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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
#[=======================================================================[.rst:
FindNGTCP2
----------
Find the ngtcp2 library
This module accepts optional COMPONENTS to control the crypto library (these are
mutually exclusive)::
quictls, LibreSSL: Use libngtcp2_crypto_quictls
BoringSSL, AWS-LC: Use libngtcp2_crypto_boringssl
wolfSSL: Use libngtcp2_crypto_wolfssl
GnuTLS: Use libngtcp2_crypto_gnutls
Result Variables
^^^^^^^^^^^^^^^^
``NGTCP2_FOUND``
System has ngtcp2
``NGTCP2_INCLUDE_DIRS``
The ngtcp2 include directories.
``NGTCP2_LIBRARIES``
The libraries needed to use ngtcp2
``NGTCP2_VERSION``
version of ngtcp2.
#]=======================================================================]
if(UNIX)
find_package(PkgConfig QUIET)
pkg_search_module(PC_NGTCP2 libngtcp2)
endif()
find_path(NGTCP2_INCLUDE_DIR ngtcp2/ngtcp2.h
HINTS
${PC_NGTCP2_INCLUDEDIR}
${PC_NGTCP2_INCLUDE_DIRS}
)
find_library(NGTCP2_LIBRARY NAMES ngtcp2
HINTS
${PC_NGTCP2_LIBDIR}
${PC_NGTCP2_LIBRARY_DIRS}
)
if(PC_NGTCP2_VERSION)
set(NGTCP2_VERSION ${PC_NGTCP2_VERSION})
endif()
if(NGTCP2_FIND_COMPONENTS)
set(NGTCP2_CRYPTO_BACKEND "")
foreach(component IN LISTS NGTCP2_FIND_COMPONENTS)
if(component MATCHES "^(BoringSSL|quictls|wolfSSL|GnuTLS)")
if(NGTCP2_CRYPTO_BACKEND)
message(FATAL_ERROR "NGTCP2: Only one crypto library can be selected")
endif()
set(NGTCP2_CRYPTO_BACKEND ${component})
endif()
endforeach()
if(NGTCP2_CRYPTO_BACKEND)
string(TOLOWER "ngtcp2_crypto_${NGTCP2_CRYPTO_BACKEND}" _crypto_library)
if(UNIX)
pkg_search_module(PC_${_crypto_library} lib${_crypto_library})
endif()
find_library(${_crypto_library}_LIBRARY
NAMES
${_crypto_library}
HINTS
${PC_${_crypto_library}_LIBDIR}
${PC_${_crypto_library}_LIBRARY_DIRS}
)
if(${_crypto_library}_LIBRARY)
set(NGTCP2_${NGTCP2_CRYPTO_BACKEND}_FOUND TRUE)
set(NGTCP2_CRYPTO_LIBRARY ${${_crypto_library}_LIBRARY})
endif()
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(NGTCP2
REQUIRED_VARS
NGTCP2_LIBRARY
NGTCP2_INCLUDE_DIR
VERSION_VAR NGTCP2_VERSION
HANDLE_COMPONENTS
)
if(NGTCP2_FOUND)
set(NGTCP2_LIBRARIES ${NGTCP2_LIBRARY} ${NGTCP2_CRYPTO_LIBRARY})
set(NGTCP2_INCLUDE_DIRS ${NGTCP2_INCLUDE_DIR})
endif()
mark_as_advanced(NGTCP2_INCLUDE_DIRS NGTCP2_LIBRARIES)
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