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# - 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_DIRS - path to where Python.h is found
# PYTHON3_DEBUG_LIBRARIES - path to the debug library
#
#=============================================================================
# Copyright 2001-2009 Kitware, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# * Neither the names of Kitware, Inc., the Insight Software Consortium,
# nor the names of their contributors may be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
INCLUDE(CMakeFindFrameworks)
# Is there a python3 framework? How do we search for it?
# Search for the python framework on Apple.
# CMAKE_FIND_FRAMEWORKS(Python)
FOREACH(_CURRENT_VERSION 3.5 3.4 3.3 3.2 3.1 3.0)
IF(_CURRENT_VERSION GREATER 3.1)
SET(_32FLAGS "m" "u" "mu" "dm" "du" "dmu" "")
ELSE()
SET(_32FLAGS "")
ENDIF()
FOREACH(_COMPILATION_FLAGS ${_32FLAGS})
STRING(REPLACE "." "" _CURRENT_VERSION_NO_DOTS ${_CURRENT_VERSION})
IF(WIN32)
IF(_CURRENT_VERSION GREATER 3.1)
FIND_LIBRARY(PYTHON3_DEBUG_LIBRARY
NAMES python${_CURRENT_VERSION_NO_DOTS}d${_COMPILATION_FLAGS} python
PATHS
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs/Debug
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs )
ELSE()
FIND_LIBRARY(PYTHON3_DEBUG_LIBRARY
NAMES python${_CURRENT_VERSION_NO_DOTS}${_COMPILATION_FLAGS}_d python
PATHS
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs/Debug
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs )
ENDIF()
ENDIF(WIN32)
FIND_LIBRARY(PYTHON3_LIBRARY
NAMES python${_CURRENT_VERSION_NO_DOTS}${_COMPILATION_FLAGS} python${_CURRENT_VERSION}${_COMPILATION_FLAGS}
PATHS
[HKEY_LOCAL_MACHINE\\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${_CURRENT_VERSION_NO_DOTS}${_COMPILATION_FLAGS} python${_CURRENT_VERSION}${_COMPILATION_FLAGS}
# 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${_CURRENT_VERSION}/config
)
IF(_CURRENT_VERSION GREATER 3.1)
FIND_LIBRARY(PYTHON3_DEBUG_LIBRARY
NAMES python${_CURRENT_VERSION_NO_DOTS}d${_COMPILATION_FLAGS} python${_CURRENT_VERSION}d${_COMPILATION_FLAGS}
PATHS
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_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_DEBUG_LIBRARY
NAMES python${_CURRENT_VERSION_NO_DOTS}d${_COMPILATION_FLAGS} python${_CURRENT_VERSION}d${_COMPILATION_FLAGS}
# 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
)
ENDIF()
# SET(PYTHON_FRAMEWORK_INCLUDES)
# IF(Python_FRAMEWORKS AND NOT PYTHON_INCLUDE_DIR)
# FOREACH(dir ${Python_FRAMEWORKS})
# SET(PYTHON_FRAMEWORK_INCLUDES ${PYTHON_FRAMEWORK_INCLUDES}
# ${dir}/Versions/${_CURRENT_VERSION}/include/python${_CURRENT_VERSION})
# ENDFOREACH(dir)
# ENDIF(Python_FRAMEWORKS AND NOT PYTHON_INCLUDE_DIR)
FIND_PATH(PYTHON3_INCLUDE_DIR
NAMES Python.h
PATHS
${PYTHON_FRAMEWORK_INCLUDES}
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/include
PATH_SUFFIXES
python${_CURRENT_VERSION}${_COMPILATION_FLAGS}
)
# For backward compatibility, set PYTHON_INCLUDE_PATH, but make it internal.
SET(PYTHON_INCLUDE_PATH "${PYTHON_INCLUDE_DIR}" CACHE INTERNAL
"Path to where Python.h is found (deprecated)")
ENDFOREACH(_COMPILATION_FLAGS)
ENDFOREACH(_CURRENT_VERSION)
MARK_AS_ADVANCED(
PYTHON3_DEBUG_LIBRARY
PYTHON3_LIBRARY
PYTHON3_INCLUDE_DIR
)
