mirror of
https://github.com/pybind/pybind11.git
synced 2024-11-30 00:47:12 +00:00
5891867ee4
* cmake: split extension
Into suffix and debug postfix. Pybind11 is currently treating both as
suffix, which is problematic when something else defines the
DEBUG_POSTFIX because they will be concatenated.
pybind11_extension sets SUFFIX to _d.something and if DEBUG_POSTFIX is
set to _d.
_d + _d.something = _d_d.something
The issue has been reported at:
https://github.com/pybind/pybind11/issues/4699
* style: pre-commit fixes
* fix(cmake): support postfix for old FindPythonInterp mode too
Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
---------
Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com>
240 lines
8.4 KiB
CMake
240 lines
8.4 KiB
CMake
# tools/pybind11Tools.cmake -- Build system for the pybind11 modules
|
|
#
|
|
# Copyright (c) 2020 Wenzel Jakob <wenzel.jakob@epfl.ch>
|
|
#
|
|
# All rights reserved. Use of this source code is governed by a
|
|
# BSD-style license that can be found in the LICENSE file.
|
|
|
|
# include_guard(global) (pre-CMake 3.10)
|
|
if(TARGET pybind11::python_headers)
|
|
return()
|
|
endif()
|
|
|
|
# Built-in in CMake 3.5+
|
|
include(CMakeParseArguments)
|
|
|
|
if(pybind11_FIND_QUIETLY)
|
|
set(_pybind11_quiet QUIET)
|
|
else()
|
|
set(_pybind11_quiet "")
|
|
endif()
|
|
|
|
# If this is the first run, PYTHON_VERSION can stand in for PYBIND11_PYTHON_VERSION
|
|
if(NOT DEFINED PYBIND11_PYTHON_VERSION AND DEFINED PYTHON_VERSION)
|
|
message(WARNING "Set PYBIND11_PYTHON_VERSION to search for a specific version, not "
|
|
"PYTHON_VERSION (which is an output). Assuming that is what you "
|
|
"meant to do and continuing anyway.")
|
|
set(PYBIND11_PYTHON_VERSION
|
|
"${PYTHON_VERSION}"
|
|
CACHE STRING "Python version to use for compiling modules")
|
|
unset(PYTHON_VERSION)
|
|
unset(PYTHON_VERSION CACHE)
|
|
elseif(DEFINED PYBIND11_PYTHON_VERSION)
|
|
# If this is set as a normal variable, promote it
|
|
set(PYBIND11_PYTHON_VERSION
|
|
"${PYBIND11_PYTHON_VERSION}"
|
|
CACHE STRING "Python version to use for compiling modules")
|
|
else()
|
|
# Make an empty cache variable.
|
|
set(PYBIND11_PYTHON_VERSION
|
|
""
|
|
CACHE STRING "Python version to use for compiling modules")
|
|
endif()
|
|
|
|
# A user can set versions manually too
|
|
set(Python_ADDITIONAL_VERSIONS
|
|
"3.11;3.10;3.9;3.8;3.7;3.6"
|
|
CACHE INTERNAL "")
|
|
|
|
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}")
|
|
find_package(PythonLibsNew ${PYBIND11_PYTHON_VERSION} MODULE REQUIRED ${_pybind11_quiet})
|
|
list(REMOVE_AT CMAKE_MODULE_PATH -1)
|
|
|
|
# Makes a normal variable a cached variable
|
|
macro(_PYBIND11_PROMOTE_TO_CACHE NAME)
|
|
set(_tmp_ptc "${${NAME}}")
|
|
# CMake 3.21 complains if a cached variable is shadowed by a normal one
|
