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CMakeLists.txt
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CMakeLists.txt
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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
#
###########################################################################
# by Tetetest and Sukender (Benoit Neil)
# Note: By default this CMake build script detects the version of some
# dependencies using `check_symbol_exists`. Those checks do not work in
# the case that both CURL and its dependency are included as sub-projects
# in a larger build using `FetchContent`. To support that case, additional
# variables may be defined by the parent project, ideally in the "extra"
# find package redirect file:
# https://cmake.org/cmake/help/latest/module/FetchContent.html#integrating-with-find-package
#
# The following variables are available:
# HAVE_SSL_SET0_WBIO: `SSL_set0_wbio` present in OpenSSL/wolfSSL
# HAVE_OPENSSL_SRP: `SSL_CTX_set_srp_username` present in OpenSSL/wolfSSL
# HAVE_GNUTLS_SRP: `gnutls_srp_verifier` present in GnuTLS
# HAVE_SSL_CTX_SET_QUIC_METHOD: `SSL_CTX_set_quic_method` present in OpenSSL/wolfSSL
# HAVE_QUICHE_CONN_SET_QLOG_FD: `quiche_conn_set_qlog_fd` present in quiche
# HAVE_ECH: ECH API checks for OpenSSL, BoringSSL or wolfSSL
#
# For each of the above variables, if the variable is DEFINED (either
# to ON or OFF), the symbol detection is skipped. If the variable is
# NOT DEFINED, the symbol detection is performed.
cmake_minimum_required(VERSION 3.7...3.16 FATAL_ERROR)
message(STATUS "Using CMake version ${CMAKE_VERSION}")
# Collect command-line arguments for buildinfo.txt.
# Must reside at the top of the script to work as expected.
set(_cmake_args "")
if(NOT "$ENV{CURL_BUILDINFO}$ENV{CURL_CI}$ENV{CI}" STREQUAL "")
get_cmake_property(_cache_vars CACHE_VARIABLES)
foreach(_cache_var IN ITEMS ${_cache_vars})
get_property(_cache_var_helpstring CACHE ${_cache_var} PROPERTY HELPSTRING)
if(_cache_var_helpstring STREQUAL "No help, variable specified on the command line.")
get_property(_cache_var_type CACHE ${_cache_var} PROPERTY TYPE)
get_property(_cache_var_value CACHE ${_cache_var} PROPERTY VALUE)
if(_cache_var_type STREQUAL "UNINITIALIZED")
set(_cache_var_type)
else()
set(_cache_var_type ":${_cache_var_type}")
endif()
set(_cmake_args "${_cmake_args} -D${_cache_var}${_cache_var_type}=\"${_cache_var_value}\"")
endif()
endforeach()
endif()
function(curl_dumpvars) # Dump all defined variables with their values
message("::group::CMake Variable Dump")
get_cmake_property(_vars VARIABLES)
foreach(_var ${_vars})
message("${_var} = ${${_var}}")
endforeach()
message("::endgroup::")
endfunction()
