2014-03-09 19:55:02 +08:00
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# Configure libudev environment
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#
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# UDEV_FOUND - system has a libudev
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# UDEV_INCLUDE_DIR - where to find header files
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# UDEV_LIBRARIES - the libraries to link against udev
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# UDEV_STABLE - it's true when is the version greater or equals to 143 - version when the libudev was stabilized in its API
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#
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# copyright (c) 2011 Petr Vanek <petr@scribus.info>
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# Redistribution and use of this file is allowed according to the terms of the BSD license.
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#
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FIND_PATH(
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UDEV_INCLUDE_DIR
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libudev.h
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/usr/include
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/usr/local/include
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${UDEV_PATH_INCLUDES}
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)
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FIND_LIBRARY(
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UDEV_LIBRARIES
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NAMES udev libudev
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PATHS ${ADDITIONAL_LIBRARY_PATHS}
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${UDEV_PATH_LIB}
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)
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IF (UDEV_LIBRARIES AND UDEV_INCLUDE_DIR)
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SET(UDEV_FOUND "YES")
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execute_process(COMMAND pkg-config --atleast-version=143 libudev RESULT_VARIABLE UDEV_STABLE)
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# retvale is 0 of the condition is "true" so we need to negate the value...
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if (UDEV_STABLE)
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2015-04-01 10:08:23 +08:00
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set(UDEV_STABLE 0)
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2014-03-09 19:55:02 +08:00
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else (UDEV_STABLE)
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2015-04-01 10:08:23 +08:00
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set(UDEV_STABLE 1)
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2014-03-09 19:55:02 +08:00
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endif (UDEV_STABLE)
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message(STATUS "libudev stable: ${UDEV_STABLE}")
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ENDIF (UDEV_LIBRARIES AND UDEV_INCLUDE_DIR)
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IF (UDEV_FOUND)
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MESSAGE(STATUS "Found UDev: ${UDEV_LIBRARIES}")
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MESSAGE(STATUS " include: ${UDEV_INCLUDE_DIR}")
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ELSE (UDEV_FOUND)
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MESSAGE(STATUS "UDev not found.")
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MESSAGE(STATUS "UDev: You can specify includes: -DUDEV_PATH_INCLUDES=/opt/udev/include")
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MESSAGE(STATUS " currently found includes: ${UDEV_INCLUDE_DIR}")
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MESSAGE(STATUS "UDev: You can specify libs: -DUDEV_PATH_LIB=/opt/udev/lib")
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MESSAGE(STATUS " currently found libs: ${UDEV_LIBRARIES}")
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IF (UDev_FIND_REQUIRED)
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MESSAGE(FATAL_ERROR "Could not find UDev library")
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ENDIF (UDev_FIND_REQUIRED)
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ENDIF (UDEV_FOUND)
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2018-03-21 02:46:57 +08:00
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mark_as_advanced(UDEV_INCLUDE_DIR UDEV_LIBRARIES)
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