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# See if we need to link the socket library
include(CheckLibraryExists)
include(CheckSymbolExists)
check_library_exists("socket" getsockname "" VTK_HAVE_LIBSOCKET)
if(NOT DEFINED VTK_HAVE_GETSOCKNAME_WITH_SOCKLEN_T)
set(VTK_GETSOCKNAME_LIBS)
message(STATUS "Checking for getsockname with socklen_t")
try_compile(VTK_HAVE_GETSOCKNAME_WITH_SOCKLEN_T_COMPILED
${CMAKE_CURRENT_BINARY_DIR}/CMakeTmp/SocklenT
${CMAKE_CURRENT_SOURCE_DIR}/vtkTestSocklenT.cxx
CMAKE_FLAGS "-DLINK_LIBRARIES:STRING=${VTK_GETSOCKNAME_LIBS}"
OUTPUT_VARIABLE OUTPUT)
if(VTK_HAVE_GETSOCKNAME_WITH_SOCKLEN_T_COMPILED)
set(vtk_getsockname_with_socklen_t_detection "success")
set(vtk_have_getsockname_with_socklen_t 1)
else()
set(vtk_getsockname_with_socklen_t_detection "failed")
set(vtk_have_getsockname_with_socklen_t 0)
endif()
message(STATUS "Checking for getsockname with socklen_t -- ${vtk_have_getsockname_with_socklen_t}")
set(VTK_HAVE_GETSOCKNAME_WITH_SOCKLEN_T ${vtk_have_getsockname_with_socklen_t}
CACHE INTERNAL "Support for getsockname with socklen_t")
file(APPEND "${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log"
"Determining if getsockname accepts socklen_t type "
"completed with the following output:\n"
"${OUTPUT}\n")
endif()
# e.g. IBM BlueGene/L doesn't have SO_REUSEADDR, because "setsockopt is not needed for
# BlueGene/L applications" according to the BlueGene/L Application Development handbook
check_symbol_exists(SO_REUSEADDR "sys/types.h;sys/socket.h" VTK_HAVE_SO_REUSEADDR)
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