mirror of
https://github.com/triqs/dft_tools
synced 2024-12-25 13:53:40 +01:00
0fd82579e3
There is a bug in Ubuntu 14.04 : the interpreter does not return the correct position of the libpython. We add the correct path to the path hints, at the end (lowest priority). In most machines, the first hint is the correct answer.
177 lines
7.4 KiB
CMake
177 lines
7.4 KiB
CMake
# Copyright Olivier Parcollet 2012
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# Distributed under the Boost Software License, Version 1.0.
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# (See accompanying file LICENSE_1_0.txt or copy at
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# http://www.boost.org/LICENSE_1_0.txt)
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#
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# Python settings :
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#
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# This module checks that :
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# - the python interpreter is working and version >= 2.6.5
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# - it has modules : distutils, numpy
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#
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# This module defines the variables
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# - PYTHON_INTERPRETER : name of the python interpreter
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# - PYTHON_INCLUDE_DIRS : include for compilation
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# - PYTHON_NUMPY_INCLUDE_DIR : include for compilation with numpy
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# - PYTHON_LIBRARY : link flags
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# - PYTHON_SITE_PKG : path to the standard packages of the python interpreter
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# - PYTHON_EXTRA_LIBS : libraries which must be linked in when embedding
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# - PYTHON_LINK_FOR_SHARED : linking flags needed when building a shared lib for external modules
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set(PYTHON_MINIMAL_VERSION 2.6.5)
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MESSAGE( STATUS "-------- Python detection -------------")
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# IF PYTHON_INTERPRETER is not defined, try to find a python
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if (NOT PYTHON_INTERPRETER )
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find_program(PYTHON_INTERPRETER python PATHS $ENV{PATH})
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endif (NOT PYTHON_INTERPRETER)
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if (NOT PYTHON_INTERPRETER)
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MESSAGE(FATAL_ERROR "No python interpreter found")
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endif(NOT PYTHON_INTERPRETER)
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MESSAGE (STATUS "Python interpreter ${PYTHON_INTERPRETER}")
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#
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# The function EXEC_PYTHON_SCRIPT executes the_script in python interpreter
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# and set the variable of output_var_name in the calling scope
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#
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FUNCTION ( EXEC_PYTHON_SCRIPT the_script output_var_name)
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EXECUTE_PROCESS(COMMAND ${PYTHON_INTERPRETER} -c "${the_script}"
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OUTPUT_VARIABLE res RESULT_VARIABLE returncode OUTPUT_STRIP_TRAILING_WHITESPACE)
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IF (NOT returncode EQUAL 0)
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MESSAGE(FATAL_ERROR "The script : ${the_script} \n did not run properly in the Python interpreter. Check your python installation.")
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ENDIF (NOT returncode EQUAL 0)
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SET( ${output_var_name} ${res} PARENT_SCOPE)
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ENDFUNCTION (EXEC_PYTHON_SCRIPT)
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#
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# Check the interpreter and its version
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#
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EXEC_PYTHON_SCRIPT ("import sys, string; print sys.version.split()[0]" PYTHON_VERSION)
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STRING(COMPARE GREATER ${PYTHON_MINIMAL_VERSION} ${PYTHON_VERSION} PYTHON_VERSION_NOT_OK)
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IF (PYTHON_VERSION_NOT_OK)
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MESSAGE(FATAL_ERROR "Python intepreter version is ${PYTHON_VERSION} . It should be >= ${PYTHON_MINIMAL_VERSION}")
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ENDIF (PYTHON_VERSION_NOT_OK)
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EXEC_PYTHON_SCRIPT ("import mako.template" nulle) # check that Mako is there...
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EXEC_PYTHON_SCRIPT ("import distutils " nulle) # check that distutils is there...
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EXEC_PYTHON_SCRIPT ("import numpy" nulle) # check that numpy is there...
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EXEC_PYTHON_SCRIPT ("import h5py" nulle) # check that h5py is there...
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EXEC_PYTHON_SCRIPT ("import scipy" nulle) # check that scipy is there...
