't' suffix for free-threaded Python on Windows.

PYBIND11_FINDPYTHON is the correct variable that tells pybind11 to use
CMake's modern FindPython module, which correctly handles free-threaded
Python library naming (python314t.lib vs python314.lib).

Co-authored-by: dfm <350282+dfm@users.noreply.github.com>
---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 80b6518..34eb239 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.15...3.26)
 project(${SKBUILD_PROJECT_NAME} LANGUAGES CXX)
 
-set(PYBIND11_NEWPYTHON ON)
+set(PYBIND11_FINDPYTHON ON)
 find_package(pybind11 CONFIG REQUIRED)
 
 include_directories(