forked from osmocom/wireshark
132 lines
3.2 KiB
CMake
132 lines
3.2 KiB
CMake
#
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# Find the native netlink includes and library
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#
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# If they exist, differentiate between versions 1, 2 and 3.
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# Version 1 does not have netlink/version.h
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# Version 3 does have the major version number as a suffix
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# to the libnl name (libnl-3)
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#
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# NL_INCLUDE_DIRS - where to find libnl.h, etc.
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# NL_LIBRARIES - List of libraries when using libnl3.
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# NL_FOUND - True if libnl found.
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IF (NL_LIBRARIES AND NL_INCLUDE_DIRS )
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# in cache already
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SET(NL_FOUND TRUE)
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ELSE (NL_LIBRARIES AND NL_INCLUDE_DIRS )
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SET( SEARCHPATHS
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/opt/local
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/sw
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/usr
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/usr/local
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)
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find_package(PkgConfig)
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pkg_check_modules(NL3 libnl-3.0 libnl-genl-3.0 libnl-route-3.0)
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pkg_search_module(NL2 libnl-2.0)
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FIND_PATH( NL_INCLUDE_DIR
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PATH_SUFFIXES
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include/libnl3
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NAMES
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netlink/version.h
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HINTS
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"${NL3_libnl-3.0_INCLUDEDIR}"
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"${NL2_INCLUDEDIR}"
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PATHS
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$(SEARCHPATHS)
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)
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# NL version >= 2
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IF ( NL_INCLUDE_DIR )
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FIND_LIBRARY( NL_LIBRARY
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NAMES
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nl-3 nl
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PATH_SUFFIXES
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lib64 lib
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HINTS
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"${NL3_libnl-3.0_LIBDIR}"
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"${NL2_LIBDIR}"
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PATHS
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$(SEARCHPATHS)
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)
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FIND_LIBRARY( NLGENL_LIBRARY
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NAMES
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nl-genl-3 nl-genl
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PATH_SUFFIXES
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lib64 lib
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HINTS
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"${NL3_libnl-genl-3.0_LIBDIR}"
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"${NL2_LIBDIR}"
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PATHS
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$(SEARCHPATHS)
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)
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FIND_LIBRARY( NLROUTE_LIBRARY
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NAMES
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nl-route-3 nl-route
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PATH_SUFFIXES
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lib64 lib
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HINTS
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"${NL3_libnl-route-3.0_LIBDIR}"
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"${NL2_LIBDIR}"
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PATHS
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$(SEARCHPATHS)
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)
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#
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# If we don't have all of those libraries, we can't use libnl.
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#
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IF ( NOT NLGENL_LIBRARY AND NOT NLROUTE_LIBRARY )
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SET( NL_LIBRARY NOTFOUND )
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ENDIF ( NOT NLGENL_LIBRARY AND NOT NLROUTE_LIBRARY )
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IF( NL_LIBRARY )
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STRING(REGEX REPLACE ".*nl-([^.,;]*).*" "\\1" NLSUFFIX ${NL_LIBRARY})
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IF ( NLSUFFIX )
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SET( HAVE_LIBNL3 1 )
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ELSE ( NLSUFFIX )
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SET( HAVE_LIBNL2 1 )
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ENDIF (NLSUFFIX )
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SET( HAVE_LIBNL 1 )
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ENDIF( NL_LIBRARY )
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ELSE( NL_INCLUDE_DIR )
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# NL version 1 ?
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pkg_search_module(NL1 libnl-1)
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FIND_PATH( NL_INCLUDE_DIR
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NAMES
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netlink/netlink.h
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HINTS
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"${NL1_INCLUDEDIR}"
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PATHS
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$(SEARCHPATHS)
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)
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FIND_LIBRARY( NL_LIBRARY
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NAMES
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nl
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PATH_SUFFIXES
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lib64 lib
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HINTS
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"${NL1_LIBDIR}"
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PATHS
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$(SEARCHPATHS)
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)
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if ( NL_INCLUDE_DIR )
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SET( HAVE_LIBNL1 1 )
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ENDIF ( NL_INCLUDE_DIR )
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ENDIF( NL_INCLUDE_DIR )
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ENDIF(NL_LIBRARIES AND NL_INCLUDE_DIRS)
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# MESSAGE(STATUS "LIB Found: ${NL_LIBRARY}, Suffix: ${NLSUFFIX}\n 1:${HAVE_LIBNL1}, 2:${HAVE_LIBNL2}, 3:${HAVE_LIBNL3}.")
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# handle the QUIETLY and REQUIRED arguments and set NL_FOUND to TRUE if
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# all listed variables are TRUE
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INCLUDE(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(NL DEFAULT_MSG NL_LIBRARY NL_INCLUDE_DIR)
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IF(NL_FOUND)
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SET( NL_LIBRARIES ${NLGENL_LIBRARY} ${NLROUTE_LIBRARY} ${NL_LIBRARY} )
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SET( NL_INCLUDE_DIRS ${NL_INCLUDE_DIR})
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ELSE()
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SET( NL_LIBRARIES )
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SET( NL_INCLUDE_DIRS )
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ENDIF()
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MARK_AS_ADVANCED( NL_LIBRARIES NL_INCLUDE_DIRS )
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