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if (Python_use_mpi4py)
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EXEC_PYTHON_SCRIPT ("import mpi4py" nulle) # check that mpi4py is there...
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endif()
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MESSAGE(STATUS "Python interpreter and modules are ok : version ${PYTHON_VERSION}" )
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#
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# Check for Python include path
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#
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EXEC_PYTHON_SCRIPT ("import distutils ; from distutils.sysconfig import * ; print distutils.sysconfig.get_python_inc()" PYTHON_INCLUDE_DIRS )
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message(STATUS "PYTHON_INCLUDE_DIRS = ${PYTHON_INCLUDE_DIRS}" )
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mark_as_advanced(PYTHON_INCLUDE_DIRS)
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FIND_PATH(TEST_PYTHON_INCLUDE patchlevel.h PATHS ${PYTHON_INCLUDE_DIRS} NO_DEFAULT_PATH)
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if (NOT TEST_PYTHON_INCLUDE)
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message (ERROR "The Python herader files have not been found. Please check that you installed the Python headers and not only the interpreter.")
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endif (NOT TEST_PYTHON_INCLUDE)
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mark_as_advanced(TEST_PYTHON_INCLUDE)
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#
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# include files for numpy
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#
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EXEC_PYTHON_SCRIPT ("import numpy;print numpy.get_include()" PYTHON_NUMPY_INCLUDE_DIR)
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MESSAGE(STATUS "PYTHON_NUMPY_INCLUDE_DIR = ${PYTHON_NUMPY_INCLUDE_DIR}" )
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mark_as_advanced(PYTHON_NUMPY_INCLUDE_DIR)
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#
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# include files for numpy
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#
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EXEC_PYTHON_SCRIPT ("import numpy;print numpy.version.version" PYTHON_NUMPY_VERSION)
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MESSAGE(STATUS "PYTHON_NUMPY_VERSION = ${PYTHON_NUMPY_VERSION}" )
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mark_as_advanced(PYTHON_NUMPY_VERSION)
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#
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# Check for site packages
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#
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EXEC_PYTHON_SCRIPT ("from distutils.sysconfig import * ;print get_python_lib(0,0)"
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PYTHON_SITE_PKG)
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MESSAGE(STATUS "PYTHON_SITE_PKG = ${PYTHON_SITE_PKG}" )
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mark_as_advanced(PYTHON_SITE_PKG)
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#
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# Check for Python library path
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#
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#EXEC_PYTHON_SCRIPT ("import string; from distutils.sysconfig import * ;print string.join(get_config_vars('VERSION'))" PYTHON_VERSION_MAJOR_MINOR)
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EXEC_PYTHON_SCRIPT ("import string; from distutils.sysconfig import *; print '%s/config' % get_python_lib(0,1)" PYTHON_LIBRARY_BASE_PATH)
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EXEC_PYTHON_SCRIPT ("import string; from distutils.sysconfig import *; print 'libpython%s' % string.join(get_config_vars('VERSION'))" PYTHON_LIBRARY_BASE_FILE)
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set( PYTHON_LIBRARY_SEARCH_PATH ${PYTHON_LIBRARY_BASE_PATH} /usr/lib/python2.7/config-x86_64-linux-gnu/)
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IF(BUILD_SHARED_LIBS)
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FIND_FILE(PYTHON_LIBRARY NAMES "${PYTHON_LIBRARY_BASE_FILE}.so" PATHS ${PYTHON_LIBRARY_SEARCH_PATH})
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IF(NOT PYTHON_LIBRARY)
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FIND_FILE(PYTHON_LIBRARY NAMES "${PYTHON_LIBRARY_BASE_FILE}.a" PATHS ${PYTHON_LIBRARY_SEARCH_PATH})
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ENDIF(NOT PYTHON_LIBRARY)
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ELSE(BUILD_SHARED_LIBS)
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FIND_FILE(PYTHON_LIBRARY NAMES "${PYTHON_LIBRARY_BASE_FILE}.a" PATHS ${PYTHON_LIBRARY_SEARCH_PATH})
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ENDIF(BUILD_SHARED_LIBS)
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MESSAGE(STATUS "PYTHON_LIBRARY = ${PYTHON_LIBRARY}" )
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mark_as_advanced(PYTHON_LIBRARY)
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#
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# libraries which must be linked in when embedding
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#
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EXEC_PYTHON_SCRIPT ("from distutils.sysconfig import * ;print (str(get_config_var('LOCALMODLIBS')) + ' ' + str(get_config_var('LIBS'))).strip()"
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PYTHON_EXTRA_LIBS)
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MESSAGE(STATUS "PYTHON_EXTRA_LIBS =${PYTHON_EXTRA_LIBS}" )
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mark_as_advanced(PYTHON_EXTRA_LIBS)
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#
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# Looking for ipython ... (optional)
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# not very useful... in static case, we should not allow ipython anyway I guess...