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake;${CMAKE_MODULE_PATH}")
include(Utilities)
include(Macros)
include(CMakeDependentOption)
include(CheckCCompilerFlag)
file(STRINGS "${CMAKE_CURRENT_SOURCE_DIR}/include/curl/curlver.h" _curl_version_h_contents REGEX "#define LIBCURL_VERSION( |_NUM )")
string(REGEX MATCH "#define LIBCURL_VERSION \"[^\"]*" _curl_version ${_curl_version_h_contents})
string(REGEX REPLACE "[^\"]+\"" "" _curl_version ${_curl_version})
string(REGEX MATCH "#define LIBCURL_VERSION_NUM 0x[0-9a-fA-F]+" _curl_version_num ${_curl_version_h_contents})
string(REGEX REPLACE "[^0]+0x" "" _curl_version_num ${_curl_version_num})
unset(_curl_version_h_contents)
message(STATUS "curl version=[${_curl_version}]")
string(REGEX REPLACE "([0-9]+\.[0-9]+\.[0-9]+).+" "\\1" _curl_version_sem "${_curl_version}")
project(CURL
VERSION "${_curl_version_sem}"
LANGUAGES C)
unset(_target_flags)
if(APPLE)
set(_target_flags "${_target_flags} APPLE")
endif()
if(UNIX)
set(_target_flags "${_target_flags} UNIX")
endif()
if(BSD)
set(_target_flags "${_target_flags} BSD")
endif()
if(WIN32)
set(_target_flags "${_target_flags} WIN32")
endif()
if(WINDOWS_STORE)
set(_target_flags "${_target_flags} UWP")
endif()
if(CYGWIN)
set(_target_flags "${_target_flags} CYGWIN")
endif()
if(MSYS)
set(_target_flags "${_target_flags} MSYS")
endif()
if(CMAKE_COMPILER_IS_GNUCC)
set(_target_flags "${_target_flags} GCC")
endif()
if(MINGW)
set(_target_flags "${_target_flags} MINGW")
endif()
if(MSVC)
set(_target_flags "${_target_flags} MSVC")
endif()
if(VCPKG_TOOLCHAIN)
set(_target_flags "${_target_flags} VCPKG")
endif()
if(CMAKE_CROSSCOMPILING)
set(_target_flags "${_target_flags} CROSS")
endif()
message(STATUS "CMake platform flags:${_target_flags}")
if(CMAKE_CROSSCOMPILING)
message(STATUS "Cross-compiling: "
"${CMAKE_HOST_SYSTEM_NAME}/${CMAKE_HOST_SYSTEM_PROCESSOR} -> "
"${CMAKE_SYSTEM_NAME}/${CMAKE_SYSTEM_PROCESSOR}")
endif()
if(CMAKE_C_COMPILER_TARGET)
set(CURL_OS "\"${CMAKE_C_COMPILER_TARGET}\"")
else()
set(CURL_OS "\"${CMAKE_SYSTEM_NAME}\"")
endif()
include_directories("${PROJECT_SOURCE_DIR}/include")
if(NOT DEFINED CMAKE_UNITY_BUILD_BATCH_SIZE)
set(CMAKE_UNITY_BUILD_BATCH_SIZE 0)
endif()
# Having CMAKE_TRY_COMPILE_TARGET_TYPE set to STATIC_LIBRARY breaks certain
# 'check_function_exists()' detections (possibly more), by detecting
# non-existing features. This happens by default when using 'ios.toolchain.cmake'.
# Work it around by setting this value to `EXECUTABLE`.
if(CMAKE_TRY_COMPILE_TARGET_TYPE STREQUAL "STATIC_LIBRARY")
message(STATUS "CMAKE_TRY_COMPILE_TARGET_TYPE was found set to STATIC_LIBRARY. "
"Overriding with EXECUTABLE for feature detections to work.")
