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745b56f58c
No need to explain this over and over again. While at it, do some other minor cleanups to whitespace and comments (i.e. delete them).
55 lines
1.5 KiB
CMake
55 lines
1.5 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#.rst:
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# FindGnuplot
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# -----------
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#
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# this module looks for gnuplot
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#
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#
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#
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# Once done this will define
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#
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# ::
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#
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# GNUPLOT_FOUND - system has Gnuplot
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# GNUPLOT_EXECUTABLE - the Gnuplot executable
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# GNUPLOT_VERSION_STRING - the version of Gnuplot found (since CMake 2.8.8)
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#
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#
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#
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# GNUPLOT_VERSION_STRING will not work for old versions like 3.7.1.
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include(${CMAKE_CURRENT_LIST_DIR}/FindCygwin.cmake)
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find_program(GNUPLOT_EXECUTABLE
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NAMES
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gnuplot
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pgnuplot
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wgnupl32
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PATHS
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${CYGWIN_INSTALL_PATH}/bin
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)
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if (GNUPLOT_EXECUTABLE)
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execute_process(COMMAND "${GNUPLOT_EXECUTABLE}" --version
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OUTPUT_VARIABLE GNUPLOT_OUTPUT_VARIABLE
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ERROR_QUIET
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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string(REGEX REPLACE "^gnuplot ([0-9\\.]+)( patchlevel )?" "\\1." GNUPLOT_VERSION_STRING "${GNUPLOT_OUTPUT_VARIABLE}")
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string(REGEX REPLACE "\\.$" "" GNUPLOT_VERSION_STRING "${GNUPLOT_VERSION_STRING}")
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unset(GNUPLOT_OUTPUT_VARIABLE)
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endif()
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# for compatibility
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set(GNUPLOT ${GNUPLOT_EXECUTABLE})
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(Gnuplot
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REQUIRED_VARS GNUPLOT_EXECUTABLE
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VERSION_VAR GNUPLOT_VERSION_STRING)
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mark_as_advanced( GNUPLOT_EXECUTABLE )
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