mirror of
https://github.com/pybind/pybind11.git
synced 2024-11-30 00:47:12 +00:00
7d3b05715b
* Rollback of PR #3030 (Working around Centos 8 failure). * Adding `-DCMAKE_BUILD_TYPE=Release` * Improving existing workaround (undoing the originally intended rollback). * Fixing minor documentation bug.
234 lines
6.9 KiB
CMake
234 lines
6.9 KiB
CMake
#[=============================================================================[.rst:
|
|
|
|
pybind11Config.cmake
|
|
####################
|
|
|
|
Exported variables
|
|
==================
|
|
|
|
This module sets the following variables in your project:
|
|
|
|
``pybind11_FOUND``
|
|
true if pybind11 and all required components found on the system
|
|
``pybind11_VERSION``
|
|
pybind11 version in format Major.Minor.Release
|
|
``pybind11_VERSION_TYPE``
|
|
pybind11 version type (dev, release)
|
|
``pybind11_INCLUDE_DIRS``
|
|
Directories where pybind11 and python headers are located.
|
|
``pybind11_INCLUDE_DIR``
|
|
Directory where pybind11 headers are located.
|
|
``pybind11_DEFINITIONS``
|
|
Definitions necessary to use pybind11, namely USING_pybind11.
|
|
``pybind11_LIBRARIES``
|
|
Compile flags and python libraries (as needed) to link against.
|
|
``pybind11_LIBRARY``
|
|
Empty.
|
|
|
|
Available components: None
|
|
|
|
|
|
Exported targets
|
|
================
|
|
|
|
If pybind11 is found, this module defines the following ``IMPORTED``
|
|
interface library targets:
|
|
|
|
``pybind11::module``
|
|
for extension modules.
|
|
``pybind11::embed``
|
|
for embedding the Python interpreter.
|
|
|
|
Python headers, libraries (as needed by platform), and the C++ standard
|
|
are attached to the target.
|
|
|
|
Advanced targets are also supplied - these are primary for users building
|
|
complex applications, and they are available in all modes:
|
|
|
|
``pybind11::headers``
|
|
Just the pybind11 headers and minimum compile requirements.
|
|
``pybind11::pybind11``
|
|
Python headers too.
|
|
``pybind11::python_link_helper``
|
|
Just the "linking" part of ``pybind11:module``, for CMake < 3.15.
|
|
``pybind11::python2_no_register``
|
|
Quiets the warning/error when mixing C++14+ and Python 2, also included in ``pybind11::module``.
|
|
``pybind11::thin_lto``
|
|
An alternative to ``INTERPROCEDURAL_OPTIMIZATION``.
|
|
``pybind11::lto``
|
|
An alternative to ``INTERPROCEDURAL_OPTIMIZATION`` (also avoids thin LTO on clang).
|
|
``pybind11::windows_extras``
|
|
Adds bigobj and mp for MSVC.
|
|
|
|
Modes
|
|
=====
|
|
|
|
There are two modes provided; classic, which is built on the old Python
|
|
discovery packages in CMake, or the new FindPython mode, which uses FindPython
|
|
from 3.12+ forward (3.15+ _highly_ recommended).
|
|
|
|
New FindPython mode
|
|
^^^^^^^^^^^^^^^^^^^
|
|
|
|
To activate this mode, either call ``find_package(Python COMPONENTS Interpreter Development)``
|
|
before finding this package, or set the ``PYBIND11_FINDPYTHON`` variable to ON. In this mode,
|
|
you can either use the basic targets, or use the FindPython tools:
|
|
|
|
.. code-block:: cmake
|
|
|
|
find_package(Python COMPONENTS Interpreter Development)
|
|
find_package(pybind11 CONFIG)
|
|
|
|
# pybind11 method:
|
|
pybind11_add_module(MyModule1 src1.cpp)
|
|
|
|
# Python method:
|
|
Python_add_library(MyModule2 src2.cpp)
|
|
target_link_libraries(MyModule2 pybind11::headers)
|
|
set_target_properties(MyModule2 PROPERTIES
|
|
INTERPROCEDURAL_OPTIMIZATION ON
|
|
CXX_VISIBILITY_PRESET ON
|
|
VISIBLITY_INLINES_HIDDEN ON)
|
|
|
|
If you build targets yourself, you may be interested in stripping the output
|
|
for reduced size; this is the one other feature that the helper function gives you.
|
|
|
|
Classic mode
|
|
^^^^^^^^^^^^
|
|
|
|
Set PythonLibsNew variables to influence python detection and
|
|
CMAKE_CXX_STANDARD to influence standard setting.
|
|
|
|
.. code-block:: cmake
|
|
|
|
find_package(pybind11 CONFIG REQUIRED)
|
|
|
|
# Create an extension module
|
|
add_library(mylib MODULE main.cpp)
|
|
target_link_libraries(mylib PUBLIC pybind11::module)
|
|
|
|
# Or embed the Python interpreter into an executable
|
|
add_executable(myexe main.cpp)
|
|
target_link_libraries(myexe PUBLIC pybind11::embed)
|
|
|
|
|
|
Hints
|
|
=====
|
|
|
|
The following variables can be set to guide the search for this package:
|
|
|
|
``pybind11_DIR``
|
|
CMake variable, set to directory containing this Config file.
