######################################################################## # Setup the python interpreter: # This allows the user to specify a specific interpreter, # or finds the interpreter via the built-in cmake module. ######################################################################## #this allows the user to override PYTHON_EXECUTABLE if(PYTHON_EXECUTABLE) set(PYTHONINTERP_FOUND TRUE) #otherwise if not set, try to automatically find it else(PYTHON_EXECUTABLE) #use the built-in find script set(Python_ADDITIONAL_VERSIONS 3.4 3.5 3.6) find_package(PythonInterp 2) #and if that fails use the find program routine if(NOT PYTHONINTERP_FOUND) find_program(PYTHON_EXECUTABLE NAMES python python2 python2.7 python3) if(PYTHON_EXECUTABLE) set(PYTHONINTERP_FOUND TRUE) endif(PYTHON_EXECUTABLE) endif(NOT PYTHONINTERP_FOUND) endif(PYTHON_EXECUTABLE) #make the path to the executable appear in the cmake gui set(PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE} CACHE FILEPATH "python interpreter") #make sure we can use -B with python (introduced in 2.6) if(PYTHON_EXECUTABLE) execute_process( COMMAND ${PYTHON_EXECUTABLE} -B -c "" OUTPUT_QUIET ERROR_QUIET RESULT_VARIABLE PYTHON_HAS_DASH_B_RESULT ) if(PYTHON_HAS_DASH_B_RESULT EQUAL 0) set(PYTHON_DASH_B "-B") endif() endif(PYTHON_EXECUTABLE) ######################################################################## # Check for the existence of a python module: # - desc a string description of the check # - mod the name of the module to import # - cmd an additional command to run # - have the result variable to set ######################################################################## macro(GNSSSDR_PYTHON_CHECK_MODULE desc mod cmd have) message(STATUS "Python checking for ${desc}") execute_process( COMMAND ${PYTHON_EXECUTABLE} -c " ######################################### try: import ${mod} except: try: ${mod} except: exit(-1) try: assert ${cmd} except: exit(-1) #########################################" RESULT_VARIABLE ${have} ) if(${have} EQUAL 0) message(STATUS "Python checking for ${desc} - found") set(${have} TRUE) else(${have} EQUAL 0) message(STATUS "Python checking for ${desc} - not found") set(${have} FALSE) endif(${have} EQUAL 0) endmacro(GNSSSDR_PYTHON_CHECK_MODULE)