|
unset(${NAME})
|
|
set(${NAME}
|
|
"${_tmp_ptc}"
|
|
CACHE INTERNAL "")
|
|
endmacro()
|
|
|
|
# Cache variables so pybind11_add_module can be used in parent projects
|
|
_pybind11_promote_to_cache(PYTHON_INCLUDE_DIRS)
|
|
_pybind11_promote_to_cache(PYTHON_LIBRARIES)
|
|
_pybind11_promote_to_cache(PYTHON_MODULE_PREFIX)
|
|
_pybind11_promote_to_cache(PYTHON_MODULE_EXTENSION)
|
|
_pybind11_promote_to_cache(PYTHON_MODULE_DEBUG_POSTFIX)
|
|
_pybind11_promote_to_cache(PYTHON_VERSION_MAJOR)
|
|
_pybind11_promote_to_cache(PYTHON_VERSION_MINOR)
|
|
_pybind11_promote_to_cache(PYTHON_VERSION)
|
|
_pybind11_promote_to_cache(PYTHON_IS_DEBUG)
|
|
|
|
if(PYBIND11_MASTER_PROJECT)
|
|
if(PYTHON_MODULE_EXTENSION MATCHES "pypy")
|
|
if(NOT DEFINED PYPY_VERSION)
|
|
execute_process(
|
|
COMMAND ${PYTHON_EXECUTABLE} -c
|
|
[=[import sys; sys.stdout.write(".".join(map(str, sys.pypy_version_info[:3])))]=]
|
|
OUTPUT_VARIABLE pypy_version)
|
|
set(PYPY_VERSION
|
|
${pypy_version}
|
|
CACHE INTERNAL "")
|
|
endif()
|
|
message(STATUS "PYPY ${PYPY_VERSION} (Py ${PYTHON_VERSION})")
|
|
else()
|
|
message(STATUS "PYTHON ${PYTHON_VERSION}")
|
|
endif()
|
|
endif()
|
|
|
|
# Only add Python for build - must be added during the import for config since
|
|
# it has to be re-discovered.
|
|
#
|
|
# This needs to be an target to it is included after the local pybind11
|
|
# directory, just in case there are multiple versions of pybind11, we want the
|
|
# one we expect.
|
|
add_library(pybind11::python_headers INTERFACE IMPORTED)
|
|
set_property(TARGET pybind11::python_headers PROPERTY INTERFACE_INCLUDE_DIRECTORIES
|
|
"$<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}" "${PYTHON_INCLUDE_DIRS}"
|
|
CACHE INTERNAL "Directories where pybind11 and possibly Python headers are located")
|
|
|
|
# Python debug libraries expose slightly different objects before 3.8
|
|
# https://docs.python.org/3.6/c-api/intro.html#debugging-builds
|
|
# https://stackoverflow.com/questions/39161202/how-to-work-around-missing-pymodule-create2-in-amd64-win-python35-d-lib
|
|
if(PYTHON_IS_DEBUG)
|
|
set_property(
|
|
TARGET pybind11::pybind11
|
|
APPEND
|
|
PROPERTY INTERFACE_COMPILE_DEFINITIONS Py_DEBUG)
|
|
endif()
|
|
|
|
# The <3.11 code here does not support release/debug builds at the same time, like on vcpkg
|
|
if(CMAKE_VERSION VERSION_LESS 3.11)
|
|
set_property(
|
|
TARGET pybind11::module
|
|
APPEND
|
|
PROPERTY
|
|
INTERFACE_LINK_LIBRARIES
|
|
pybind11::python_link_helper
|
|
"$<$<OR:$<PLATFORM_ID:Windows>,$<PLATFORM_ID:Cygwin>>:$<BUILD_INTERFACE:${PYTHON_LIBRARIES}>>"
|
|
)
|
|
|
|
set_property(
|
|
TARGET pybind11::embed
|
|
APPEND
|
|
PROPERTY INTERFACE_LINK_LIBRARIES pybind11::pybind11 $<BUILD_INTERFACE:${PYTHON_LIBRARIES}>)
|
|
else()