set(_cmake_try_compile_target_type_save ${CMAKE_TRY_COMPILE_TARGET_TYPE})
set(CMAKE_TRY_COMPILE_TARGET_TYPE "EXECUTABLE")
endif()
option(CURL_WERROR "Turn compiler warnings into errors" OFF)
option(PICKY_COMPILER "Enable picky compiler options" ON)
option(BUILD_CURL_EXE "Build curl executable" ON)
option(BUILD_SHARED_LIBS "Build shared libraries" ON)
option(BUILD_STATIC_LIBS "Build static libraries" OFF)
option(BUILD_STATIC_CURL "Build curl executable with static libcurl" OFF)
option(ENABLE_ARES "Enable c-ares support" OFF)
option(CURL_DISABLE_INSTALL "Disable installation targets" OFF)
if(WIN32)
option(CURL_STATIC_CRT "Build libcurl with static CRT with MSVC (/MT)" OFF)
if(CURL_STATIC_CRT AND MSVC)
set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /MT")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /MTd")
endif()
option(ENABLE_UNICODE "Use the Unicode version of the Windows API functions" OFF)
if(WINDOWS_STORE)
set(ENABLE_UNICODE ON)
endif()
if(ENABLE_UNICODE)
add_definitions("-DUNICODE" "-D_UNICODE")
if(MINGW)
add_compile_options("-municode")
endif()
endif()
list(APPEND CMAKE_REQUIRED_DEFINITIONS "-DWIN32_LEAN_AND_MEAN") # Apply to all feature checks
set(CURL_TARGET_WINDOWS_VERSION "" CACHE STRING "Minimum target Windows version as hex string")
if(CURL_TARGET_WINDOWS_VERSION)
add_definitions("-D_WIN32_WINNT=${CURL_TARGET_WINDOWS_VERSION}")
list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_WIN32_WINNT=${CURL_TARGET_WINDOWS_VERSION}") # Apply to all feature checks
endif()
# Detect actual value of _WIN32_WINNT and store as HAVE_WIN32_WINNT
curl_internal_test(HAVE_WIN32_WINNT)
if(HAVE_WIN32_WINNT)
string(REGEX MATCH ".*_WIN32_WINNT=0x[0-9a-fA-F]+" CURL_TEST_OUTPUT "${CURL_TEST_OUTPUT}")
string(REGEX REPLACE ".*_WIN32_WINNT=" "" CURL_TEST_OUTPUT "${CURL_TEST_OUTPUT}")
string(REGEX REPLACE "0x([0-9a-f][0-9a-f][0-9a-f])$" "0x0\\1" CURL_TEST_OUTPUT "${CURL_TEST_OUTPUT}") # pad to 4 digits
string(TOLOWER "${CURL_TEST_OUTPUT}" HAVE_WIN32_WINNT)
message(STATUS "Found _WIN32_WINNT=${HAVE_WIN32_WINNT}")
endif()
# Avoid storing HAVE_WIN32_WINNT in CMake cache
unset(HAVE_WIN32_WINNT CACHE)
endif()
option(CURL_LTO "Enable compiler Link Time Optimizations" OFF)
cmake_dependent_option(ENABLE_THREADED_RESOLVER "Enable threaded DNS lookup"
ON "NOT ENABLE_ARES"
OFF)
include(PickyWarnings)
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_GNU_SOURCE") # Required for sendmmsg()
endif()
option(ENABLE_DEBUG "Enable curl debug features (for developing curl itself)" OFF)
if(ENABLE_DEBUG)
message(WARNING "This curl build is Debug-enabled, do not use in production.")
endif()
option(ENABLE_CURLDEBUG "Enable TrackMemory debug feature" ${ENABLE_DEBUG})
if(MSVC)
set(ENABLE_CURLDEBUG OFF) # FIXME: TrackMemory + MSVC fails test 558 and 1330. Tested with static build, Debug mode.
endif()
if(ENABLE_DEBUG)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS "DEBUGBUILD")
endif()
if(ENABLE_CURLDEBUG)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS "CURLDEBUG")
endif()
# For debug libs and exes, add "-d" postfix
if(NOT DEFINED CMAKE_DEBUG_POSTFIX)
set(CMAKE_DEBUG_POSTFIX "-d")
endif()
set(LIB_STATIC "libcurl_static")
set(LIB_SHARED "libcurl_shared")
if(NOT BUILD_SHARED_LIBS AND NOT BUILD_STATIC_LIBS)
set(BUILD_STATIC_LIBS ON)
endif()
if(NOT BUILD_STATIC_CURL AND NOT BUILD_SHARED_LIBS)
set(BUILD_STATIC_CURL ON)
elseif(BUILD_STATIC_CURL AND NOT BUILD_STATIC_LIBS)
set(BUILD_STATIC_CURL OFF)
endif()
# Lib flavour selected for curl tool
if(BUILD_STATIC_CURL)
set(LIB_SELECTED_FOR_EXE ${LIB_STATIC})
else()
set(LIB_SELECTED_FOR_EXE ${LIB_SHARED})
endif()
