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#***************************************************************************
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# _ _ ____ _
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# Project ___| | | | _ \| |
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# / __| | | | |_) | |
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# | (__| |_| | _ <| |___
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# \___|\___/|_| \_\_____|
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#
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# Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
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#
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# This software is licensed as described in the file COPYING, which
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# you should have received as part of this distribution. The terms
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# are also available at https://curl.se/docs/copyright.html.
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#
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# You may opt to use, copy, modify, merge, publish, distribute and/or sell
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# copies of the Software, and permit persons to whom the Software is
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# furnished to do so, under the terms of the COPYING file.
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#
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# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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# KIND, either express or implied.
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#
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###########################################################################
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#[=======================================================================[.rst:
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FindNGTCP2
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----------
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Find the ngtcp2 library
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This module accepts optional COMPONENTS to control the crypto library (these are
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mutually exclusive)::
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OpenSSL: Use libngtcp2_crypto_openssl
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GnuTLS: Use libngtcp2_crypto_gnutls
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Result Variables
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^^^^^^^^^^^^^^^^
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``NGTCP2_FOUND``
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System has ngtcp2
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``NGTCP2_INCLUDE_DIRS``
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The ngtcp2 include directories.
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``NGTCP2_LIBRARIES``
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The libraries needed to use ngtcp2
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``NGTCP2_VERSION``
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version of ngtcp2.
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#]=======================================================================]
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if(UNIX)
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find_package(PkgConfig QUIET)
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pkg_search_module(PC_NGTCP2 libngtcp2)
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endif()
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find_path(NGTCP2_INCLUDE_DIR ngtcp2/ngtcp2.h
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HINTS
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${PC_NGTCP2_INCLUDEDIR}
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${PC_NGTCP2_INCLUDE_DIRS}
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)
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find_library(NGTCP2_LIBRARY NAMES ngtcp2
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HINTS
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${PC_NGTCP2_LIBDIR}
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${PC_NGTCP2_LIBRARY_DIRS}
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)
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if(PC_NGTCP2_VERSION)
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set(NGTCP2_VERSION ${PC_NGTCP2_VERSION})
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endif()
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if(NGTCP2_FIND_COMPONENTS)
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set(NGTCP2_CRYPTO_BACKEND "")
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foreach(component IN LISTS NGTCP2_FIND_COMPONENTS)
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if(component MATCHES "^(OpenSSL|GnuTLS)")
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if(NGTCP2_CRYPTO_BACKEND)
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message(FATAL_ERROR "NGTCP2: Only one crypto library can be selected")
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endif()
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set(NGTCP2_CRYPTO_BACKEND ${component})
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endif()
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endforeach()
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if(NGTCP2_CRYPTO_BACKEND)
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string(TOLOWER "ngtcp2_crypto_${NGTCP2_CRYPTO_BACKEND}" _crypto_library)
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if(UNIX)
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pkg_search_module(PC_${_crypto_library} lib${_crypto_library})
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endif()
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find_library(${_crypto_library}_LIBRARY
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NAMES
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${_crypto_library}
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HINTS
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${PC_${_crypto_library}_LIBDIR}
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${PC_${_crypto_library}_LIBRARY_DIRS}
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)
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if(${_crypto_library}_LIBRARY)
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set(NGTCP2_${NGTCP2_CRYPTO_BACKEND}_FOUND TRUE)
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set(NGTCP2_CRYPTO_LIBRARY ${${_crypto_library}_LIBRARY})
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endif()
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endif()
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(NGTCP2
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REQUIRED_VARS
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NGTCP2_LIBRARY
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NGTCP2_INCLUDE_DIR
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VERSION_VAR NGTCP2_VERSION
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HANDLE_COMPONENTS
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)
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if(NGTCP2_FOUND)
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set(NGTCP2_LIBRARIES ${NGTCP2_LIBRARY} ${NGTCP2_CRYPTO_LIBRARY})
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set(NGTCP2_INCLUDE_DIRS ${NGTCP2_INCLUDE_DIR})
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endif()
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mark_as_advanced(NGTCP2_INCLUDE_DIRS NGTCP2_LIBRARIES)
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