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190 lines
6.1 KiB
CMake
190 lines
6.1 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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FindPython2
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-----------
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Find Python 2 interpreter, compiler and development environment (include
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directories and libraries).
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Three components are supported:
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* ``Interpreter``: search for Python 2 interpreter
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* ``Compiler``: search for Python 2 compiler. Only offered by IronPython.
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* ``Development``: search for development artifacts (include directories and
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libraries)
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* ``NumPy``: search for NumPy include directories.
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If no ``COMPONENTS`` is specified, ``Interpreter`` is assumed.
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To ensure consistent versions between components ``Interpreter``, ``Compiler``,
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``Development`` and ``NumPy``, specify all components at the same time::
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find_package (Python2 COMPONENTS Interpreter Development)
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This module looks only for version 2 of Python. This module can be used
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concurrently with :module:`FindPython3` module to use both Python versions.
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The :module:`FindPython` module can be used if Python version does not matter
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for you.
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.. note::
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If components ``Interpreter`` and ``Development`` are both specified, this
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module search only for interpreter with same platform architecture as the one
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defined by ``CMake`` configuration. This contraint does not apply if only
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``Interpreter`` component is specified.
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Imported Targets
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^^^^^^^^^^^^^^^^
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This module defines the following :ref:`Imported Targets <Imported Targets>`
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(when :prop_gbl:`CMAKE_ROLE` is ``PROJECT``):
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``Python2::Interpreter``
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Python 2 interpreter. Target defined if component ``Interpreter`` is found.
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``Python2::Compiler``
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Python 2 compiler. Target defined if component ``Compiler`` is found.
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``Python2::Python``
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Python 2 library. Target defined if component ``Development`` is found.
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``Python2::NumPy``
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NumPy library for Python 2. Target defined if component ``NumPy`` is found.
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Result Variables
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^^^^^^^^^^^^^^^^
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This module will set the following variables in your project
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(see :ref:`Standard Variable Names <CMake Developer Standard Variable Names>`):
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``Python2_FOUND``
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System has the Python 2 requested components.
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``Python2_Interpreter_FOUND``
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System has the Python 2 interpreter.
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``Python2_EXECUTABLE``
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Path to the Python 2 interpreter.
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``Python2_INTERPRETER_ID``
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A short string unique to the interpreter. Possible values include:
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* Python
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* ActivePython
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* Anaconda
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* Canopy
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* IronPython
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``Python2_STDLIB``
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Standard platform independent installation directory.
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Information returned by
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``distutils.sysconfig.get_python_lib(plat_specific=False,standard_lib=True)``.
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``Python2_STDARCH``
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Standard platform dependent installation directory.
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Information returned by
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``distutils.sysconfig.get_python_lib(plat_specific=True,standard_lib=True)``.
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``Python2_SITELIB``
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Third-party platform independent installation directory.
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Information returned by
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``distutils.sysconfig.get_python_lib(plat_specific=False,standard_lib=False)``.
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``Python2_SITEARCH``
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Third-party platform dependent installation directory.
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Information returned by
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``distutils.sysconfig.get_python_lib(plat_specific=True,standard_lib=False)``.
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``Python2_Compiler_FOUND``
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System has the Python 2 compiler.
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``Python2_COMPILER``
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Path to the Python 2 compiler. Only offered by IronPython.
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``Python2_COMPILER_ID``
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A short string unique to the compiler. Possible values include:
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* IronPython
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``Python2_Development_FOUND``
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System has the Python 2 development artifacts.
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``Python2_INCLUDE_DIRS``
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The Python 2 include directories.
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``Python2_LIBRARIES``
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The Python 2 libraries.
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``Python2_LIBRARY_DIRS``
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The Python 2 library directories.
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``Python2_RUNTIME_LIBRARY_DIRS``
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The Python 2 runtime library directories.
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``Python2_VERSION``
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Python 2 version.
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``Python2_VERSION_MAJOR``
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Python 2 major version.
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``Python2_VERSION_MINOR``
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Python 2 minor version.
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``Python2_VERSION_PATCH``
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Python 2 patch version.
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``Python2_NumPy_FOUND``
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System has the NumPy.
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``Python2_NumPy_INCLUDE_DIRS``
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The NumPy include directries.
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``Python2_NumPy_VERSION``
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The NumPy version.
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Hints
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^^^^^
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``Python2_ROOT_DIR``
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Define the root directory of a Python 2 installation.
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``Python2_USE_STATIC_LIBS``
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* If not defined, search for shared libraries and static libraries in that
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order.
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* If set to TRUE, search **only** for static libraries.
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* If set to FALSE, search **only** for shared libraries.
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``Python2_FIND_REGISTRY``
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On Windows the ``Python2_FIND_REGISTRY`` variable determine the order
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of preference between registry and environment variables.
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the ``Python2_FIND_REGISTRY`` variable can be set to empty or one of the
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following:
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* ``FIRST``: Try to use registry before environment variables.
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This is the default.
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* ``LAST``: Try to use registry after environment variables.
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* ``NEVER``: Never try to use registry.
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``CMAKE_FIND_FRAMEWORK``
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On macOS the :variable:`CMAKE_FIND_FRAMEWORK` variable determine the order of
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preference between Apple-style and unix-style package components.
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.. note::
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Value ``ONLY`` is not supported so ``FIRST`` will be used instead.
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.. note::
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If a Python virtual environment is configured, set variable
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``Python_FIND_REGISTRY`` (Windows) or ``CMAKE_FIND_FRAMEWORK`` (macOS) with
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value ``LAST`` or ``NEVER`` to select it preferably.
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Commands
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^^^^^^^^
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This module defines the command ``Python2_add_library`` (when
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:prop_gbl:`CMAKE_ROLE` is ``PROJECT``), which has the same semantics as
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:command:`add_library`, but takes care of Python module naming rules
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(only applied if library is of type ``MODULE``), and adds a dependency to target
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``Python2::Python``::
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Python2_add_library (my_module MODULE src1.cpp)
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If library type is not specified, ``MODULE`` is assumed.
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#]=======================================================================]
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set (_PYTHON_PREFIX Python2)
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set (_Python2_REQUIRED_VERSION_MAJOR 2)
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include (${CMAKE_CURRENT_LIST_DIR}/FindPython/Support.cmake)
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if (COMMAND __Python2_add_library)
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macro (Python2_add_library)
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__Python2_add_library (Python2 ${ARGV})
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endmacro()
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endif()
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unset (_PYTHON_PREFIX)
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