# Lib flavour selected for example and test programs.
if(BUILD_SHARED_LIBS)
set(LIB_SELECTED ${LIB_SHARED})
else()
set(LIB_SELECTED ${LIB_STATIC})
endif()
# Override to force-disable or force-enable the use of pkg-config.
if(UNIX OR VCPKG_TOOLCHAIN OR (MINGW AND NOT CMAKE_CROSSCOMPILING)) # Keep in sync with CMake/curl-config.cmake.in
set(_curl_use_pkgconfig_default ON)
else()
set(_curl_use_pkgconfig_default OFF)
endif()
option(CURL_USE_PKGCONFIG "Enable pkg-config to detect dependencies" ${_curl_use_pkgconfig_default})
# Initialize variables collecting dependency libs, paths, pkg-config names.
set(CURL_LIBS "")
set(CURL_LIBDIRS "")
set(LIBCURL_PC_REQUIRES_PRIVATE "")
if(ENABLE_ARES)
set(USE_ARES 1)
find_package(Cares REQUIRED)
list(APPEND CURL_LIBS ${CARES_LIBRARIES})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libcares")
add_definitions("-DCARES_NO_DEPRECATED") # Ignore c-ares deprecation warnings
endif()
include(CurlSymbolHiding)
option(CURL_ENABLE_EXPORT_TARGET "Enable CMake export target" ON)
mark_as_advanced(CURL_ENABLE_EXPORT_TARGET)
option(CURL_DISABLE_ALTSVC "Disable alt-svc support" OFF)
mark_as_advanced(CURL_DISABLE_ALTSVC)
option(CURL_DISABLE_SRP "Disable TLS-SRP support" OFF)
mark_as_advanced(CURL_DISABLE_SRP)
option(CURL_DISABLE_COOKIES "Disable cookies support" OFF)
mark_as_advanced(CURL_DISABLE_COOKIES)
option(CURL_DISABLE_BASIC_AUTH "Disable Basic authentication" OFF)
mark_as_advanced(CURL_DISABLE_BASIC_AUTH)
option(CURL_DISABLE_BEARER_AUTH "Disable Bearer authentication" OFF)
mark_as_advanced(CURL_DISABLE_BEARER_AUTH)
option(CURL_DISABLE_DIGEST_AUTH "Disable Digest authentication" OFF)
mark_as_advanced(CURL_DISABLE_DIGEST_AUTH)
option(CURL_DISABLE_KERBEROS_AUTH "Disable Kerberos authentication" OFF)
mark_as_advanced(CURL_DISABLE_KERBEROS_AUTH)
option(CURL_DISABLE_NEGOTIATE_AUTH "Disable negotiate authentication" OFF)
mark_as_advanced(CURL_DISABLE_NEGOTIATE_AUTH)
option(CURL_DISABLE_AWS "Disable aws-sigv4" OFF)
mark_as_advanced(CURL_DISABLE_AWS)
option(CURL_DISABLE_DICT "Disable DICT" OFF)
mark_as_advanced(CURL_DISABLE_DICT)
option(CURL_DISABLE_DOH "Disable DNS-over-HTTPS" OFF)
mark_as_advanced(CURL_DISABLE_DOH)
option(CURL_DISABLE_FILE "Disable FILE" OFF)
mark_as_advanced(CURL_DISABLE_FILE)
option(CURL_DISABLE_FTP "Disable FTP" OFF)
mark_as_advanced(CURL_DISABLE_FTP)
option(CURL_DISABLE_GETOPTIONS "Disable curl_easy_options API for existing options to curl_easy_setopt" OFF)
mark_as_advanced(CURL_DISABLE_GETOPTIONS)
option(CURL_DISABLE_GOPHER "Disable Gopher" OFF)
mark_as_advanced(CURL_DISABLE_GOPHER)
