CMake/Modules/FindPythonLibs.cmake

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# - Find python libraries
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# 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
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# PYTHON_LIBRARIES = path to the python library
# PYTHON_INCLUDE_PATH = path to where Python.h is found
# PYTHON_DEBUG_LIBRARIES = path to the debug library
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#
INCLUDE(CMakeFindFrameworks)
# Search for the python framework on Apple.
CMAKE_FIND_FRAMEWORKS(Python)
FOREACH(_CURRENT_VERSION 2.5 2.4 2.3 2.2 2.1 2.0 1.6 1.5)
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_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs )
ENDIF(WIN32)
FIND_LIBRARY(PYTHON_LIBRARY
NAMES python${_CURRENT_VERSION_NO_DOTS} python${_CURRENT_VERSION}
PATHS
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs
PATH_SUFFIXES
python${_CURRENT_VERSION}/config
# Avoid finding the .dll in the PATH. We want the .lib.
NO_SYSTEM_ENVIRONMENT_PATH
)
SET(PYTHON_FRAMEWORK_INCLUDES)
IF(Python_FRAMEWORKS AND NOT PYTHON_INCLUDE_PATH)
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_PATH)
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FIND_PATH(PYTHON_INCLUDE_PATH
NAMES Python.h
PATHS
${PYTHON_FRAMEWORK_INCLUDES}
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/include
PATH_SUFFIXES
python${_CURRENT_VERSION}
)
ENDFOREACH(_CURRENT_VERSION)
MARK_AS_ADVANCED(
PYTHON_DEBUG_LIBRARY
PYTHON_LIBRARY
PYTHON_INCLUDE_PATH
)
# Python Should be built and installed as a Framework on OSX
IF(Python_FRAMEWORKS)
# If a framework has been selected for the include path,
# make sure "-framework" is used to link it.
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IF("${PYTHON_INCLUDE_PATH}" MATCHES "Python\\.framework")
SET(PYTHON_LIBRARY "")
SET(PYTHON_DEBUG_LIBRARY "")
ENDIF("${PYTHON_INCLUDE_PATH}" MATCHES "Python\\.framework")
IF(NOT PYTHON_LIBRARY)
SET (PYTHON_LIBRARY "-framework Python" CACHE FILEPATH "Python Framework" FORCE)
ENDIF(NOT PYTHON_LIBRARY)
IF(NOT PYTHON_DEBUG_LIBRARY)
SET (PYTHON_DEBUG_LIBRARY "-framework Python" CACHE FILEPATH "Python Framework" FORCE)
ENDIF(NOT PYTHON_DEBUG_LIBRARY)
ENDIF(Python_FRAMEWORKS)
# We use PYTHON_LIBRARY and PYTHON_DEBUG_LIBRARY for the cache entries
# because they are meant to specify the location of a single library.
# We now set the variables listed by the documentation for this
# module.
SET(PYTHON_LIBRARIES "${PYTHON_LIBRARY}")
SET(PYTHON_DEBUG_LIBRARIES "${PYTHON_DEBUG_LIBRARY}")
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(PythonLibs DEFAULT_MSG PYTHON_LIBRARIES PYTHON_INCLUDE_PATH)
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GET_TARGET_PROPERTY(_FIND_PYTHONLIBS_ALREADY_INCLUDED __FindPythonLibsHelper TYPE)
IF(NOT _FIND_PYTHONLIBS_ALREADY_INCLUDED)
ADD_CUSTOM_TARGET(__FindPythonLibsHelper) # so if this file is included several times the next time GET_TARGET_PROPERTIES() will work
SET(PY_STATIC_MODULES_LIST "" CACHE STRING "Collect a list of all added static python modules" FORCE)
SET(PY_MODULES_LIST "" CACHE STRING "Collect a list of all added python modules" FORCE)
ENDIF(NOT _FIND_PYTHONLIBS_ALREADY_INCLUDED)
GET_PROPERTY(_TARGET_SUPPORTS_SHARED_LIBS GLOBAL TARGET_SUPPORTS_SHARED_LIBS)
MACRO(PYTHON_ADD_MODULE _NAME )
OPTION(PYTHON_ENABLE_MODULE_${_NAME} "Add module ${_NAME}" TRUE)
OPTION(PYTHON_MODULE_${_NAME}_BUILD_SHARED "Add module ${_NAME} shared" ${_TARGET_SUPPORTS_SHARED_LIBS})
IF(PYTHON_ENABLE_MODULE_${_NAME})
IF(PYTHON_MODULE_${_NAME}_BUILD_SHARED)
SET(PY_MODULE_TYPE MODULE)
ELSE(PYTHON_MODULE_${_NAME}_BUILD_SHARED)
SET(PY_MODULE_TYPE STATIC)
SET(PY_STATIC_MODULES_LIST ${PY_STATIC_MODULES_LIST} ${_NAME} CACHE STRING "Collect a list of all added static python modules" FORCE)
ENDIF(PYTHON_MODULE_${_NAME}_BUILD_SHARED)
SET(PY_MODULES_LIST ${PY_MODULES_LIST} ${_NAME} CACHE STRING "Collect a list of all added python modules" FORCE)
ADD_LIBRARY(${_NAME} ${PY_MODULE_TYPE} ${ARGN})
# TARGET_LINK_LIBRARIES(${_NAME} ${PYTHON_LIBRARIES})
ENDIF(PYTHON_ENABLE_MODULE_${_NAME})
ENDMACRO(PYTHON_ADD_MODULE)
MACRO(PYTHON_WRITE_MODULES_HEADER _filename)
GET_FILENAME_COMPONENT(_name "${_filename}" NAME)
STRING(REPLACE "." "_" _name "${_name}")
STRING(TOUPPER ${_name} _name)
SET(_filenameTmp "${_filename}.in")
FILE(WRITE ${_filenameTmp} "/*Created by cmake, do not edit, changes will be lost*/\n")
FILE(APPEND ${_filenameTmp}
"#ifndef ${_name}
#define ${_name}
#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 ${_filenameTmp} "int CMakeLoadPythonModule_${_currentModule}(void) \n{\n 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} "#ifndef EXCLUDE_LOAD_ALL_FUNCTION\nvoid CMakeLoadAllPythonModules(void)\n{\n")
FOREACH(_currentModule ${PY_STATIC_MODULES_LIST})
FILE(APPEND ${_filenameTmp} " CMakeLoadPythonModule_${_currentModule}();\n")
ENDFOREACH(_currentModule ${PY_STATIC_MODULES_LIST})
FILE(APPEND ${_filenameTmp} "}\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)
ENDMACRO(PYTHON_WRITE_MODULES_HEADER)