#
# $Id$
#
# - Find libnl
# Find the native LIBNL includes and library
#
#  LIBNL_INCLUDE_DIRS - where to find libnl.h, etc.
#  LIBNL_LIBRARIES    - List of libraries when using libnl3.
#  LIBNL_FOUND        - True if libnl found.

FIND_PATH(
    LIBNL_INCLUDE_DIR
  NAMES
    netlink/netlink.h
  PATHS
    /opt/local/include
    /sw/include
    /usr/include
    /usr/local/include
  PATH_SUFFIXES
    libnl3
)

SET(LIBNL_NAMES nl-3)
FIND_LIBRARY(LIBNL_LIBRARY NAMES ${LIBNL_NAMES} )
FIND_LIBRARY(LIBNLGENL_LIBRARY NAMES nl-genl-3 )
FIND_LIBRARY(LIBNLROUTE_LIBRARY NAMES nl-route-3 )

IF(NOT LIBNL_FOUND)
  FIND_PATH(LIBNL_INCLUDE_DIR netlink/netlink.h /usr/include/)
  SET(LIBNL_NAMES nl)
  FIND_LIBRARY(LIBNL_LIBRARY NAMES ${LIBNL_NAMES} )
  FIND_LIBRARY(LIBNLGENL_LIBRARY NAMES nl-genl )
  FIND_LIBRARY(LIBNLROUTE_LIBRARY NAMES nl-route )
ENDIF()

# handle the QUIETLY and REQUIRED arguments and set LIBNL_FOUND to TRUE if
# all listed variables are TRUE
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBNL DEFAULT_MSG LIBNL_LIBRARY LIBNL_INCLUDE_DIRS)

IF(LIBNL_FOUND)
  SET( LIBNL_LIBRARIES ${LIBNL_LIBRARY} ${LIBNLGENL_LIBRARY} ${LIBNLROUTE_LIBRARY})
  SET( LIBNL_INCLUDE_DIRS ${LIBNL_INCLUDE_DIR})
ELSE()
  SET( LIBNL_LIBRARIES )
  SET( LIBNL_INCLUDE_DIRS )
ENDIF()

MARK_AS_ADVANCED( LIBNL_LIBRARIES LIBNL_INCLUDE_DIRS )