Move pybind11 from submodule to pyproject.toml:build-system.requires.

.gitmodules

@@ -1,4 +0,0 @@
-[submodule "pybind11"]
-    path = pybind11
-    url = https://github.com/pybind/pybind11.git
-    branch = master

.pre-commit-config.yaml

@@ -48,7 +48,7 @@ repos:
     - id: mypy
       files: "setup.py"
       args: []
-      additional_dependencies: [types-setuptools]
+      additional_dependencies: [types-setuptools, pybind11]
 
 # Changes tabs to spaces
 - repo: https://github.com/Lucas-C/pre-commit-hooks

CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.4...3.18)
 project(cmake_example)
 
-add_subdirectory(pybind11)
+find_package(pybind11)
 pybind11_add_module(cmake_example src/main.cpp)
 
 # EXAMPLE_VERSION_INFO is defined by setup.py and passed into the C++ code as a

MANIFEST.in

@@ -1,5 +1,3 @@
-include README.md LICENSE pybind11/LICENSE
-graft pybind11/include
-graft pybind11/tools
+include README.md LICENSE
 graft src
 global-include CMakeLists.txt *.cmake

pyproject.toml

@@ -4,6 +4,7 @@ requires = [
     "wheel",
     "ninja",
     "cmake>=3.12",
+    "pybind11>=2.9.2",
 ]
 build-backend = "setuptools.build_meta"
 

setup.py

@@ -4,6 +4,7 @@
 import sys
 from pathlib import Path
 
+from pybind11 import get_cmake_dir
 from setuptools import Extension, setup
 from setuptools.command.build_ext import build_ext
 
@@ -46,6 +47,7 @@ def build_extension(self, ext: CMakeExtension) -> None:
         # from Python.
         cmake_args = [
             f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={extdir}{os.sep}",
+            f"-Dpybind11_DIR={get_cmake_dir()}",
             f"-DPYTHON_EXECUTABLE={sys.executable}",
             f"-DCMAKE_BUILD_TYPE={cfg}",  # not used on MSVC, but no harm
         ]