2016-12-25 19:42:20 +00:00
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########################################################################
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# Setup the python interpreter:
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# This allows the user to specify a specific interpreter,
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# or finds the interpreter via the built-in cmake module.
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########################################################################
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#this allows the user to override PYTHON_EXECUTABLE
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if(PYTHON_EXECUTABLE)
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set(PYTHONINTERP_FOUND TRUE)
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#otherwise if not set, try to automatically find it
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else(PYTHON_EXECUTABLE)
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#use the built-in find script
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set(Python_ADDITIONAL_VERSIONS 3.4 3.5 3.6)
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find_package(PythonInterp 2)
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#and if that fails use the find program routine
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if(NOT PYTHONINTERP_FOUND)
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find_program(PYTHON_EXECUTABLE NAMES python python2 python2.7 python3)
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if(PYTHON_EXECUTABLE)
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set(PYTHONINTERP_FOUND TRUE)
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endif(PYTHON_EXECUTABLE)
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endif(NOT PYTHONINTERP_FOUND)
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endif(PYTHON_EXECUTABLE)
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2016-12-26 11:29:05 +00:00
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if (CMAKE_CROSSCOMPILING)
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set(QA_PYTHON_EXECUTABLE "/usr/bin/python")
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else (CMAKE_CROSSCOMPILING)
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set(QA_PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE})
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endif(CMAKE_CROSSCOMPILING)
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2016-12-25 19:42:20 +00:00
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#make the path to the executable appear in the cmake gui
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set(PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE} CACHE FILEPATH "python interpreter")
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2016-12-26 11:29:05 +00:00
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set(QA_PYTHON_EXECUTABLE ${QA_PYTHON_EXECUTABLE} CACHE FILEPATH "python interpreter for QA tests")
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2016-12-25 19:42:20 +00:00
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#make sure we can use -B with python (introduced in 2.6)
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if(PYTHON_EXECUTABLE)
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execute_process(
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COMMAND ${PYTHON_EXECUTABLE} -B -c ""
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OUTPUT_QUIET ERROR_QUIET
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RESULT_VARIABLE PYTHON_HAS_DASH_B_RESULT
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)
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if(PYTHON_HAS_DASH_B_RESULT EQUAL 0)
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set(PYTHON_DASH_B "-B")
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endif()
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endif(PYTHON_EXECUTABLE)
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########################################################################
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# Check for the existence of a python module:
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# - desc a string description of the check
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# - mod the name of the module to import
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# - cmd an additional command to run
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# - have the result variable to set
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########################################################################
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macro(GNSSSDR_PYTHON_CHECK_MODULE desc mod cmd have)
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message(STATUS "Python checking for ${desc}")
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execute_process(
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COMMAND ${PYTHON_EXECUTABLE} -c "
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#########################################
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try: import ${mod}
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except:
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try: ${mod}
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except: exit(-1)
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try: assert ${cmd}
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except: exit(-1)
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#########################################"
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RESULT_VARIABLE ${have}
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)
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if(${have} EQUAL 0)
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message(STATUS "Python checking for ${desc} - found")
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set(${have} TRUE)
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else(${have} EQUAL 0)
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message(STATUS "Python checking for ${desc} - not found")
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set(${have} FALSE)
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endif(${have} EQUAL 0)
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endmacro(GNSSSDR_PYTHON_CHECK_MODULE)
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