mirror of
https://github.com/pybind/pybind11.git
synced 2024-11-27 07:32:02 +00:00
88b019a8a5
* fix pybind11Tools.cmake typo causing Unknown arguments
CMake Error at pybind11/tools/pybind11Tools.cmake:217 (if):
if given arguments:
"NOT" "MSVC" "AND" "NOT" "TEST" "MATCHES" "DEBUG|RELWITHDEBINFO"
Unknown arguments specified
https://github.com/pybind/pybind11/issues/4325
* Apply the same fix in tools/pybind11NewTools.cmake
Co-authored-by: Ralf W. Grosse-Kunstleve <rwgk@google.com>
257 lines
8.7 KiB
CMake
257 lines
8.7 KiB
CMake
# 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.
|
|
|
|
if(CMAKE_VERSION VERSION_LESS 3.12)
|
|
message(FATAL_ERROR "You cannot use the new FindPython module with CMake < 3.12")
|
|
endif()
|
|
|
|
include_guard(GLOBAL)
|
|
|
|
get_property(
|
|
is_config
|
|
TARGET pybind11::headers
|
|
PROPERTY IMPORTED)
|
|
|
|
if(pybind11_FIND_QUIETLY)
|
|
set(_pybind11_quiet QUIET)
|
|
else()
|
|
set(_pybind11_quiet "")
|
|
endif()
|
|
|
|
if(NOT Python_FOUND AND NOT Python3_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 3.6 REQUIRED COMPONENTS Interpreter Development ${_pybind11_quiet})
|
|
|
|
# If we are in submodule mode, export the Python targets to global targets.
|
|
# If this behavior is not desired, FindPython _before_ pybind11.
|
|
if(NOT is_config)
|
|
set_property(TARGET Python::Python PROPERTY IMPORTED_GLOBAL TRUE)
|
|
set_property(TARGET Python::Interpreter PROPERTY IMPORTED_GLOBAL TRUE)
|
|
if(TARGET Python::Module)
|
|
set_property(TARGET Python::Module PROPERTY IMPORTED_GLOBAL TRUE)
|
|
endif()
|
|
endif()
|
|
endif()
|
|
|
|
if(Python_FOUND)
|
|
set(_Python
|
|
Python
|
|
CACHE INTERNAL "" FORCE)
|
|
elseif(Python3_FOUND)
|
|
set(_Python
|
|
Python3
|
|
CACHE INTERNAL "" FORCE)
|
|
endif()
|
|
|
|
if(PYBIND11_MASTER_PROJECT)
|
|
if(${_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 ${_Python}_EXECUTABLE STREQUAL PYBIND11_PYTHON_EXECUTABLE_LAST)
|
|
# Detect changes to the Python version/binary in subsequent CMake runs, and refresh config if needed
|
|
unset(PYTHON_IS_DEBUG CACHE)
|
|
unset(PYTHON_MODULE_EXTENSION CACHE)
|
|
set(PYBIND11_PYTHON_EXECUTABLE_LAST
|
|
"${${_Python}_EXECUTABLE}"
|
|
CACHE INTERNAL "Python executable during the last CMake run")
|
|
endif()
|
|
|
|
if(NOT DEFINED PYTHON_IS_DEBUG)
|
|
# Debug check - see https://stackoverflow.com/questions/646518/python-how-to-detect-debug-Interpreter
|
|
execute_process(
|
|
COMMAND "${${_Python}_EXECUTABLE}" "-c"
|
|
"import sys; sys.exit(hasattr(sys, 'gettotalrefcount'))"
|
|
RESULT_VARIABLE _PYTHON_IS_DEBUG)
|
|
set(PYTHON_IS_DEBUG
|
|
"${_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"
|
|
"import sys, importlib; s = importlib.import_module('distutils.sysconfig' if sys.version_info < (3, 10) else 'sysconfig'); 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 Python can change - do nothing in that case.