|
|
``CMAKE_PREFIX_PATH``
|
|
CMake variable, set to root directory of this package.
|
|
``PATH``
|
|
Environment variable, set to bin directory of this package.
|
|
``CMAKE_DISABLE_FIND_PACKAGE_pybind11``
|
|
CMake variable, disables ``find_package(pybind11)`` when not ``REQUIRED``,
|
|
perhaps to force internal build.
|
|
|
|
Commands
|
|
========
|
|
|
|
pybind11_add_module
|
|
^^^^^^^^^^^^^^^^^^^
|
|
|
|
This module defines the following commands to assist with creating Python modules:
|
|
|
|
.. code-block:: cmake
|
|
|
|
pybind11_add_module(<target>
|
|
[STATIC|SHARED|MODULE]
|
|
[THIN_LTO] [OPT_SIZE] [NO_EXTRAS] [WITHOUT_SOABI]
|
|
<files>...
|
|
)
|
|
|
|
Add a module and setup all helpers. You can select the type of the library; the
|
|
default is ``MODULE``. There are several options:
|
|
|
|
``OPT_SIZE``
|
|
Optimize for size, even if the ``CMAKE_BUILD_TYPE`` is not ``MinSizeRel``.
|
|
``THIN_LTO``
|
|
Use thin TLO instead of regular if there's a choice (pybind11's selection
|
|
is disabled if ``CMAKE_INTERPROCEDURAL_OPTIMIZATIONS`` is set).
|
|
``WITHOUT_SOABI``
|
|
Disable the SOABI component (``PYBIND11_NEWPYTHON`` mode only).
|
|
``NO_EXTRAS``
|
|
Disable all extras, exit immediately after making the module.
|
|
|
|
pybind11_strip
|
|
^^^^^^^^^^^^^^
|
|
|
|
.. code-block:: cmake
|
|
|
|
pybind11_strip(<target>)
|
|
|
|
Strip a target after building it (linux/macOS), called by ``pybind11_add_module``.
|
|
|
|
pybind11_extension
|
|
^^^^^^^^^^^^^^^^^^
|
|
|
|
.. code-block:: cmake
|
|
|
|
pybind11_extension(<target>)
|
|
|
|
Sets the Python extension name correctly for Python on your platform, called by
|
|
``pybind11_add_module``.
|
|
|
|
pybind11_find_import(module)
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
.. code-block:: cmake
|
|
|
|
pybind11_find_import(<module> [VERSION <number>] [REQUIRED] [QUIET])
|
|
|
|
See if a module is installed. Use the registered name (the one on PyPI). You
|
|
can specify a ``VERSION``, and you can specify ``REQUIRED`` or ``QUIET``. Only available if
|
|
``NOPYTHON`` mode is not active. Sets ``module_VERSION`` and ``module_FOUND``. Caches the
|
|
result once a valid install is found.
|
|
|
|
Suggested usage
|
|
===============
|
|
|
|
Using ``find_package`` with version info is not recommended except for release versions.
|
|
|
|
.. code-block:: cmake
|
|
|
|
find_package(pybind11 CONFIG)
|
|
find_package(pybind11 2.0 EXACT CONFIG REQUIRED)
|
|
|
|
#]=============================================================================]
|
|
@PACKAGE_INIT@
|
|
|
|
# Location of pybind11/pybind11.h
|
|
# This will be relative unless explicitly set as absolute
|
|
set(pybind11_INCLUDE_DIR "@pybind11_INCLUDEDIR@")
|
|
|
|
set(pybind11_LIBRARY "")
|
|
set(pybind11_DEFINITIONS USING_pybind11)
|
|
set(pybind11_VERSION_TYPE "@pybind11_VERSION_TYPE@")
|
|
|
|
check_required_components(pybind11)
|
|
|
|
if(TARGET pybind11::python_link_helper)
|
|
# This has already been setup elsewhere, such as with a previous call or
|
|
# add_subdirectory
|
|
return()
|
|
endif()
|
|
|
|
include("${CMAKE_CURRENT_LIST_DIR}/pybind11Targets.cmake")
|
|
|
|
# Easier to use / remember
|
|
add_library(pybind11::headers IMPORTED INTERFACE)
|
|
set_target_properties(pybind11::headers PROPERTIES INTERFACE_LINK_LIBRARIES
|
|
pybind11::pybind11_headers)
|
|
|
|
include("${CMAKE_CURRENT_LIST_DIR}/pybind11Common.cmake")
|
|
|
|
if(NOT pybind11_FIND_QUIETLY)
|
|
message(
|
|
STATUS
|
|
"Found pybind11: ${pybind11_INCLUDE_DIR} (found version \"${pybind11_VERSION}\" ${pybind11_VERSION_TYPE})"
|
|
)
|
|
endif()
|