148 lines
4.1 KiB
CMake
148 lines
4.1 KiB
CMake
# - Find Python libraries
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# Find the native Python includes and library
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#
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# Note:, This is not _yet_ intended to be a general python module for other
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# projects to use since its hard coded to python 3.2 as blender only supports
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# a single python version.
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# This is for blender/unix python only.
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#
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# This module defines
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# PYTHON_VERSION
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# PYTHON_INCLUDE_DIRS
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# PYTHON_LIBRARIES
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# PYTHON_LIBPATH, Used for installation
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# PYTHON_LINKFLAGS
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# PYTHON_ROOT_DIR, The base directory to search for Python.
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# This can also be an environment variable.
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#
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# also defined, but not for general use are
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# PYTHON_LIBRARY, where to find the python library.
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#=============================================================================
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# Copyright 2011 Blender Foundation.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# If PYTHON_ROOT_DIR was defined in the environment, use it.
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IF(NOT PYTHON_ROOT_DIR AND NOT $ENV{PYTHON_ROOT_DIR} STREQUAL "")
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SET(PYTHON_ROOT_DIR $ENV{PYTHON_ROOT_DIR})
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ENDIF()
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SET(PYTHON_VERSION 3.2 CACHE STRING "Python Version (major and minor only)")
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MARK_AS_ADVANCED(PYTHON_VERSION)
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# See: http://docs.python.org/extending/embedding.html#linking-requirements
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# for why this is needed
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SET(PYTHON_LINKFLAGS "-Xlinker -export-dynamic" CACHE STRING "Linker flags for python")
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MARK_AS_ADVANCED(PYTHON_LINKFLAGS)
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# if the user passes these defines as args, we dont want to overwrite
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SET(_IS_INC_DEF OFF)
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SET(_IS_LIB_DEF OFF)
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IF(DEFINED PYTHON_INCLUDE_DIR)
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SET(_IS_INC_DEF ON)
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ENDIF()
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IF(DEFINED PYTHON_LIBRARY)
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SET(_IS_LIB_DEF ON)
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ENDIF()
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# only search for the dirs if we havn't already
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IF((NOT _IS_INC_DEF) OR (NOT _IS_LIB_DEF))
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SET(_python_ABI_FLAGS
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"m;mu;u; " # release
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"md;mud;ud;d" # debug
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)
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STRING(REPLACE "." "" _PYTHON_VERSION_NO_DOTS ${PYTHON_VERSION})
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SET(_python_SEARCH_DIRS
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${PYTHON_ROOT_DIR}
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"$ENV{HOME}/py${_PYTHON_VERSION_NO_DOTS}"
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"/opt/py${_PYTHON_VERSION_NO_DOTS}"
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)
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FOREACH(_CURRENT_ABI_FLAGS ${_python_ABI_FLAGS})
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#IF(CMAKE_BUILD_TYPE STREQUAL Debug)
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# SET(_CURRENT_ABI_FLAGS "d${_CURRENT_ABI_FLAGS}")
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#ENDIF()
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STRING(REPLACE " " "" _CURRENT_ABI_FLAGS ${_CURRENT_ABI_FLAGS})
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IF(NOT DEFINED PYTHON_INCLUDE_DIR)
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FIND_PATH(PYTHON_INCLUDE_DIR
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NAMES
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Python.h
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HINTS
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${_python_SEARCH_DIRS}
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PATH_SUFFIXES
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include/python${PYTHON_VERSION}${_CURRENT_ABI_FLAGS}
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)
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ENDIF()
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IF(NOT DEFINED PYTHON_LIBRARY)
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FIND_LIBRARY(PYTHON_LIBRARY
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NAMES
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"python${PYTHON_VERSION}${_CURRENT_ABI_FLAGS}"
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HINTS
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${_python_SEARCH_DIRS}
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PATH_SUFFIXES
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lib64 lib
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)
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ENDIF()
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IF(PYTHON_LIBRARY AND PYTHON_INCLUDE_DIR)
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break()
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ELSE()
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# ensure we dont find values from 2 different ABI versions
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IF(NOT _IS_INC_DEF)
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UNSET(PYTHON_INCLUDE_DIR CACHE)
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ENDIF()
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IF(NOT _IS_LIB_DEF)
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UNSET(PYTHON_LIBRARY CACHE)
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ENDIF()
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ENDIF()
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ENDFOREACH()
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UNSET(_CURRENT_ABI_FLAGS)
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UNSET(_CURRENT_PATH)
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UNSET(_python_ABI_FLAGS)
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UNSET(_python_SEARCH_DIRS)
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ENDIF()
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UNSET(_IS_INC_DEF)
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UNSET(_IS_LIB_DEF)
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# handle the QUIETLY and REQUIRED arguments and SET PYTHONLIBSUNIX_FOUND to TRUE IF
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# all listed variables are TRUE
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INCLUDE(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(PythonLibsUnix DEFAULT_MSG
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PYTHON_LIBRARY PYTHON_INCLUDE_DIR)
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IF(PYTHONLIBSUNIX_FOUND)
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# Assign cache items
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SET(PYTHON_INCLUDE_DIRS ${PYTHON_INCLUDE_DIR})
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SET(PYTHON_LIBRARIES ${PYTHON_LIBRARY})
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# we need this for installation
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GET_FILENAME_COMPONENT(PYTHON_LIBPATH ${PYTHON_LIBRARY} PATH)
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# not used
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# SET(PYTHON_BINARY ${PYTHON_EXECUTABLE} CACHE STRING "")
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MARK_AS_ADVANCED(
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PYTHON_INCLUDE_DIR
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PYTHON_LIBRARY
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)
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ENDIF()
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