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45 lines
1.6 KiB
CMake
45 lines
1.6 KiB
CMake
# - Try to find Flex
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# Once done this will define
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#
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# FLEX_FOUND - system has Flex
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# FLEX_EXECUTABLE - path of the flex executable
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# FLEX_VERSION - the version string, like "2.5.31"
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#
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# The minimum required version of Flex can be specified using the
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# standard syntax, e.g. find_package(Flex 2.5)
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# Copyright (c) 2008, Jakob Petsovits, <jpetso@gmx.at>
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#
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# Redistribution and use is allowed according to the terms of the BSD license.
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
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IF(WIN32)
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# Store CMAKE_MODULE_PATH so that the cmake supplied FindFLEX.cmake is
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# used since cmake FIND_PACKAGE is case insensitive on Windows
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SET(_kde_cmake_module_path_back ${CMAKE_MODULE_PATH})
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SET(CMAKE_MODULE_PATH)
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FIND_PACKAGE(FLEX)
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SET(CMAKE_MODULE_PATH ${_kde_cmake_module_path_back})
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SET(_kde_cmake_module_path_back)
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ELSE(WIN32)
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FIND_PROGRAM(FLEX_EXECUTABLE NAMES flex)
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FIND_PATH(FLEX_INCLUDE_DIR FlexLexer.h )
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FIND_LIBRARY(FLEX_LIBRARY fl)
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IF(FLEX_EXECUTABLE AND NOT FLEX_VERSION)
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EXECUTE_PROCESS(COMMAND ${FLEX_EXECUTABLE} --version
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OUTPUT_VARIABLE _FLEX_VERSION_OUTPUT
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)
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STRING (REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" _FLEX_VERSION "${_FLEX_VERSION_OUTPUT}")
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SET(FLEX_VERSION "${_FLEX_VERSION}" CACHE STRING "Version number of Flex" FORCE)
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ENDIF(FLEX_EXECUTABLE AND NOT FLEX_VERSION)
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INCLUDE(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(Flex REQUIRED_VARS FLEX_EXECUTABLE
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VERSION_VAR FLEX_VERSION )
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MARK_AS_ADVANCED(FLEX_INCLUDE_DIR FLEX_LIBRARY FLEX_EXECUTABLE)
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ENDIF(WIN32)
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