#
# $Id$
#
# - Find netlink
# Find the native netlink includes and library
#
#  NL_INCLUDE_DIRS - where to find libnl.h, etc.
#  NL_LIBRARIES    - List of libraries when using libnl3.
#  NL_FOUND        - True if libnl found.

SET( SEARCHPATHS
    /opt/local
    /sw
    /usr
    /usr/local
)

FIND_PATH( NL_INCLUDE_DIR
  PATH_SUFFIXES
    include/libnl3
  NAMES
    netlink/version.h netlink/netlink.h
  PATHS
    $(SEARCHPATHS)
)

FIND_LIBRARY( NL_LIBRARY
  NAMES
    nl-3 nl
  PATH_SUFFIXES
    lib64 lib
  PATHS
    $(SEARCHPATHS)
)

FIND_LIBRARY( NLGENL_LIBRARY
  NAMES
    nl-genl-3 nl-genl
  PATH_SUFFIXES
    lib64 lib
  PATHS
    $(SEARCHPATHS)
)

FIND_LIBRARY( NLROUTE_LIBRARY
  NAMES
    nl-route-3 nl-route
  PATH_SUFFIXES
    lib64 lib
  PATHS
    $(SEARCHPATHS)
)

# handle the QUIETLY and REQUIRED arguments and set NL_FOUND to TRUE if
# all listed variables are TRUE
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(NL DEFAULT_MSG NL_LIBRARY NL_INCLUDE_DIR)

IF(NL_FOUND)
  SET( NL_LIBRARIES ${NLGENL_LIBRARY} ${NLROUTE_LIBRARY} ${NL_LIBRARY} )
  SET( NL_INCLUDE_DIRS ${NL_INCLUDE_DIR})
# FIXME: Differentiate between libnl versions
  SET( HAVE_LIBNL3 1 )
ELSE()
  SET( NL_LIBRARIES )
  SET( NL_INCLUDE_DIRS )
ENDIF()

MARK_AS_ADVANCED( NL_LIBRARIES NL_INCLUDE_DIRS )