option(CURL_DISABLE_HEADERS_API "Disable headers-api support" OFF)
mark_as_advanced(CURL_DISABLE_HEADERS_API)
option(CURL_DISABLE_HSTS "Disable HSTS support" OFF)
mark_as_advanced(CURL_DISABLE_HSTS)
option(CURL_DISABLE_HTTP "Disable HTTP" OFF)
mark_as_advanced(CURL_DISABLE_HTTP)
option(CURL_DISABLE_HTTP_AUTH "Disable all HTTP authentication methods" OFF)
mark_as_advanced(CURL_DISABLE_HTTP_AUTH)
option(CURL_DISABLE_IMAP "Disable IMAP" OFF)
mark_as_advanced(CURL_DISABLE_IMAP)
option(CURL_DISABLE_LDAP "Disable LDAP" OFF)
mark_as_advanced(CURL_DISABLE_LDAP)
option(CURL_DISABLE_LDAPS "Disable LDAPS" ${CURL_DISABLE_LDAP})
mark_as_advanced(CURL_DISABLE_LDAPS)
option(CURL_DISABLE_LIBCURL_OPTION "Disable --libcurl option from the curl tool" OFF)
mark_as_advanced(CURL_DISABLE_LIBCURL_OPTION)
option(CURL_DISABLE_MIME "Disable MIME support" OFF)
mark_as_advanced(CURL_DISABLE_MIME)
cmake_dependent_option(CURL_DISABLE_FORM_API "Disable form-api"
OFF "NOT CURL_DISABLE_MIME"
ON)
mark_as_advanced(CURL_DISABLE_FORM_API)
option(CURL_DISABLE_MQTT "Disable MQTT" OFF)
mark_as_advanced(CURL_DISABLE_MQTT)
option(CURL_DISABLE_BINDLOCAL "Disable local binding support" OFF)
mark_as_advanced(CURL_DISABLE_BINDLOCAL)
option(CURL_DISABLE_NETRC "Disable netrc parser" OFF)
mark_as_advanced(CURL_DISABLE_NETRC)
option(CURL_DISABLE_NTLM "Disable NTLM support" OFF)
mark_as_advanced(CURL_DISABLE_NTLM)
option(CURL_DISABLE_PARSEDATE "Disable date parsing" OFF)
mark_as_advanced(CURL_DISABLE_PARSEDATE)
option(CURL_DISABLE_POP3 "Disable POP3" OFF)
mark_as_advanced(CURL_DISABLE_POP3)
option(CURL_DISABLE_PROGRESS_METER "Disable built-in progress meter" OFF)
mark_as_advanced(CURL_DISABLE_PROGRESS_METER)
option(CURL_DISABLE_PROXY "Disable proxy support" OFF)
mark_as_advanced(CURL_DISABLE_PROXY)
option(CURL_DISABLE_IPFS "Disable IPFS" OFF)
mark_as_advanced(CURL_DISABLE_IPFS)
option(CURL_DISABLE_RTSP "Disable RTSP" OFF)
mark_as_advanced(CURL_DISABLE_SHA512_256)
option(CURL_DISABLE_SHA512_256 "Disable SHA-512/256 hash algorithm" OFF)
mark_as_advanced(CURL_DISABLE_RTSP)
option(CURL_DISABLE_SHUFFLE_DNS "Disable shuffle DNS feature" OFF)
mark_as_advanced(CURL_DISABLE_SHUFFLE_DNS)
option(CURL_DISABLE_SMB "Disable SMB" OFF)
mark_as_advanced(CURL_DISABLE_SMB)
option(CURL_DISABLE_SMTP "Disable SMTP" OFF)
mark_as_advanced(CURL_DISABLE_SMTP)
option(CURL_DISABLE_SOCKETPAIR "Disable use of socketpair for curl_multi_poll" OFF)
mark_as_advanced(CURL_DISABLE_SOCKETPAIR)
option(CURL_DISABLE_WEBSOCKETS "Disable WebSocket" OFF)
mark_as_advanced(CURL_DISABLE_WEBSOCKETS)
