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105 lines
3.4 KiB
105 lines
3.4 KiB
#[=======================================================================[.rst:
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FindLibunbound
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--------------
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Find the Libunbound library
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Imported targets
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^^^^^^^^^^^^^^^^
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This module defines the following :prop_tgt:`IMPORTED` targets:
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``Libunbound::Libunbound``
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The Libunbound library, if found.
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Result variables
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^^^^^^^^^^^^^^^^
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This module will set the following variables in your project:
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``Libunbound_FOUND``
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If false, do not try to use Libunbound.
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``LIBUNBOUND_INCLUDE_DIR``
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where to find libunbound headers.
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``LIBUNBOUND_LIBRARIES``
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the libraries needed to use Libunbound.
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``LIBUNBOUND_VERSION``
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the version of the Libunbound library found
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#]=======================================================================]
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find_package(PkgConfig QUIET)
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if (PKG_CONFIG_FOUND)
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pkg_check_modules(PkgLibunbound IMPORTED_TARGET GLOBAL QUIET libunbound)
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endif ()
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if (PkgLibunbound_FOUND)
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set(LIBUNBOUND_INCLUDE_DIR ${PkgLibunbound_INCLUDE_DIRS} CACHE FILEPATH "libunbound include path")
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set(LIBUNBOUND_LIBRARIES ${PkgLibunbound_LIBRARIES} CACHE STRING "libunbound libraries")
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set(LIBUNBOUND_VERSION ${PkgLibunbound_VERSION})
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add_library(Libunbound::Libunbound ALIAS PkgConfig::PkgLibunbound)
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set(Libunbound_FOUND ON)
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else ()
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find_path(LIBUNBOUND_INCLUDE_DIR unbound.h
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HINTS
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"${LIBUNBOUND_DIR}"
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"${LIBUNBOUND_DIR}/include"
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)
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find_library(LIBUNBOUND_LIBRARY NAMES unbound
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HINTS
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"${LIBUNBOUND_DIR}"
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"${LIBUNBOUND_DIR}/lib"
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)
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set(_LIBUNBOUND_LIBRARIES "")
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if (UNIX)
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find_package(Threads REQUIRED)
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find_package(OpenSSL REQUIRED)
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list(APPEND _LIBUNBOUND_LIBRARIES "${CMAKE_THREAD_LIBS_INIT}")
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list(APPEND _LIBUNBOUND_LIBRARIES "${OPENSSL_LIBRARIES}")
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endif()
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if (LIBUNBOUND_INCLUDE_DIR AND LIBUNBOUND_LIBRARY)
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if (NOT TARGET Libunbound::Libunbound)
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add_library(Libunbound::Libunbound UNKNOWN IMPORTED)
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set_target_properties(Libunbound::Libunbound PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${LIBUNBOUND_INCLUDE_DIR}"
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IMPORTED_LINK_INTERFACE_LANGUAGES "C"
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IMPORTED_LOCATION "${LIBUNBOUND_LIBRARY}"
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)
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if(UNIX AND TARGET Threads::Threads)
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set_property(TARGET Libunbound::Libunbound APPEND PROPERTY
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INTERFACE_LINK_LIBRARIES Threads::Threads)
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endif ()
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if(UNIX AND TARGET OpenSSL::SSL)
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set_property(TARGET Libunbound::Libunbound APPEND PROPERTY
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INTERFACE_LINK_LIBRARIES OpenSSL::SSL)
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endif ()
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if(UNIX AND TARGET OpenSSL::Crypto)
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set_property(TARGET Libunbound::Libunbound APPEND PROPERTY
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INTERFACE_LINK_LIBRARIES OpenSSL::Crypto)
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endif ()
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endif ()
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if (NOT LIBUNBOUND_VERSION AND LIBUNBOUND_INCLUDE_DIR AND EXISTS "${LIBUNBOUND_INCLUDE_DIR}/unbound.h")
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file(STRINGS "${LIBUNBOUND_INCLUDE_DIR}/unbound.h" LIBUNBOUND_H REGEX "^#define UNBOUND_VERSION_M[A-Z]+")
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string(REGEX REPLACE "^.*MAJOR ([0-9]+).*MINOR ([0-9]+).*MICRO ([0-9]+).*$" "\\1.\\2.\\3" LIBUNBOUND_VERSION "${LIBUNBOUND_H}")
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endif ()
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endif ()
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list(APPEND _LIBUNBOUND_LIBRARIES "${LIBUNBOUND_LIBRARY}")
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set(LIBUNBOUND_LIBRARIES ${_LIBUNBOUND_LIBRARIES} CACHE STRING "libunbound libraries")
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Libunbound
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REQUIRED_VARS LIBUNBOUND_LIBRARIES LIBUNBOUND_INCLUDE_DIR
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VERSION_VAR LIBUNBOUND_VERSION
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)
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endif ()
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mark_as_advanced(LIBUNBOUND_INCLUDE_DIR LIBUNBOUND_LIBRARIES LIBUNBOUND_LIBRARY)
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