|
|
|
|
if(DEFINED ${_Python}_INCLUDE_DIRS)
|
|
# Only add Python for build - must be added during the import for config
|
|
# since it has to be re-discovered.
|
|
#
|
|
# This needs to be a target to be included after the local pybind11
|
|
# directory, just in case there there is an installed pybind11 sitting
|
|
# next to Python's includes. It also ensures Python is a SYSTEM library.
|
|
add_library(pybind11::python_headers INTERFACE IMPORTED)
|
|
set_property(
|
|
TARGET pybind11::python_headers PROPERTY INTERFACE_INCLUDE_DIRECTORIES
|
|
"$<BUILD_INTERFACE:${${_Python}_INCLUDE_DIRS}>")
|
|
set_property(
|
|
TARGET pybind11::pybind11
|
|
APPEND
|
|
PROPERTY INTERFACE_LINK_LIBRARIES pybind11::python_headers)
|
|
set(pybind11_INCLUDE_DIRS
|
|
"${pybind11_INCLUDE_DIR}" "${${_Python}_INCLUDE_DIRS}"
|
|
CACHE INTERNAL "Directories where pybind11 and possibly Python headers are located")
|
|
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 ${_Python}::Module)
|
|
else()
|
|
set_property(
|
|
TARGET pybind11::module
|
|
APPEND
|
|
PROPERTY INTERFACE_LINK_LIBRARIES pybind11::python_link_helper)
|
|
endif()
|
|
|
|
# WITHOUT_SOABI and WITH_SOABI will disable the custom extension handling used by pybind11.
|
|
# WITH_SOABI is passed on to python_add_library.
|
|
function(pybind11_add_module target_name)
|
|
cmake_parse_arguments(PARSE_ARGV 1 ARG
|
|
"STATIC;SHARED;MODULE;THIN_LTO;OPT_SIZE;NO_EXTRAS;WITHOUT_SOABI" "" "")
|
|
|
|
if(ARG_STATIC)
|
|
set(lib_type STATIC)
|
|
elseif(ARG_SHARED)
|
|
set(lib_type SHARED)
|
|
else()
|
|
set(lib_type MODULE)
|
|
endif()
|
|
|
|
if("${_Python}" STREQUAL "Python")
|
|
python_add_library(${target_name} ${lib_type} ${ARG_UNPARSED_ARGUMENTS})
|
|
elseif("${_Python}" STREQUAL "Python3")
|
|
python3_add_library(${target_name} ${lib_type} ${ARG_UNPARSED_ARGUMENTS})
|
|
else()
|
|
message(FATAL_ERROR "Cannot detect FindPython version: ${_Python}")
|
|
endif()
|
|
|
|
target_link_libraries(${target_name} PRIVATE pybind11::headers)
|
|
|
|
if(lib_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(${target_name} PRIVATE pybind11::windows_extras)
|
|
endif()
|
|
|
|
# -fvisibility=hidden is required to allow multiple modules compiled against
|
|
# different pybind versions to work properly, and for some features (e.g.
|
|
# py::module_local). We force it on everything inside the `pybind11`
|
|
# namespace; also turning it on for a pybind module compilation here avoids
|
|
# potential warnings or issues from having mixed hidden/non-hidden types.
|
|
if(NOT DEFINED CMAKE_CXX_VISIBILITY_PRESET)
|
|
set_target_properties(${target_name} PROPERTIES CXX_VISIBILITY_PRESET "hidden")
|
|
endif()
|
|
|
|
if(NOT DEFINED CMAKE_CUDA_VISIBILITY_PRESET)
|
|
set_target_properties(${target_name} PROPERTIES CUDA_VISIBILITY_PRESET "hidden")
|
|
endif()
|
|
|
|
# If we don't pass a WITH_SOABI or WITHOUT_SOABI, use our own default handling of extensions
|
|
if(NOT ARG_WITHOUT_SOABI AND NOT "WITH_SOABI" IN_LIST ARG_UNPARSED_ARGUMENTS)
|
|
pybind11_extension(${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()
|
|
|
|
# Use case-insensitive comparison to match the result of $<CONFIG:cfgs>
|
|
string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE)
|
|
if(NOT MSVC AND NOT "${uppercase_CMAKE_BUILD_TYPE}" MATCHES DEBUG|RELWITHDEBINFO)
|
|
# Strip unnecessary sections of the binary on Linux/macOS
|
|
pybind11_strip(${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()
|