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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying file Copyright.txt or
# https://cmake.org/licensing for details.
# .rst: FindPythonLibs
# --------------
#
# Find python libraries
#
# This module finds if Python is installed and determines where the include files and libraries are. It also determines
# what the name of the library is. This code sets the following variables:
#
# ::
#
# PYTHONLIBS3_FOUND - have the Python libs been found PYTHON3_LIBRARIES - path to the python library
# PYTHON3_INCLUDE_PATH - path to where Python.h is found (deprecated) PYTHON3_INCLUDE_DIRS - path to where
# Python.h is found PYTHON3_DEBUG_LIBRARIES - path to the debug library (deprecated) PYTHONLIBS3_VERSION_STRING -
# version of the Python libs found (since CMake 2.8.8)
#
# The Python3_ADDITIONAL_VERSIONS variable can be used to specify a list of version numbers that should be taken into
# account when searching for Python. You need to set this variable before calling find_package(PythonLibs).
#
# If you'd like to specify the installation of Python to use, you should modify the following cache variables:
#
# ::
#
# PYTHON3_LIBRARY - path to the python library PYTHON3_INCLUDE_DIR - path to where Python.h is found
#
# If calling both ``find_package(PythonInterp)`` and ``find_package(PythonLibs)``, call ``find_package(PythonInterp)``
# first to get the currently active Python version by default with a consistent version of PYTHON3_LIBRARIES.
# Use the executable's path as a hint
set(_Python3_LIBRARY_PATH_HINT)
if(IS_ABSOLUTE "${PYTHON3_EXECUTABLE}")
if(WIN32)
get_filename_component(_Python3_PREFIX "${PYTHON3_EXECUTABLE}" PATH)
if(_Python3_PREFIX)
set(_Python3_LIBRARY_PATH_HINT ${_Python3_PREFIX}/libs)
endif()
unset(_Python3_PREFIX)
else()
get_filename_component(_Python3_PREFIX "${PYTHON3_EXECUTABLE}" PATH)
get_filename_component(_Python3_PREFIX "${_Python3_PREFIX}" PATH)
if(_Python3_PREFIX)
set(_Python3_LIBRARY_PATH_HINT ${_Python3_PREFIX}/lib)
endif()
unset(_Python3_PREFIX)
endif()
endif()
include(CMakeFindFrameworks)
# Search for the python framework on Apple. CMAKE_FIND_FRAMEWORKS(Python3)
# Save CMAKE_FIND_FRAMEWORK
if(DEFINED CMAKE_FIND_FRAMEWORK)
set(_PythonLibs3_CMAKE_FIND_FRAMEWORK ${CMAKE_FIND_FRAMEWORK})
else()
unset(_PythonLibs3_CMAKE_FIND_FRAMEWORK)
endif()
# To avoid picking up the system Python.h pre-maturely.
set(CMAKE_FIND_FRAMEWORK LAST)
set(_PYTHON1_VERSIONS 1.6 1.5)
set(_PYTHON2_VERSIONS
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0)
set(_PYTHON3_VERSIONS
3.13
3.12
3.11
3.10
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0)
set(_PYTHON3_FIND_OTHER_VERSIONS ${_PYTHON3_VERSIONS})
# Set up the versions we know about, in the order we will search. Always add the user supplied additional versions to
# the front. If FindPythonInterp has already found the major and minor version, insert that version between the user
# supplied versions and the stock version list.
set(_Python3_VERSIONS ${Python3_ADDITIONAL_VERSIONS})
if(DEFINED PYTHON3_VERSION_MAJOR AND DEFINED PYTHON3_VERSION_MINOR)
list(APPEND _Python3_VERSIONS ${PYTHON3_VERSION_MAJOR}.${PYTHON3_VERSION_MINOR})
endif()
list(APPEND _Python3_VERSIONS ${_PYTHON3_FIND_OTHER_VERSIONS})
unset(_PYTHON3_FIND_OTHER_VERSIONS)
unset(_PYTHON1_VERSIONS)
unset(_PYTHON2_VERSIONS)
unset(_PYTHON3_VERSIONS)
foreach(_CURRENT_VERSION ${_Python3_VERSIONS})
string(REPLACE "." "" _CURRENT_VERSION_NO_DOTS ${_CURRENT_VERSION})
if(WIN32)
find_library(
PYTHON3_DEBUG_LIBRARY
NAMES python${_CURRENT_VERSION_NO_DOTS}_d python
HINTS ${_Python3_LIBRARY_PATH_HINT}
PATHS [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs/Debug
[HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs/Debug
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs
[HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs)
endif()
set(PYTHON3_FRAMEWORK_LIBRARIES)
if(Python3_FRAMEWORKS AND NOT PYTHON3_LIBRARY)
foreach(dir ${Python3_FRAMEWORKS})
list(APPEND PYTHON3_FRAMEWORK_LIBRARIES ${dir}/Versions/${_CURRENT_VERSION}/lib)
endforeach()
endif()
find_library(
PYTHON3_LIBRARY
NAMES python${_CURRENT_VERSION_NO_DOTS} python${_CURRENT_VERSION}mu python${_CURRENT_VERSION}m
