#------------------------------------------------------------------------------- # Copyright (c) 2019, Arm Limited. All rights reserved. # # SPDX-License-Identifier: BSD-3-Clause # #------------------------------------------------------------------------------- #FindPythonModules #----------- #This module checks availability of Python modules. # #This module has the following parameters: # PYTHON_EXECUTABLE - Location of python interpreter. # COMPONENTS - List of python modules to look for. # #This module defines the following variables: # PY_XXX - Cached string variable with the location of the module. # PY_XXX_FOUND - Set if the module is available. # # Where XXX is the upper case name of the module. # #Examples # To look for m2r and report error if not found # find_module(PythonModules COMPONENTS m2r) # if (PY_M2R_FOUND) # do something # endif() # # To look for m2r and do not report error if not found # find_module(PythonModules OPTIONAL_COMPONENTS m2r) # if (PY_M2R_FOUND) # do something # endif() if(NOT DEFINED PYTHON_EXECUTABLE) message(FATAL_ERROR "FindPythonModules: mandatory parameter PYTHON_EXECUTABLE is missing.") endif() include(Common/Utils) foreach(_mod ${PythonModules_FIND_COMPONENTS}) string(TOUPPER ${_mod} _mod_upper) string(REPLACE "-" "_" _modname "${_mod}") if (NOT PY_${_mod_upper}) #Execute python and try to include the module. execute_process( COMMAND ${PYTHON_EXECUTABLE} -c "import ${_modname}; print(${_modname}.__file__);" RESULT_VARIABLE ${_mod}_status OUTPUT_VARIABLE ${_mod}_path ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE) #If suceeded if(NOT ${_mod}_status) #Avoid trouble with directory separator on windows. win_fix_dir_sep(PATH ${_mod}_path) set("PY_${_mod_upper}" "${${_mod}_path}" CACHE STRING "Location of Python module ${_mod}") endif() endif() find_package_handle_standard_args(PY_${_mod_upper} FOUND_VAR PY_${_mod_upper}_FOUND REQUIRED_VARS PY_${_mod_upper} FAIL_MESSAGE "Can not find Python module ${_mod}") endforeach()