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# - Find SWIG
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# This module finds an installed SWIG. It sets the following variables:
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# SWIG_FOUND - set to true if SWIG is found
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# SWIG_DIR - the directory where swig is installed
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# SWIG_EXECUTABLE - the path to the swig executable
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# SWIG_VERSION - the version number of the swig executable
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#
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# The minimum required version of SWIG can be specified using the
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# standard syntax, e.g. FIND_PACKAGE(SWIG 1.1)
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#
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# All information is collected from the SWIG_EXECUTABLE so the
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# version to be found can be changed from the command line by
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# means of setting SWIG_EXECUTABLE
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#
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#=============================================================================
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# Copyright 2004-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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FIND_PROGRAM(SWIG_EXECUTABLE swig)
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IF(SWIG_EXECUTABLE)
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EXECUTE_PROCESS(COMMAND ${SWIG_EXECUTABLE} -swiglib
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OUTPUT_VARIABLE SWIG_swiglib_output
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ERROR_VARIABLE SWIG_swiglib_error
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RESULT_VARIABLE SWIG_swiglib_result)
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IF(SWIG_swiglib_result)
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IF(SWIG_FIND_REQUIRED)
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MESSAGE(SEND_ERROR "Command \"${SWIG_EXECUTABLE} -swiglib\" failed with output:\n${SWIG_swiglib_error}")
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ELSE(SWIG_FIND_REQUIRED)
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MESSAGE(STATUS "Command \"${SWIG_EXECUTABLE} -swiglib\" failed with output:\n${SWIG_swiglib_error}")
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ENDIF(SWIG_FIND_REQUIRED)
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ELSE(SWIG_swiglib_result)
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STRING(REGEX REPLACE "[\n\r]+" ";" SWIG_swiglib_output ${SWIG_swiglib_output})
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# force the path to be computed each time in case SWIG_EXECUTABLE has changed.
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SET(SWIG_DIR SWIG_DIR-NOTFOUND)
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FIND_PATH(SWIG_DIR swig.swg PATHS ${SWIG_swiglib_output})
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IF(SWIG_DIR)
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SET(SWIG_USE_FILE ${CMAKE_ROOT}/Modules/UseSWIG.cmake)
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EXECUTE_PROCESS(COMMAND ${SWIG_EXECUTABLE} -version
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OUTPUT_VARIABLE SWIG_version_output
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ERROR_VARIABLE SWIG_version_output
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RESULT_VARIABLE SWIG_version_result)
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IF(SWIG_version_result)
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MESSAGE(SEND_ERROR "Command \"${SWIG_EXECUTABLE} -version\" failed with output:\n${SWIG_version_output}")
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ELSE(SWIG_version_result)
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STRING(REGEX REPLACE ".*SWIG Version[^0-9.]*\([0-9.]+\).*" "\\1"
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SWIG_version_output "${SWIG_version_output}")
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SET(SWIG_VERSION ${SWIG_version_output} CACHE STRING "Swig version" FORCE)
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ENDIF(SWIG_version_result)
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ENDIF(SWIG_DIR)
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ENDIF(SWIG_swiglib_result)
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ENDIF(SWIG_EXECUTABLE)
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INCLUDE(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(SWIG REQUIRED_VARS SWIG_EXECUTABLE SWIG_DIR
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VERSION_VAR SWIG_VERSION )
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