option(CURL_DISABLE_TELNET "Disable Telnet" OFF)
mark_as_advanced(CURL_DISABLE_TELNET)
option(CURL_DISABLE_TFTP "Disable TFTP" OFF)
mark_as_advanced(CURL_DISABLE_TFTP)
option(CURL_DISABLE_VERBOSE_STRINGS "Disable verbose strings" OFF)
mark_as_advanced(CURL_DISABLE_VERBOSE_STRINGS)
if(CURL_DISABLE_HTTP)
set(CURL_DISABLE_IPFS ON)
set(CURL_DISABLE_RTSP ON)
set(CURL_DISABLE_ALTSVC ON)
set(CURL_DISABLE_HSTS ON)
endif()
# Corresponds to HTTP_ONLY in lib/curl_setup.h
option(HTTP_ONLY "Disable all protocols except HTTP (This overrides all CURL_DISABLE_* options)" OFF)
mark_as_advanced(HTTP_ONLY)
if(HTTP_ONLY)
set(CURL_DISABLE_DICT ON)
set(CURL_DISABLE_FILE ON)
set(CURL_DISABLE_FTP ON)
set(CURL_DISABLE_GOPHER ON)
set(CURL_DISABLE_IMAP ON)
set(CURL_DISABLE_LDAP ON)
set(CURL_DISABLE_LDAPS ON)
set(CURL_DISABLE_MQTT ON)
set(CURL_DISABLE_POP3 ON)
set(CURL_DISABLE_IPFS ON)
set(CURL_DISABLE_RTSP ON)
set(CURL_DISABLE_SMB ON)
set(CURL_DISABLE_SMTP ON)
set(CURL_DISABLE_TELNET ON)
set(CURL_DISABLE_TFTP ON)
endif()
if(WINDOWS_STORE)
set(CURL_DISABLE_TELNET ON) # telnet code needs fixing to compile for UWP.
endif()
option(ENABLE_IPV6 "Enable IPv6 support" ON)
mark_as_advanced(ENABLE_IPV6)
if(ENABLE_IPV6 AND NOT WIN32)
include(CheckStructHasMember)
check_struct_has_member("struct sockaddr_in6" "sin6_addr" "netinet/in.h" HAVE_SOCKADDR_IN6_SIN6_ADDR)
check_struct_has_member("struct sockaddr_in6" "sin6_scope_id" "netinet/in.h" HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID)
if(NOT HAVE_SOCKADDR_IN6_SIN6_ADDR)
message(WARNING "struct sockaddr_in6 not available, disabling IPv6 support")
# Force the feature off as this name is used as guard macro...
set(ENABLE_IPV6 OFF CACHE BOOL "Enable IPv6 support" FORCE)
endif()
if(APPLE AND NOT ENABLE_ARES)
set(_use_core_foundation_and_core_services ON)
find_library(SYSTEMCONFIGURATION_FRAMEWORK "SystemConfiguration")
mark_as_advanced(SYSTEMCONFIGURATION_FRAMEWORK)
if(NOT SYSTEMCONFIGURATION_FRAMEWORK)
message(FATAL_ERROR "SystemConfiguration framework not found")
endif()
list(APPEND CURL_LIBS "-framework SystemConfiguration")
endif()
endif()
if(ENABLE_IPV6)
set(USE_IPV6 ON)
endif()
find_package(Perl)
option(BUILD_LIBCURL_DOCS "Build libcurl man pages" ON)
option(BUILD_MISC_DOCS "Build misc man pages (e.g. curl-config and mk-ca-bundle)" ON)
option(ENABLE_CURL_MANUAL "Build the man page for curl and enable its -M/--manual option" ON)
if(ENABLE_CURL_MANUAL OR BUILD_LIBCURL_DOCS)
if(PERL_FOUND)
set(HAVE_MANUAL_TOOLS ON)
endif()
if(NOT HAVE_MANUAL_TOOLS)
message(WARNING "Perl not found. Will not build manuals.")
