curl/CMake/FindNGTCP2.cmake
Viktor Szakats 65f5caee05
cmake: tidy up Find modules
Smoothen out minor differences between Find modules.

- brotli, nghttp2: drop redundant `FOUND_VAR` specifiers from
  `find_package_handle_standard_args()` calls.
  This function sets both `<NAME_UPPER>_FOUND` and `<NAME>_FOUND`
  by default.

- brotli: set result vars only when found.

- brotli: add missing `mark_as_advanced()` call.

- brotli: delete custom fail message.

- mbedtls, bearssl: use `REQUIRED_VARS` instead of `DEFAULT_MSG`.

- msh3, quiche: set `<NAME>_VERSION` (via pkg-config).

- wolfssl: also use `PC_WOLFSSL_INCLUDEDIR`, `PC_WOLFSSL_LIBDIR`
  as hints.

- libpsl, libssh2, zstd: clear temporary variables used for version
  detection.

- gss, msh3, nghttp2, nghttp3, ngtcp2, quiche, zstd: fix to apply
  `mark_as_advanced()` to internal variables only.

Closes #14538
2024-08-14 12:09:33 +02:00

106 lines
3.3 KiB
CMake

#***************************************************************************
# _ _ ____ _
# 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
#
###########################################################################
# 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 ngtcp2 library names
# NGTCP2_VERSION Version of ngtcp2
if(CURL_USE_PKGCONFIG)
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(CURL_USE_PKGCONFIG)
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_INCLUDE_DIR
NGTCP2_LIBRARY
VERSION_VAR
NGTCP2_VERSION
HANDLE_COMPONENTS
)
if(NGTCP2_FOUND)
set(NGTCP2_INCLUDE_DIRS ${NGTCP2_INCLUDE_DIR})
set(NGTCP2_LIBRARIES ${NGTCP2_LIBRARY} ${NGTCP2_CRYPTO_LIBRARY})
endif()
mark_as_advanced(NGTCP2_INCLUDE_DIR NGTCP2_LIBRARY NGTCP2_CRYPTO_LIBRARY)