# We use PYTHON3_INCLUDE_DIR, PYTHON3_LIBRARY and PYTHON3_DEBUG_LIBRARY for the
# cache entries because they are meant to specify the location of a single
# library. We now set the variables listed by the documentation for this
# module.
SET(PYTHON3_INCLUDE_DIRS "${PYTHON3_INCLUDE_DIR}")
SET(PYTHON3_LIBRARIES "${PYTHON3_LIBRARY}")
SET(PYTHON3_DEBUG_LIBRARIES "${PYTHON3_DEBUG_LIBRARY}")
#when all else fails, use the python3-config executable
if (NOT PYTHON3_LIBRARIES OR NOT PYTHON3_INCLUDE_DIRS)
find_program(PYTHON3_CONFIG_EXECUTABLE python3-config)
if(PYTHON3_CONFIG_EXECUTABLE)
execute_process(
COMMAND ${PYTHON3_CONFIG_EXECUTABLE} --includes
OUTPUT_STRIP_TRAILING_WHITESPACE
OUTPUT_VARIABLE PYTHON3_INCLUDE_DIRS)
string(REGEX REPLACE "^[-I]" "" PYTHON3_INCLUDE_DIRS "${PYTHON3_INCLUDE_DIRS}")
string(REGEX REPLACE "[ ]-I" " " PYTHON3_INCLUDE_DIRS "${PYTHON3_INCLUDE_DIRS}")
separate_arguments(PYTHON3_INCLUDE_DIRS)
execute_process(
COMMAND ${PYTHON3_CONFIG_EXECUTABLE} --ldflags
OUTPUT_STRIP_TRAILING_WHITESPACE
OUTPUT_VARIABLE PYTHON3_LIBRARIES)
string(STRIP "${PYTHON3_LIBRARIES}" PYTHON3_LIBRARIES)
endif(PYTHON3_CONFIG_EXECUTABLE)
endif()
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Python3Libs DEFAULT_MSG PYTHON3_LIBRARIES PYTHON3_INCLUDE_DIRS)
# PYTHON_ADD_MODULE(<name> src1 src2 ... srcN) is used to build modules for python.
# PYTHON_WRITE_MODULES_HEADER(<filename>) writes a header file you can include
# in your sources to initialize the static python modules
GET_PROPERTY(_TARGET_SUPPORTS_SHARED_LIBS
GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS)
FUNCTION(PYTHON3_ADD_MODULE _NAME )
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_${_NAME}_BUILD_SHARED)
SET(PY_MODULE_TYPE MODULE)
ELSE(PYTHON3_MODULE_${_NAME}_BUILD_SHARED)
SET(PY_MODULE_TYPE STATIC)
SET_PROPERTY(GLOBAL APPEND PROPERTY PY_STATIC_MODULES_LIST ${_NAME})
ENDIF(PYTHON3_MODULE_${_NAME}_BUILD_SHARED)
SET_PROPERTY(GLOBAL APPEND PROPERTY PY_MODULES_LIST ${_NAME})
ADD_LIBRARY(${_NAME} ${PY_MODULE_TYPE} ${ARGN})
# TARGET_LINK_LIBRARIES(${_NAME} ${PYTHON_LIBRARIES})
ENDIF(PYTHON3_ENABLE_MODULE_${_NAME})
ENDFUNCTION(PYTHON3_ADD_MODULE)
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 ${_name} _nameUpper)
SET(_filenameTmp "${_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 ${_filenameTmp} "extern void init${PYTHON_MODULE_PREFIX}${_currentModule}(void);\n\n")
ENDFOREACH(_currentModule ${PY_STATIC_MODULES_LIST})
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[]=\"${PYTHON_MODULE_PREFIX}${_currentModule}\"; return PyImport_AppendInittab(name, init${PYTHON_MODULE_PREFIX}${_currentModule});\n}\n\n")
ENDFOREACH(_currentModule ${PY_STATIC_MODULES_LIST})
FILE(APPEND ${_filenameTmp} "void ${_name}_LoadAllPythonModules(void)\n{\n")
FOREACH(_currentModule ${PY_STATIC_MODULES_LIST})
FILE(APPEND ${_filenameTmp} " ${_name}_${_currentModule}();\n")
ENDFOREACH(_currentModule ${PY_STATIC_MODULES_LIST})
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(PYTHON3_WRITE_MODULES_HEADER)
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