endif()
endif()
# Disable warnings on Borland to avoid changing 3rd party code.
if(BORLAND)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w-")
endif()
# If we are on AIX, do the _ALL_SOURCE magic
if(CMAKE_SYSTEM_NAME STREQUAL "AIX")
add_definitions("-D_ALL_SOURCE")
endif()
# If we are on Haiku, make sure that the network library is brought in.
if(CMAKE_SYSTEM_NAME STREQUAL "Haiku")
list(APPEND CURL_LIBS "network")
endif()
# Include all the necessary files for macros
include(CMakePushCheckState)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckLibraryExists)
include(CheckSymbolExists)
include(CheckTypeSize)
include(CheckCSourceCompiles)
# Preload settings on Windows
if(WIN32)
include("${CMAKE_CURRENT_SOURCE_DIR}/CMake/Platforms/WindowsCache.cmake")
elseif(APPLE)
# Fast-track predictable feature detections
set(HAVE_EVENTFD 0)
set(HAVE_GETPASS_R 0)
set(HAVE_SENDMMSG 0)
endif()
if(ENABLE_THREADED_RESOLVER)
if(WIN32)
set(USE_THREADS_WIN32 ON)
else()
find_package(Threads REQUIRED)
set(USE_THREADS_POSIX ${CMAKE_USE_PTHREADS_INIT})
set(HAVE_PTHREAD_H ${CMAKE_USE_PTHREADS_INIT})
list(APPEND CURL_LIBS ${CMAKE_THREAD_LIBS_INIT})
endif()
endif()
# Check for all needed libraries
if(NOT WIN32 AND NOT APPLE)
check_library_exists("socket" "connect" "" HAVE_LIBSOCKET)
if(HAVE_LIBSOCKET)
set(CURL_LIBS "socket;${CURL_LIBS}")
endif()
endif()
check_function_exists("gethostname" HAVE_GETHOSTNAME)
if(WIN32)
list(APPEND CURL_LIBS "ws2_32" "bcrypt")
endif()
# Check SSL libraries
option(CURL_ENABLE_SSL "Enable SSL support" ON)
if(CURL_DEFAULT_SSL_BACKEND)
set(_valid_default_ssl_backend FALSE)
endif()
if(APPLE)
cmake_dependent_option(CURL_USE_SECTRANSP "Enable Apple OS native SSL/TLS (Secure Transport)" OFF CURL_ENABLE_SSL OFF)
endif()
if(WIN32)
cmake_dependent_option(CURL_USE_SCHANNEL "Enable Windows native SSL/TLS (Schannel)" OFF CURL_ENABLE_SSL OFF)
option(CURL_WINDOWS_SSPI "Enable SSPI on Windows" ${CURL_USE_SCHANNEL})
endif()
cmake_dependent_option(CURL_USE_MBEDTLS "Enable mbedTLS for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
cmake_dependent_option(CURL_USE_BEARSSL "Enable BearSSL for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
cmake_dependent_option(CURL_USE_WOLFSSL "Enable wolfSSL for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
cmake_dependent_option(CURL_USE_GNUTLS "Enable GnuTLS for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
cmake_dependent_option(CURL_USE_RUSTLS "Enable Rustls for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
if(WIN32 OR
CURL_USE_SECTRANSP OR
CURL_USE_SCHANNEL OR
CURL_USE_MBEDTLS OR
CURL_USE_BEARSSL OR
CURL_USE_WOLFSSL OR
CURL_USE_GNUTLS OR
CURL_USE_RUSTLS)
set(_openssl_default OFF)
else()
set(_openssl_default ON)
endif()
cmake_dependent_option(CURL_USE_OPENSSL "Enable OpenSSL for SSL/TLS" ${_openssl_default} CURL_ENABLE_SSL OFF)
option(USE_OPENSSL_QUIC "Use OpenSSL and nghttp3 libraries for HTTP/3 support" OFF)
if(USE_OPENSSL_QUIC AND NOT CURL_USE_OPENSSL)
message(WARNING "OpenSSL QUIC has been requested, but without enabling OpenSSL. Will not enable QUIC.")