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EXECUTE_PROCESS(COMMAND ${PYTHON_INTERPRETER} -c "try :\n import IPython\n print 1\nexcept:\n print 0" OUTPUT_VARIABLE TRIQS_IPYTHON_DETECTED RESULT_VARIABLE returncode OUTPUT_STRIP_TRAILING_WHITESPACE)
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if (TRIQS_IPYTHON_DETECTED)
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MESSAGE(STATUS "IPython found")
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else (TRIQS_IPYTHON_DETECTED)
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MESSAGE(STATUS "IPython NOT FOUND ")
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endif (TRIQS_IPYTHON_DETECTED)
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#
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# linking flags needed when embedding (building a shared lib)
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# To BE RETESTED
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#
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#EXEC_PYTHON_SCRIPT ("from distutils.sysconfig import *;print get_config_var('LINKFORSHARED')"
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# PYTHON_LINK_FOR_SHARED)
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#MESSAGE(STATUS "PYTHON_LINK_FOR_SHARED = ${PYTHON_LINK_FOR_SHARED}" )
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#mark_as_advanced(PYTHON_LINK_FOR_SHARED)
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# Correction on Mac
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#IF(APPLE)
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# SET (PYTHON_LINK_FOR_SHARED -u _PyMac_Error -framework Python)
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# SET (PYTHON_LINK_MODULE -bundle -undefined dynamic_lookup)
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#ELSE(APPLE)
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# SET (PYTHON_LINK_MODULE -shared)
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#ENDIF(APPLE)
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set (PYTHONLIBS_FOUND TRUE) #${PYTHON_FOUND})
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# used in BOOST ONLY !!
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FUNCTION(PYTHON_ADD_MODULE _NAME )
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OPTION(PYTHON_ENABLE_MODULE_${_NAME} "Add module ${_NAME}" TRUE)
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OPTION(PYTHON_MODULE_${_NAME}_BUILD_SHARED "Add module ${_NAME} shared" ${BUILD_SHARED_LIBS})
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IF(PYTHON_ENABLE_MODULE_${_NAME})
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IF(PYTHON_MODULE_${_NAME}_BUILD_SHARED)
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SET(PY_MODULE_TYPE MODULE)
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ELSE(PYTHON_MODULE_${_NAME}_BUILD_SHARED)
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SET(PY_MODULE_TYPE STATIC)
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SET_PROPERTY(GLOBAL APPEND PROPERTY PY_STATIC_MODULES_LIST ${_NAME})
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ENDIF(PYTHON_MODULE_${_NAME}_BUILD_SHARED)
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SET_PROPERTY(GLOBAL APPEND PROPERTY PY_MODULES_LIST ${_NAME})
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ADD_LIBRARY(${_NAME} ${PY_MODULE_TYPE} ${ARGN})
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# TARGET_LINK_LIBRARIES(${_NAME} ${PYTHON_LIBRARIES})
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ENDIF(PYTHON_ENABLE_MODULE_${_NAME})
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ENDFUNCTION(PYTHON_ADD_MODULE)
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MESSAGE( STATUS "--------------------------------------------")
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