# - try to find the udev library
#
# Cache Variables: (probably not for direct use in your Scripts)
#  UDEV_INCLUDE_DIR
#  UDEV_SOURCE_DIR
#  UDEV_LIBRARY
#
# Non-cache variables you might use in your CMakeLists.txt:
#  UDEV_FOUND
#  UDEV_INCLUDE_DIRS
#  UDEV_LIBRARIES
#
# Requires these CMake modules:
#  FindPackageHandleStandardArgs (known included with CMake >=2.6.2)
#
# Original Author:
# 2014 Kevin M. Godby <kevin@godby.org>
#
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)

set(UDEV_ROOT_DIR
        "${UDEV_ROOT_DIR}"
        CACHE
        PATH
        "Directory to search for udev")

find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
    pkg_check_modules(PC_LIBUDEV libudev)
endif()

find_library(UDEV_LIBRARY
        NAMES
        udev
        PATHS
        ${PC_LIBUDEV_LIBRARY_DIRS}
        ${PC_LIBUDEV_LIBDIR}
        HINTS
        "${UDEV_ROOT_DIR}"
        PATH_SUFFIXES
        lib
        )

get_filename_component(_libdir "${UDEV_LIBRARY}" PATH)

find_path(UDEV_INCLUDE_DIR
        NAMES
        libudev.h
        PATHS
        ${PC_LIBUDEV_INCLUDE_DIRS}
        ${PC_LIBUDEV_INCLUDEDIR}
        HINTS
        "${_libdir}"
        "${_libdir}/.."
        "${UDEV_ROOT_DIR}"
        PATH_SUFFIXES
        include
        )

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(udev
        DEFAULT_MSG
        UDEV_LIBRARY
        UDEV_INCLUDE_DIR
        )

if(udev_FOUND)
    list(APPEND UDEV_LIBRARIES ${UDEV_LIBRARY})
    list(APPEND UDEV_INCLUDE_DIRS ${UDEV_INCLUDE_DIR})
    mark_as_advanced(UDEV_ROOT_DIR)
endif()

mark_as_advanced(UDEV_INCLUDE_DIR
        UDEV_LIBRARY)