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#
# Copyright 2010-2011 Ettus Research LLC
# Copyright 2018 Ettus Research, a National Instruments Company
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
IF(NOT DEFINED INCLUDED_UHD_PYTHON_CMAKE)
SET(INCLUDED_UHD_PYTHON_CMAKE TRUE)
########################################################################
# Setup Python
########################################################################
MESSAGE(STATUS "")
MESSAGE(STATUS "Configuring the python interpreter...")
#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
FIND_PACKAGE(PythonInterp)
#and if that fails use the find program routine
IF(NOT PYTHONINTERP_FOUND)
FIND_PROGRAM(PYTHON_EXECUTABLE NAMES python python2.7)
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")
MESSAGE(STATUS "Python interpreter: ${PYTHON_EXECUTABLE}")
MESSAGE(STATUS "Override with: -DPYTHON_EXECUTABLE=<path-to-python>")
IF(NOT PYTHONINTERP_FOUND)
MESSAGE(FATAL_ERROR "Error: Python interpreter required by the build system.")
ENDIF(NOT PYTHONINTERP_FOUND)
MACRO(PYTHON_CHECK_MODULE desc mod cmd have)
MESSAGE(STATUS "")
MESSAGE(STATUS "Python checking for ${desc}")
EXECUTE_PROCESS(
COMMAND ${PYTHON_EXECUTABLE} -c "
#########################################
from distutils.version import LooseVersion
try: import ${mod}
except: exit(1)
try: assert ${cmd}
except: exit(2)
exit(0)
#########################################"
RESULT_VARIABLE ${have}
)
IF(${have} EQUAL 0)
MESSAGE(STATUS "Python checking for ${desc} - found")
SET(${have} TRUE)
ELSEIF(${have} EQUAL 1)
MESSAGE(STATUS "Python checking for ${desc} - \"import ${mod}\" failed")
SET(${have} FALSE)
ELSEIF(${have} EQUAL 2)
MESSAGE(STATUS "Python checking for ${desc} - \"assert ${cmd}\" failed")
SET(${have} FALSE)
ELSE()
MESSAGE(STATUS "Python checking for ${desc} - unknown error")
SET(${have} FALSE)
ENDIF()
ENDMACRO(PYTHON_CHECK_MODULE)
ENDIF(NOT DEFINED INCLUDED_UHD_PYTHON_CMAKE)
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