diff options
Diffstat (limited to '3rdparty/pybind11/tools/pybind11NewTools.cmake')
| -rw-r--r-- | 3rdparty/pybind11/tools/pybind11NewTools.cmake | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/3rdparty/pybind11/tools/pybind11NewTools.cmake b/3rdparty/pybind11/tools/pybind11NewTools.cmake new file mode 100644 index 00000000..357cc61c --- /dev/null +++ b/3rdparty/pybind11/tools/pybind11NewTools.cmake @@ -0,0 +1,246 @@ +# tools/pybind11NewTools.cmake -- Build system for the pybind11 modules +# +# Copyright (c) 2020 Wenzel Jakob <wenzel@inf.ethz.ch> and Henry Schreiner +# +# All rights reserved. Use of this source code is governed by a +# BSD-style license that can be found in the LICENSE file. + +get_property( + is_config + TARGET pybind11::headers + PROPERTY IMPORTED) + +if(pybind11_FIND_QUIETLY) + set(_pybind11_quiet QUIET) +endif() + +if(CMAKE_VERSION VERSION_LESS 3.12) + message(FATAL_ERROR "You cannot use the new FindPython module with CMake < 3.12") +endif() + +if(NOT Python_FOUND + AND NOT Python3_FOUND + AND NOT Python2_FOUND) + if(NOT DEFINED Python_FIND_IMPLEMENTATIONS) + set(Python_FIND_IMPLEMENTATIONS CPython PyPy) + endif() + + # GitHub Actions like activation + if(NOT DEFINED Python_ROOT_DIR AND DEFINED ENV{pythonLocation}) + set(Python_ROOT_DIR "$ENV{pythonLocation}") + endif() + + find_package(Python REQUIRED COMPONENTS Interpreter Development ${_pybind11_quiet}) + + # If we are in submodule mode, export the Python targets to global targets. + # If this behavior is not desired, FindPython _before_ pybind11. + if(NOT is_config) + set_property(TARGET Python::Python PROPERTY IMPORTED_GLOBAL TRUE) + set_property(TARGET Python::Interpreter PROPERTY IMPORTED_GLOBAL TRUE) + if(TARGET Python::Module) + set_property(TARGET Python::Module PROPERTY IMPORTED_GLOBAL TRUE) + endif() + endif() +endif() + +if(Python_FOUND) + set(_Python + Python + CACHE INTERNAL "" FORCE) +elseif(Python3_FOUND AND NOT Python2_FOUND) + set(_Python + Python3 + CACHE INTERNAL "" FORCE) +elseif(Python2_FOUND AND NOT Python3_FOUND) + set(_Python + Python2 + CACHE INTERNAL "" FORCE) +else() + message(AUTHOR_WARNING "Python2 and Python3 both present, pybind11 in " + "PYBIND11_NOPYTHON mode (manually activate to silence warning)") + set(_pybind11_nopython ON) + return() +endif() + +if(PYBIND11_MASTER_PROJECT) + if(${_Python}_INTERPRETER_ID MATCHES "PyPy") + message(STATUS "PyPy ${${_Python}_PyPy_VERSION} (Py ${${_Python}_VERSION})") + else() + message(STATUS "${_Python} ${${_Python}_VERSION}") + endif() +endif() + +# If a user finds Python, they may forget to include the Interpreter component +# and the following two steps require it. It is highly recommended by CMake +# when finding development libraries anyway, so we will require it. +if(NOT DEFINED ${_Python}_EXECUTABLE) + message( + FATAL_ERROR + "${_Python} was found without the Interpreter component. Pybind11 requires this component.") + +endif() + +if(NOT DEFINED PYTHON_IS_DEBUG) + # Debug check - see https://stackoverflow.com/questions/646518/python-how-to-detect-debug-Interpreter + execute_process( + COMMAND "${${_Python}_EXECUTABLE}" "-c" + "import sys; sys.exit(hasattr(sys, 'gettotalrefcount'))" + RESULT_VARIABLE _PYTHON_IS_DEBUG) + set(PYTHON_IS_DEBUG + "${_PYTHON_IS_DEBUG}" + CACHE INTERNAL "Python debug status") +endif() + +# Get the suffix - SO is deprecated, should use EXT_SUFFIX, but this is +# required for PyPy3 (as of 7.3.1) +if(NOT DEFINED PYTHON_MODULE_EXTENSION) + execute_process( + COMMAND + "${${_Python}_EXECUTABLE}" "-c" + "from distutils import sysconfig as s;print(s.get_config_var('EXT_SUFFIX') or s.get_config_var('SO'))" + OUTPUT_VARIABLE _PYTHON_MODULE_EXTENSION + ERROR_VARIABLE _PYTHON_MODULE_EXTENSION_ERR + OUTPUT_STRIP_TRAILING_WHITESPACE) + + if(_PYTHON_MODULE_EXTENSION STREQUAL "") + message( + FATAL_ERROR "pybind11 could not query the module file extension, likely the 'distutils'" + "package is not installed. Full error message:\n${_PYTHON_MODULE_EXTENSION_ERR}") + endif() + + # This needs to be available for the pybind11_extension function + set(PYTHON_MODULE_EXTENSION + "${_PYTHON_MODULE_EXTENSION}" + CACHE INTERNAL "") +endif() + +# Python debug libraries expose slightly different objects before 3.8 +# https://docs.python.org/3.6/c-api/intro.html#debugging-builds +# https://stackoverflow.com/questions/39161202/how-to-work-around-missing-pymodule-create2-in-amd64-win-python35-d-lib +if(PYTHON_IS_DEBUG) + set_property( + TARGET pybind11::pybind11 + APPEND + PROPERTY INTERFACE_COMPILE_DEFINITIONS Py_DEBUG) +endif() + +# Check on every access - since Python2 and Python3 could have been used - do nothing in that case. + +if(DEFINED ${_Python}_INCLUDE_DIRS) + set_property( + TARGET pybind11::pybind11 + APPEND + PROPERTY INTERFACE_INCLUDE_DIRECTORIES $<BUILD_INTERFACE:${${_Python}_INCLUDE_DIRS}>) + set(pybind11_INCLUDE_DIRS + "${pybind11_INCLUDE_DIR}" "${${_Python}_INCLUDE_DIRS}" + CACHE INTERNAL "Directories where pybind11 and possibly Python headers are located") +endif() + +if(DEFINED ${_Python}_VERSION AND ${_Python}_VERSION VERSION_LESS 3) + set_property( + TARGET pybind11::pybind11 + APPEND + PROPERTY INTERFACE_LINK_LIBRARIES pybind11::python2_no_register) +endif() + +# In CMake 3.18+, you can find these separately, so include an if +if(TARGET ${_Python}::${_Python}) + set_property( + TARGET pybind11::embed + APPEND + PROPERTY INTERFACE_LINK_LIBRARIES ${_Python}::${_Python}) +endif() + +# CMake 3.15+ has this +if(TARGET ${_Python}::Module) + set_property( + TARGET pybind11::module + APPEND + PROPERTY INTERFACE_LINK_LIBRARIES ${_Python}::Module) +else() + set_property( + TARGET pybind11::module + APPEND + PROPERTY INTERFACE_LINK_LIBRARIES pybind11::python_link_helper) +endif() + +# WITHOUT_SOABI and WITH_SOABI will disable the custom extension handling used by pybind11. +# WITH_SOABI is passed on to python_add_library. +function(pybind11_add_module target_name) + cmake_parse_arguments(PARSE_ARGV 1 ARG + "STATIC;SHARED;MODULE;THIN_LTO;OPT_SIZE;NO_EXTRAS;WITHOUT_SOABI" "" "") + + if(ARG_ADD_LIBRARY_STATIC) + set(type STATIC) + elseif(ARG_ADD_LIBRARY_SHARED) + set(type SHARED) + else() + set(type MODULE) + endif() + + if("${_Python}" STREQUAL "Python") + python_add_library(${target_name} ${type} ${ARG_UNPARSED_ARGUMENTS}) + elseif("${_Python}" STREQUAL "Python3") + python3_add_library(${target_name} ${type} ${ARG_UNPARSED_ARGUMENTS}) + elseif("${_Python}" STREQUAL "Python2") + python2_add_library(${target_name} ${type} ${ARG_UNPARSED_ARGUMENTS}) + else() + message(FATAL_ERROR "Cannot detect FindPython version: ${_Python}") + endif() + + target_link_libraries(${target_name} PRIVATE pybind11::headers) + + if(type STREQUAL "MODULE") + target_link_libraries(${target_name} PRIVATE pybind11::module) + else() + target_link_libraries(${target_name} PRIVATE pybind11::embed) + endif() + + if(MSVC) + target_link_libraries(${target_name} PRIVATE pybind11::windows_extras) + endif() + + if(DEFINED ${_Python}_VERSION AND ${_Python}_VERSION VERSION_LESS 3) + target_link_libraries(${target_name} PRIVATE pybind11::python2_no_register) + endif() + + set_target_properties(${target_name} PROPERTIES CXX_VISIBILITY_PRESET "hidden" + CUDA_VISIBILITY_PRESET "hidden") + + # If we don't pass a WITH_SOABI or WITHOUT_SOABI, use our own default handling of extensions + if("${type}" STREQUAL "MODULE" AND (NOT ARG_WITHOUT_SOABI OR NOT "WITH_SOABI" IN_LIST + ARG_UNPARSED_ARGUMENTS)) + pybind11_extension(${target_name}) + endif() + + if(ARG_NO_EXTRAS) + return() + endif() + + if(NOT DEFINED CMAKE_INTERPROCEDURAL_OPTIMIZATION) + if(ARG_THIN_LTO) + target_link_libraries(${target_name} PRIVATE pybind11::thin_lto) + else() + target_link_libraries(${target_name} PRIVATE pybind11::lto) + endif() + endif() + + if(NOT MSVC AND NOT ${CMAKE_BUILD_TYPE} MATCHES Debug|RelWithDebInfo) + # Strip unnecessary sections of the binary on Linux/macOS + pybind11_strip(${target_name}) + endif() + + if(MSVC) + target_link_libraries(${target_name} PRIVATE pybind11::windows_extras) + endif() + + if(ARG_OPT_SIZE) + target_link_libraries(${target_name} PRIVATE pybind11::opt_size) + endif() +endfunction() + +function(pybind11_extension name) + # The extension is precomputed + set_target_properties(${name} PROPERTIES PREFIX "" SUFFIX "${PYTHON_MODULE_EXTENSION}") + +endfunction() |