wireshark/cmake/modules/FindNL.cmake

101 lines
2.3 KiB
CMake

#
# $Id$
#
# Find the native netlink includes and library
#
# If they exist, differentiate between versions 1,2 and 3.
# Version 1 does not have netlink/version.h
# Version 3 does have the major version number as a suffix
# to the libnl name (libnl-3)
#
# NL_INCLUDE_DIRS - where to find libnl.h, etc.
# NL_LIBRARIES - List of libraries when using libnl3.
# NL_FOUND - True if libnl found.
IF (NL_LIBRARIES AND NL_INCLUDE_DIRS )
# in cache already
SET(NL_FOUND TRUE)
ELSE (NL_LIBRARIES AND NL_INCLUDE_DIRS )
SET( SEARCHPATHS
/opt/local
/sw
/usr
/usr/local
)
FIND_PATH( NL_INCLUDE_DIR
PATH_SUFFIXES
include/libnl3
NAMES
netlink/version.h
PATHS
$(SEARCHPATHS)
)
# NL version >= 2
IF ( NL_INCLUDE_DIR )
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)
)
STRING(REGEX REPLACE ".*nl-([^.,;]*).*" "\\1" NLSUFFIX ${NL_LIBRARY})
IF ( NLSUFFIX )
SET( HAVE_LIBNL3 1 )
ELSE ( NLSUFFIX )
SET( HAVE_LIBNL2 1 )
ENDIF (NLSUFFIX )
ELSE( NL_INCLUDE_DIR )
# NL version 1 ?
FIND_PATH( NL_INCLUDE_DIR
NAMES
netlink/netlink.h
PATHS
$(SEARCHPATHS)
)
FIND_LIBRARY( NL_LIBRARY
NAMES
nl
PATH_SUFFIXES
lib64 lib
PATHS
$(SEARCHPATHS)
)
SET( HAVE_LIBNL1 1 )
ENDIF( NL_INCLUDE_DIR )
ENDIF(NL_LIBRARIES AND NL_INCLUDE_DIRS)
# MESSAGE(STATUS "LIB Found: ${NL_LIBRARY}, Suffix: ${NLSUFFIX}\n 1:${HAVE_LIBNL1}, 2:${HAVE_LIBNL2}, 3:${HAVE_LIBNL3}.")
# 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})
ELSE()
SET( NL_LIBRARIES )
SET( NL_INCLUDE_DIRS )
ENDIF()
MARK_AS_ADVANCED( NL_LIBRARIES NL_INCLUDE_DIRS )