|
|
# The IMPORTED INTERFACE library here is to ensure that "debug" and "release" get processed outside
|
|
# of a generator expression - https://gitlab.kitware.com/cmake/cmake/-/issues/18424, as they are
|
|
# target_link_library keywords rather than real libraries.
|
|
add_library(pybind11::_ClassicPythonLibraries IMPORTED INTERFACE)
|
|
target_link_libraries(pybind11::_ClassicPythonLibraries INTERFACE ${PYTHON_LIBRARIES})
|
|
target_link_libraries(
|
|
pybind11::module
|
|
INTERFACE
|
|
pybind11::python_link_helper
|
|
"$<$<OR:$<PLATFORM_ID:Windows>,$<PLATFORM_ID:Cygwin>>:pybind11::_ClassicPythonLibraries>")
|
|
|
|
target_link_libraries(pybind11::embed INTERFACE pybind11::pybind11
|
|
pybind11::_ClassicPythonLibraries)
|
|
endif()
|
|
|
|
function(pybind11_extension name)
|
|
# The prefix and extension are provided by FindPythonLibsNew.cmake
|
|
set_target_properties(
|
|
${name}
|
|
PROPERTIES PREFIX "${PYTHON_MODULE_PREFIX}"
|
|
DEBUG_POSTFIX "${PYTHON_MODULE_DEBUG_POSTFIX}"
|
|
SUFFIX "${PYTHON_MODULE_EXTENSION}")
|
|
endfunction()
|
|
|
|
# Build a Python extension module:
|
|
# pybind11_add_module(<name> [MODULE | SHARED] [EXCLUDE_FROM_ALL]
|
|
# [NO_EXTRAS] [THIN_LTO] [OPT_SIZE] source1 [source2 ...])
|
|
#
|
|
function(pybind11_add_module target_name)
|
|
set(options "MODULE;SHARED;EXCLUDE_FROM_ALL;NO_EXTRAS;SYSTEM;THIN_LTO;OPT_SIZE")
|
|
cmake_parse_arguments(ARG "${options}" "" "" ${ARGN})
|
|
|
|
if(ARG_MODULE AND ARG_SHARED)
|
|
message(FATAL_ERROR "Can't be both MODULE and SHARED")
|
|
elseif(ARG_SHARED)
|
|
set(lib_type SHARED)
|
|
else()
|
|
set(lib_type MODULE)
|
|
endif()
|
|
|
|
if(ARG_EXCLUDE_FROM_ALL)
|
|
set(exclude_from_all EXCLUDE_FROM_ALL)
|
|
else()
|
|
set(exclude_from_all "")
|
|
endif()
|
|
|
|
add_library(${target_name} ${lib_type} ${exclude_from_all} ${ARG_UNPARSED_ARGUMENTS})
|
|
|
|
target_link_libraries(${target_name} PRIVATE pybind11::module)
|
|
|
|
if(ARG_SYSTEM)
|
|
message(
|
|
STATUS
|
|
"Warning: this does not have an effect - use NO_SYSTEM_FROM_IMPORTED if using imported targets"
|
|
)
|
|
endif()
|
|
|
|
pybind11_extension(${target_name})
|
|
|
|
# -fvisibility=hidden is required to allow multiple modules compiled against
|
|
# different pybind versions to work properly, and for some features (e.g.
|
|
# py::module_local). We force it on everything inside the `pybind11`
|
|
# namespace; also turning it on for a pybind module compilation here avoids
|
|
# potential warnings or issues from having mixed hidden/non-hidden types.
|
|
if(NOT DEFINED CMAKE_CXX_VISIBILITY_PRESET)
|
|
set_target_properties(${target_name} PROPERTIES CXX_VISIBILITY_PRESET "hidden")
|
|
endif()
|
|
|
|
if(NOT DEFINED CMAKE_CUDA_VISIBILITY_PRESET)
|
|
set_target_properties(${target_name} PROPERTIES CUDA_VISIBILITY_PRESET "hidden")
|
|
endif()
|
|
|
|
if(ARG_NO_EXTRAS)
|
|
return()
|
|
endif()
|
|
|
|
if(NOT DEFINED CMAKE_INTERPROCEDURAL_OPTIMIZATION)
|
|
if(ARG_THIN_LTO)
|
|
target_link_libraries(${target_name} PRIVATE pybind11::thin_lto)
|
|
else()
|
|
target_link_libraries(${target_name} PRIVATE pybind11::lto)
|
|
endif()
|
|
endif()
|
|
|
|
if(DEFINED CMAKE_BUILD_TYPE) # see https://github.com/pybind/pybind11/issues/4454
|
|
# 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 "${uppercase_CMAKE_BUILD_TYPE}" MATCHES DEBUG|RELWITHDEBINFO)
|
|
pybind11_strip(${target_name})
|
|
endif()
|
|
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()
|
|
|
|
# Provide general way to call common Python commands in "common" file.
|
|
set(_Python
|
|
PYTHON
|
|
CACHE INTERNAL "" FORCE)
|