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8c27911960
fixes overlinking in case the symbol is provided by the c library and a Debian package lintian warning Signed-off-by: Ivailo Monev <xakepa10@laimg.moc>
51 lines
1.6 KiB
CMake
51 lines
1.6 KiB
CMake
# - Try to find resolv
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# Once done this will define
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#
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# RESOLV_FOUND - system has resolv
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# RESOLV_INCLUDES - the resolv include directory
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# RESOLV_LIBRARIES - the libraries needed to use resolv
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# RESOLV_THREAD_SAFE - resolv has thread-safe functions (res_ninit/res_nclose)
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#
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# Copyright (c) 2016-2020, Ivailo Monev, <xakepa10@gmail.com>
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#
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# Redistribution and use is allowed according to the terms of the BSD license.
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# resolv does not provide pkg-config files
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set(RESOLV_NAMES c resolv)
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find_path(RESOLV_INCLUDES
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NAMES resolv.h
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HINTS $ENV{RESOLVDIR}/include
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)
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set(RESOLV_LIBRARIES)
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foreach(name ${RESOLV_NAMES})
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if(NOT HAVE_res_ninit AND NOT HAVE_res_init)
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cmake_reset_check_state()
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set(CMAKE_REQUIRED_LIBRARIES ${name})
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katie_check_function(res_ninit "resolv.h")
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cmake_pop_check_state()
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if(NOT HAVE_res_ninit)
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cmake_reset_check_state()
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set(CMAKE_REQUIRED_LIBRARIES ${name})
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katie_check_function(res_init "resolv.h")
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cmake_pop_check_state()
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endif()
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if(HAVE_res_ninit OR HAVE_res_init)
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find_library(RESOLV_LIBRARIES
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NAMES ${name}
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HINTS $ENV{RESOLVDIR}/lib
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)
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endif()
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endif()
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endforeach()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Resolv
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REQUIRED_VARS RESOLV_LIBRARIES RESOLV_INCLUDES
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)
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set(RESOLV_THREAD_SAFE "${HAVE_res_ninit}" CACHE BOOL "resolv has thread-safe functions (res_ninit/res_nclose)")
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mark_as_advanced(RESOLV_INCLUDES RESOLV_LIBRARIES RESOLV_THREAD_SAFE)
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