Add BSD licensing information.

AutoPyBind11Config.cmake

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
 #
 # FIND_PACKAGE(AutoPyBind11 REQUIRED
 #

CMakeLists.txt

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
+
 project(Wrapper_Example CXX)
 cmake_minimum_required(VERSION 3.12)
 

CTestConfig.cmake

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
+
 ## This file should be placed in the root directory of your project.
 ## Then modify the CMakeLists.txt file in the root directory of your
 ## project to incorporate the testing dashboard.

CTestCustom.cmake.in

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
+
 list (APPEND CTEST_CUSTOM_WARNING_EXCEPTION
   "cast.h.*warning C4197.*volatile")
 list (APPEND CTEST_CUSTOM_ERROR_EXCEPTION "DeprecationWarning: time.clock"

Copyright.txt

+autopybind11 - A Python library to generate PyBind11 for C++
+Copyright 2020 Kitware, Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+* Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+
+* Neither the name of Kitware, Inc. nor the names of Contributors
+  may be used to endorse or promote products derived from this
+  software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+------------------------------------------------------------------------------
+
+Testing directories within this repository contain BSD code from other projects.
+This external code can be found in:
+
+* example/operator_testing/Vector2.hpp
+* bindings_sorter.py

PyBindHelper.cmake

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
+
 macro(autopybind11_fetch_build_pybind11)
 
     include(FetchContent)

README.rst

@@ -4,6 +4,12 @@ Wrapper Generator
 This repository contains the first set of Python code which could be used to
 automatically generate PyBin11 code from C++ files with proper annotation.
 
+License
++++++++
+
+This repository is distributed under the OSI-approved BSD 3-clause License.
+See Copyright.txt_ for details.
+
 Program execution
 +++++++++++++++++
 
@@ -106,3 +112,4 @@ or setup a CMake build system and execute the ``WG_Linter`` test::
   $ ctest -R WG_Linter -VV
 
 .. _pycodestyle: https://pypi.org/project/pycodestyle/
+.. _Copyright.txt: Copyright.txt

autopybind11.py

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
+
+
 from configargparse import ArgParser, YAMLConfigFileParser
 from op_names import names_dict, arg_dependent_ops
 from bindings_sorter import get_binding_order

example/CMakeLists.txt

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
+
 set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS TRUE)
 add_library(wrapper_example INTERFACE)
 target_sources(wrapper_example INTERFACE

example/additional/CMakeLists.txt

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
+
 add_library(additional_example SHARED ${CMAKE_CURRENT_SOURCE_DIR}/additional.cxx ${CMAKE_CURRENT_SOURCE_DIR}/additional.hpp)
 target_include_directories(additional_example PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 autopybind11_add_module("additional"

example/additional/additional.cxx

+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt                                                      */
 #include "additional.hpp"
 
 

example/additional/additional.hpp

+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt                                                      */
 #ifndef ADDITIONAL_TEST_HPP
 #define ADDITIONAL_TEST_HPP
 

example/additional/tests/additionalTests.py

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
 import os
 import sys
 import unittest

example/config.yml

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
+
 private_members : true
 
 cppbody : |

example/inheritance_features/CMakeLists.txt

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
+
 add_library(inheritance INTERFACE)
 target_sources(inheritance  INTERFACE
   ${CMAKE_CURRENT_SOURCE_DIR}/base.hpp

example/inheritance_features/base.hpp

+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt                                                      */
+
 #ifndef BASE_HPP
 #define BASE_HPP
 

example/inheritance_features/derived1.hpp

+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt                                                      */
+
 #ifndef DERIVED1_HPP
 #define DERIVED1_HPP
 

example/inheritance_features/derived2.hpp

+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt                                                      */
+
 #ifndef DERIVED2_HPP
 #define DERIVED2_HPP
 

example/multi_namespaced/CMakeLists.txt

+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt
+
 add_library(multi_namespaced INTERFACE)
 target_sources(multi_namespaced INTERFACE
   ${CMAKE_CURRENT_SOURCE_DIR}/no_namespace.hpp

example/multi_namespaced/compound_namespace.hpp

+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt                                                      */
 #ifndef CMPND_NAMESPACE_HPP
 #define CMPND_NAMESPACE_HPP
 namespace first