python${_CURRENT_VERSION}u python${_CURRENT_VERSION}
HINTS ${_Python3_LIBRARY_PATH_HINT}
PATHS ${PYTHON3_FRAMEWORK_LIBRARIES}
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs
[HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs
# Avoid finding the .dll in the PATH. We want the .lib.
NO_SYSTEM_ENVIRONMENT_PATH)
# Look for the static library in the Python config directory
find_library(
PYTHON3_LIBRARY
NAMES python${_CURRENT_VERSION_NO_DOTS} python${_CURRENT_VERSION}
# Avoid finding the .dll in the PATH. We want the .lib.
NO_SYSTEM_ENVIRONMENT_PATH
# This is where the static library is usually located
PATH_SUFFIXES python${_CURRENT_VERSION}/config)
# Don't search for include dir until library location is known
if(PYTHON3_LIBRARY)
# Use the library's install prefix as a hint
set(_Python3_INCLUDE_PATH_HINT)
# PYTHON3_LIBRARY may contain a list because of SelectLibraryConfigurations which may have been run previously.
# If it is the case, the list can be: optimized;<FILEPATH_TO_RELEASE_LIBRARY>;debug;<FILEPATH_TO_DEBUG_LIBRARY>
foreach(lib ${PYTHON3_LIBRARY} ${PYTHON3_DEBUG_LIBRARY})
if(IS_ABSOLUTE "${lib}")
get_filename_component(_Python3_PREFIX "${lib}" PATH)
get_filename_component(_Python3_PREFIX "${_Python3_PREFIX}" PATH)
if(_Python3_PREFIX)
list(APPEND _Python3_INCLUDE_PATH_HINT ${_Python3_PREFIX}/include)
endif()
unset(_Python3_PREFIX)
endif()
endforeach()
# Add framework directories to the search paths
set(PYTHON3_FRAMEWORK_INCLUDES)
if(Python3_FRAMEWORKS AND NOT PYTHON3_INCLUDE_DIR)
foreach(dir ${Python3_FRAMEWORKS})
list(APPEND PYTHON3_FRAMEWORK_INCLUDES ${dir}/Versions/${_CURRENT_VERSION}/include)
endforeach()
endif()
find_path(
PYTHON3_INCLUDE_DIR
NAMES Python.h
HINTS ${_Python3_INCLUDE_PATH_HINT}
PATHS ${PYTHON3_FRAMEWORK_INCLUDES}
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/include
[HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/include
PATH_SUFFIXES python${_CURRENT_VERSION}mu python${_CURRENT_VERSION}m python${_CURRENT_VERSION}u
python${_CURRENT_VERSION})
endif()
# For backward compatibility, set PYTHON3_INCLUDE_PATH.
set(PYTHON3_INCLUDE_PATH "${PYTHON3_INCLUDE_DIR}")
if(PYTHON3_INCLUDE_DIR AND EXISTS "${PYTHON3_INCLUDE_DIR}/patchlevel.h")
file(STRINGS "${PYTHON3_INCLUDE_DIR}/patchlevel.h" python_version_str
REGEX "^#define[ \t]+PY_VERSION[ \t]+\"[^\"]+\"")
string(REGEX REPLACE "^#define[ \t]+PY_VERSION[ \t]+\"([^\"]+)\".*" "\\1" PYTHONLIBS3_VERSION_STRING
"${python_version_str}")
unset(python_version_str)
endif()
if(PYTHON3_LIBRARY AND PYTHON3_INCLUDE_DIR)
break()
endif()
endforeach()
unset(_Python3_INCLUDE_PATH_HINT)
unset(_Python3_LIBRARY_PATH_HINT)
mark_as_advanced(PYTHON3_DEBUG_LIBRARY PYTHON3_LIBRARY PYTHON3_INCLUDE_DIR)
# We use PYTHON3_INCLUDE_DIR, PYTHON3_LIBRARY and PYTHON3_DEBUG_LIBRARY for the cache entries because they are meant to
# specify the location of a single library. We now set the variables listed by the documentation for this module.
set(PYTHON3_INCLUDE_DIRS "${PYTHON3_INCLUDE_DIR}")
set(PYTHON3_DEBUG_LIBRARIES "${PYTHON3_DEBUG_LIBRARY}")
# These variables have been historically named in this module different from what SELECT_LIBRARY_CONFIGURATIONS()
# expects.
set(PYTHON3_LIBRARY_DEBUG "${PYTHON3_DEBUG_LIBRARY}")
set(PYTHON3_LIBRARY_RELEASE "${PYTHON3_LIBRARY}")
include(SelectLibraryConfigurations)
select_library_configurations(PYTHON3)
