Henry Schreiner 1729aae96f
feat: new FindPython support (#2370)
* feat: FindPython support

* refactor: rename to PYBIND11_FINDPYTHON

* docs: Caps fixes

* feat: NOPYTHON mode

* test: check simple call

* docs: add changelog/upgrade guide

* feat: Support Python3 and Python2

* refactor: Use targets in tests

* fix: support CMake 3.4+

* feat: classic search also finds virtual environments

* docs: some updates from @wjakob's review

* fix: wrong name for QUIET mode variable, reported by @skoslowski

* refactor: cleaner output messaging

* fix: support debug Python's in FindPython mode too

* fixup! refactor: cleaner output messaging

* fix: missing pybind11_FOUND and pybind11_INCLUDE_DIR restored to subdir mode

* fix: nicer reporting of Python / PyPy

* fix: out-of-order variable fix

* docs: minor last-minute cleanup
2020-08-19 12:26:26 -04:00

39 lines
1.2 KiB
CMake

cmake_minimum_required(VERSION 3.4)
project(test_installed_module CXX)
# The `cmake_minimum_required(VERSION 3.4...3.18)` syntax does not work with
# some versions of VS that have a patched CMake 3.11. This forces us to emulate
# the behavior using the following workaround:
if(${CMAKE_VERSION} VERSION_LESS 3.18)
cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
else()
cmake_policy(VERSION 3.18)
endif()
project(test_installed_function CXX)
find_package(pybind11 CONFIG REQUIRED)
message(
STATUS "Found pybind11 v${pybind11_VERSION} ${pybind11_VERSION_TYPE}: ${pybind11_INCLUDE_DIRS}")
pybind11_add_module(test_installed_function SHARED NO_EXTRAS ../main.cpp)
set_target_properties(test_installed_function PROPERTIES OUTPUT_NAME test_cmake_build)
if(DEFINED Python_EXECUTABLE)
set(_Python_EXECUTABLE "${Python_EXECUTABLE}")
elseif(DEFINED PYTHON_EXECUTABLE)
set(_Python_EXECUTABLE "${PYTHON_EXECUTABLE}")
else()
message(FATAL_ERROR "No Python executable defined (should not be possible at this stage)")
endif()
add_custom_target(
check_installed_function
${CMAKE_COMMAND}
-E
env
PYTHONPATH=$<TARGET_FILE_DIR:test_installed_function>
${_Python_EXECUTABLE}
${PROJECT_SOURCE_DIR}/../test.py
${PROJECT_NAME})