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Diffstat (limited to 'Modules/FindPythonLibs.cmake')
| -rw-r--r-- | Modules/FindPythonLibs.cmake | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/Modules/FindPythonLibs.cmake b/Modules/FindPythonLibs.cmake new file mode 100644 index 0000000..b80d3ce --- /dev/null +++ b/Modules/FindPythonLibs.cmake @@ -0,0 +1,319 @@ +#.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: +# +# :: +# +# PYTHONLIBS_FOUND - have the Python libs been found +# PYTHON_LIBRARIES - path to the python library +# PYTHON_INCLUDE_PATH - path to where Python.h is found (deprecated) +# PYTHON_INCLUDE_DIRS - path to where Python.h is found +# PYTHON_DEBUG_LIBRARIES - path to the debug library (deprecated) +# PYTHONLIBS_VERSION_STRING - version of the Python libs found (since CMake 2.8.8) +# +# +# +# The Python_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: +# +# :: +# +# PYTHON_LIBRARY - path to the python library +# PYTHON_INCLUDE_DIR - path to where Python.h is found +# +# If also calling find_package(PythonInterp), call find_package(PythonInterp) +# first to get the currently active Python version by default with a consistent +# version of PYTHON_LIBRARIES. + +#============================================================================= +# Copyright 2001-2009 Kitware, Inc. +# +# Distributed under the OSI-approved BSD License (the "License"); +# see accompanying file Copyright.txt for details. +# +# This software is distributed WITHOUT ANY WARRANTY; without even the +# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +# See the License for more information. +#============================================================================= +# (To distribute this file outside of CMake, substitute the full +# License text for the above reference.) + +include(${CMAKE_CURRENT_LIST_DIR}/CMakeFindFrameworks.cmake) +# Search for the python framework on Apple. +CMAKE_FIND_FRAMEWORKS(Python) + +# Save CMAKE_FIND_FRAMEWORK +if(DEFINED CMAKE_FIND_FRAMEWORK) + set(_PythonLibs_CMAKE_FIND_FRAMEWORK ${CMAKE_FIND_FRAMEWORK}) +else() + unset(_PythonLibs_CMAKE_FIND_FRAMEWORK) +endif() +# To avoid picking up the system Python.h pre-maturely. +set(CMAKE_FIND_FRAMEWORK LAST) + +set(_PYTHON1_VERSIONS 1.6 1.5) +set(_PYTHON2_VERSIONS 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0) +set(_PYTHON3_VERSIONS 3.4 3.3 3.2 3.1 3.0) + +if(PythonLibs_FIND_VERSION) + if(PythonLibs_FIND_VERSION_COUNT GREATER 1) + set(_PYTHON_FIND_MAJ_MIN "${PythonLibs_FIND_VERSION_MAJOR}.${PythonLibs_FIND_VERSION_MINOR}") + unset(_PYTHON_FIND_OTHER_VERSIONS) + if(PythonLibs_FIND_VERSION_EXACT) + if(_PYTHON_FIND_MAJ_MIN STREQUAL PythonLibs_FIND_VERSION) + set(_PYTHON_FIND_OTHER_VERSIONS "${PythonLibs_FIND_VERSION}") + else() + set(_PYTHON_FIND_OTHER_VERSIONS "${PythonLibs_FIND_VERSION}" "${_PYTHON_FIND_MAJ_MIN}") + endif() + else() + foreach(_PYTHON_V ${_PYTHON${PythonLibs_FIND_VERSION_MAJOR}_VERSIONS}) + if(NOT _PYTHON_V VERSION_LESS _PYTHON_FIND_MAJ_MIN) + list(APPEND _PYTHON_FIND_OTHER_VERSIONS ${_PYTHON_V}) + endif() + endforeach() + endif() + unset(_PYTHON_FIND_MAJ_MIN) + else() + set(_PYTHON_FIND_OTHER_VERSIONS ${_PYTHON${PythonLibs_FIND_VERSION_MAJOR}_VERSIONS}) + endif() +else() + set(_PYTHON_FIND_OTHER_VERSIONS ${_PYTHON3_VERSIONS} ${_PYTHON2_VERSIONS} ${_PYTHON1_VERSIONS}) +endif() + +# 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(_Python_VERSIONS ${Python_ADDITIONAL_VERSIONS}) +if(DEFINED PYTHON_VERSION_MAJOR AND DEFINED PYTHON_VERSION_MINOR) + list(APPEND _Python_VERSIONS ${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}) +endif() +list(APPEND _Python_VERSIONS ${_PYTHON_FIND_OTHER_VERSIONS}) + +unset(_PYTHON_FIND_OTHER_VERSIONS) +unset(_PYTHON1_VERSIONS) +unset(_PYTHON2_VERSIONS) +unset(_PYTHON3_VERSIONS) + +foreach(_CURRENT_VERSION ${_Python_VERSIONS}) + string(REPLACE "." "" _CURRENT_VERSION_NO_DOTS ${_CURRENT_VERSION}) + if(WIN32) + find_library(PYTHON_DEBUG_LIBRARY + NAMES python${_CURRENT_VERSION_NO_DOTS}_d python + 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(PYTHON_FRAMEWORK_LIBRARIES) + if(Python_FRAMEWORKS AND NOT PYTHON_LIBRARY) + foreach(dir ${Python_FRAMEWORKS}) + list(APPEND PYTHON_FRAMEWORK_LIBRARIES + ${dir}/Versions/${_CURRENT_VERSION}/lib) + endforeach() + endif() + find_library(PYTHON_LIBRARY + NAMES + python${_CURRENT_VERSION_NO_DOTS} + python${_CURRENT_VERSION}mu + python${_CURRENT_VERSION}m + python${_CURRENT_VERSION}u + python${_CURRENT_VERSION} + PATHS + ${PYTHON_FRAMEWORK_LIBRARIES} + [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_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(PYTHON_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${_CURRENT_VERSION}/config + ) + + # For backward compatibility, honour value of PYTHON_INCLUDE_PATH, if + # PYTHON_INCLUDE_DIR is not set. + if(DEFINED PYTHON_INCLUDE_PATH AND NOT DEFINED PYTHON_INCLUDE_DIR) + set(PYTHON_INCLUDE_DIR "${PYTHON_INCLUDE_PATH}" CACHE PATH + "Path to where Python.h is found" FORCE) + endif() + + set(PYTHON_FRAMEWORK_INCLUDES) + if(Python_FRAMEWORKS AND NOT PYTHON_INCLUDE_DIR) + foreach(dir ${Python_FRAMEWORKS}) + list(APPEND PYTHON_FRAMEWORK_INCLUDES + ${dir}/Versions/${_CURRENT_VERSION}/include/python${_CURRENT_VERSION}) + endforeach() + endif() + + find_path(PYTHON_INCLUDE_DIR + NAMES Python.h + PATHS + ${PYTHON_FRAMEWORK_INCLUDES} + [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_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} + ) + + # For backward compatibility, set PYTHON_INCLUDE_PATH. + set(PYTHON_INCLUDE_PATH "${PYTHON_INCLUDE_DIR}") + + if(PYTHON_INCLUDE_DIR AND EXISTS "${PYTHON_INCLUDE_DIR}/patchlevel.h") + file(STRINGS "${PYTHON_INCLUDE_DIR}/patchlevel.h" python_version_str + REGEX "^#define[ \t]+PY_VERSION[ \t]+\"[^\"]+\"") + string(REGEX REPLACE "^#define[ \t]+PY_VERSION[ \t]+\"([^\"]+)\".*" "\\1" + PYTHONLIBS_VERSION_STRING "${python_version_str}") + unset(python_version_str) + endif() + + if(PYTHON_LIBRARY AND PYTHON_INCLUDE_DIR) + break() + endif() +endforeach() + +mark_as_advanced( + PYTHON_DEBUG_LIBRARY + PYTHON_LIBRARY + PYTHON_INCLUDE_DIR +) + +# We use PYTHON_INCLUDE_DIR, PYTHON_LIBRARY and PYTHON_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(PYTHON_INCLUDE_DIRS "${PYTHON_INCLUDE_DIR}") +set(PYTHON_DEBUG_LIBRARIES "${PYTHON_DEBUG_LIBRARY}") + +# These variables have been historically named in this module different from +# what SELECT_LIBRARY_CONFIGURATIONS() expects. +set(PYTHON_LIBRARY_DEBUG "${PYTHON_DEBUG_LIBRARY}") +set(PYTHON_LIBRARY_RELEASE "${PYTHON_LIBRARY}") +include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake) +SELECT_LIBRARY_CONFIGURATIONS(PYTHON) +# 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(PYTHON_FOUND) + +# Restore CMAKE_FIND_FRAMEWORK +if(DEFINED _PythonLibs_CMAKE_FIND_FRAMEWORK) + set(CMAKE_FIND_FRAMEWORK ${_PythonLibs_CMAKE_FIND_FRAMEWORK}) + unset(_PythonLibs_CMAKE_FIND_FRAMEWORK) +else() + unset(CMAKE_FIND_FRAMEWORK) +endif() + +include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) +FIND_PACKAGE_HANDLE_STANDARD_ARGS(PythonLibs + REQUIRED_VARS PYTHON_LIBRARIES PYTHON_INCLUDE_DIRS + VERSION_VAR PYTHONLIBS_VERSION_STRING) + +# 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 +function(PYTHON_ADD_MODULE _NAME ) + get_property(_TARGET_SUPPORTS_SHARED_LIBS + GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS) + option(PYTHON_ENABLE_MODULE_${_NAME} "Add module ${_NAME}" TRUE) + option(PYTHON_MODULE_${_NAME}_BUILD_SHARED + "Add module ${_NAME} shared" ${_TARGET_SUPPORTS_SHARED_LIBS}) + + # Mark these options as advanced + mark_as_advanced(PYTHON_ENABLE_MODULE_${_NAME} + PYTHON_MODULE_${_NAME}_BUILD_SHARED) + + if(PYTHON_ENABLE_MODULE_${_NAME}) + if(PYTHON_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} ${PYTHON_LIBRARIES}) + + if(PYTHON_MODULE_${_NAME}_BUILD_SHARED) + set_target_properties(${_NAME} PROPERTIES PREFIX "${PYTHON_MODULE_PREFIX}") + if(WIN32 AND NOT CYGWIN) + set_target_properties(${_NAME} PROPERTIES SUFFIX ".pyd") + endif() + endif() + + endif() +endfunction() + +function(PYTHON_WRITE_MODULES_HEADER _filename) + + get_property(PY_STATIC_MODULES_LIST GLOBAL PROPERTY PY_STATIC_MODULES_LIST) + + get_filename_component(_name "${_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 ${_filenameTmp} "extern void init${PYTHON_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[]=\"${PYTHON_MODULE_PREFIX}${_currentModule}\"; return PyImport_AppendInittab(name, init${PYTHON_MODULE_PREFIX}${_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() |