# SELECT_LIBRARY_CONFIGURATIONS() sets ${PREFIX}_FOUND if it has a library. Unset this, this prefix doesn't match the
# module prefix, they are different for historical reasons.
unset(PYTHON3_FOUND)
# Restore CMAKE_FIND_FRAMEWORK
if(DEFINED _PythonLibs3_CMAKE_FIND_FRAMEWORK)
set(CMAKE_FIND_FRAMEWORK ${_PythonLibs3_CMAKE_FIND_FRAMEWORK})
unset(_PythonLibs3_CMAKE_FIND_FRAMEWORK)
else()
unset(CMAKE_FIND_FRAMEWORK)
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(PythonLibs3 REQUIRED_VARS PYTHON3_LIBRARIES PYTHON3_INCLUDE_DIRS
VERSION_VAR PYTHONLIBS3_VERSION_STRING)
# PYTHON3_ADD_MODULE(<name> src1 src2 ... srcN) is used to build modules for python.
# PYTHON3_WRITE_MODULES_HEADER(<filename>) writes a header file you can include in your sources to initialize the static
# python modules
function(PYTHON3_ADD_MODULE _NAME)
get_property(_TARGET_SUPPORTS_SHARED_LIBS GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS)
option(PYTHON3_ENABLE_MODULE_${_NAME} "Add module ${_NAME}" TRUE)
option(PYTHON3_MODULE_${_NAME}_BUILD_SHARED "Add module ${_NAME} shared" ${_TARGET_SUPPORTS_SHARED_LIBS})
# Mark these options as advanced
mark_as_advanced(PYTHON3_ENABLE_MODULE_${_NAME} PYTHON3_MODULE_${_NAME}_BUILD_SHARED)
if(PYTHON3_ENABLE_MODULE_${_NAME})
if(PYTHON3_MODULE_${_NAME}_BUILD_SHARED)
set(PY_MODULE_TYPE MODULE)
else()
set(PY_MODULE_TYPE STATIC)
set_property(GLOBAL APPEND PROPERTY PY_STATIC_MODULES_LIST ${_NAME})
endif()
set_property(GLOBAL APPEND PROPERTY PY_MODULES_LIST ${_NAME})
add_library(${_NAME} ${PY_MODULE_TYPE} ${ARGN})
# target_link_libraries(${_NAME} ${PYTHON3_LIBRARIES})
if(PYTHON3_MODULE_${_NAME}_BUILD_SHARED)
set_target_properties(${_NAME} PROPERTIES PREFIX "${PYTHON3_MODULE_PREFIX}")
if(WIN32 AND NOT CYGWIN)
set_target_properties(${_NAME} PROPERTIES SUFFIX ".pyd")
endif()
endif()
endif()
endfunction()
function(PYTHON3_WRITE_MODULES_HEADER _filename)
get_property(PY_STATIC_MODULES_LIST GLOBAL PROPERTY PY_STATIC_MODULES_LIST)
get_filename_component(_name "${_filename}" NAME)
string(REPLACE "." "_" _name "${_name}")
string(TOUPPER ${_name} _nameUpper)
set(_filename ${CMAKE_CURRENT_BINARY_DIR}/${_filename})
set(_filenameTmp "${_filename}.in")
file(WRITE ${_filenameTmp} "/*Created by cmake, do not edit, changes will be lost*/\n")
file(
APPEND ${_filenameTmp}
"#ifndef ${_nameUpper}
#define ${_nameUpper}
#include <Python.h>
#ifdef __cplusplus
extern \"C\" {
#endif /* __cplusplus */
")
foreach(_currentModule ${PY_STATIC_MODULES_LIST})
file(APPEND ${_filenameTmp} "extern void init${PYTHON3_MODULE_PREFIX}${_currentModule}(void);\n\n")
endforeach()
file(
APPEND ${_filenameTmp}
"#ifdef __cplusplus
}
#endif /* __cplusplus */
")
foreach(_currentModule ${PY_STATIC_MODULES_LIST})
file(
APPEND ${_filenameTmp}
"int ${_name}_${_currentModule}(void) \n{\n static char name[]=\"${PYTHON3_MODULE_PREFIX}${_currentModule}\"; return PyImport_AppendInittab(name, init${PYTHON3_MODULE_PREFIX}${_currentModule});\n}\n\n"
)
endforeach()
file(APPEND ${_filenameTmp} "void ${_name}_LoadAllPythonModules(void)\n{\n")
foreach(_currentModule ${PY_STATIC_MODULES_LIST})
file(APPEND ${_filenameTmp} " ${_name}_${_currentModule}();\n")
endforeach()
file(APPEND ${_filenameTmp} "}\n\n")
file(
APPEND ${_filenameTmp}
"#ifndef EXCLUDE_LOAD_ALL_FUNCTION\nvoid CMakeLoadAllPythonModules(void)\n{\n ${_name}_LoadAllPythonModules();\n}\n#endif\n\n#endif\n"
)
# with configure_file() cmake complains that you may not use a file created using file(WRITE) as input file for
# configure_file()
execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different "${_filenameTmp}" "${_filename}" OUTPUT_QUIET
ERROR_QUIET)
endfunction()
|
