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cmake_minimum_required(VERSION 3.4)
# 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_subdirectory_target CXX)
add_subdirectory("${pybind11_SOURCE_DIR}" pybind11)
add_library(test_subdirectory_target MODULE ../main.cpp)
set_target_properties(test_subdirectory_target PROPERTIES OUTPUT_NAME test_cmake_build)
target_link_libraries(test_subdirectory_target PRIVATE pybind11::module)
# Make sure result is, for example, test_installed_target.so, not libtest_installed_target.dylib
pybind11_extension(test_subdirectory_target)
if(DEFINED Python_EXECUTABLE)
set(_Python_EXECUTABLE "${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_subdirectory_target
${CMAKE_COMMAND}
-E
env
PYTHONPATH=$<TARGET_FILE_DIR:test_subdirectory_target>
${_Python_EXECUTABLE}
${PROJECT_SOURCE_DIR}/../test.py
${PROJECT_NAME})
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