set(USE_OPENSSL_QUIC OFF)
endif()
option(CURL_DISABLE_OPENSSL_AUTO_LOAD_CONFIG "Disable automatic loading of OpenSSL configuration" OFF)
count_true(_enabled_ssl_options_count
CURL_USE_SCHANNEL
CURL_USE_SECTRANSP
CURL_USE_OPENSSL
CURL_USE_MBEDTLS
CURL_USE_BEARSSL
CURL_USE_WOLFSSL
CURL_USE_GNUTLS
CURL_USE_RUSTLS
)
if(_enabled_ssl_options_count GREATER 1)
set(CURL_WITH_MULTI_SSL ON)
elseif(_enabled_ssl_options_count EQUAL 0)
set(CURL_DISABLE_HSTS ON)
endif()
if(CURL_USE_SCHANNEL)
set(_ssl_enabled ON)
set(USE_SCHANNEL ON) # Windows native SSL/TLS support
set(USE_WINDOWS_SSPI ON) # CURL_USE_SCHANNEL implies CURL_WINDOWS_SSPI
if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "schannel")
set(_valid_default_ssl_backend TRUE)
endif()
endif()
if(CURL_WINDOWS_SSPI)
set(USE_WINDOWS_SSPI ON)
endif()
if(CURL_USE_SECTRANSP)
set(_use_core_foundation_and_core_services ON)
find_library(SECURITY_FRAMEWORK "Security")
mark_as_advanced(SECURITY_FRAMEWORK)
if(NOT SECURITY_FRAMEWORK)
message(FATAL_ERROR "Security framework not found")
endif()
set(_ssl_enabled ON)
set(USE_SECTRANSP ON)
list(APPEND CURL_LIBS "-framework Security")
if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "secure-transport")
set(_valid_default_ssl_backend TRUE)
endif()
message(WARNING "Secure Transport does not support TLS 1.3.")
endif()
if(_use_core_foundation_and_core_services)
find_library(COREFOUNDATION_FRAMEWORK "CoreFoundation")
mark_as_advanced(COREFOUNDATION_FRAMEWORK)
find_library(CORESERVICES_FRAMEWORK "CoreServices")
mark_as_advanced(CORESERVICES_FRAMEWORK)
if(NOT COREFOUNDATION_FRAMEWORK)
message(FATAL_ERROR "CoreFoundation framework not found")
endif()
if(NOT CORESERVICES_FRAMEWORK)
message(FATAL_ERROR "CoreServices framework not found")
endif()
list(APPEND CURL_LIBS "-framework CoreFoundation" "-framework CoreServices")
endif()
if(CURL_USE_OPENSSL)
find_package(OpenSSL REQUIRED)
set(_ssl_enabled ON)
set(USE_OPENSSL ON)
# Depend on OpenSSL via imported targets. This allows our dependents to
# get our dependencies transitively.
list(APPEND CURL_LIBS OpenSSL::SSL OpenSSL::Crypto)
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "openssl")
if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "openssl")
set(_valid_default_ssl_backend TRUE)
endif()
set(_curl_ca_bundle_supported TRUE)
cmake_push_check_state()
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
if(NOT DEFINED HAVE_BORINGSSL)
check_symbol_exists("OPENSSL_IS_BORINGSSL" "openssl/base.h" HAVE_BORINGSSL)
endif()
if(NOT DEFINED HAVE_AWSLC)
check_symbol_exists("OPENSSL_IS_AWSLC" "openssl/base.h" HAVE_AWSLC)
endif()
cmake_pop_check_state()
endif()
if(CURL_USE_MBEDTLS)
find_package(MbedTLS REQUIRED)
set(_ssl_enabled ON)
set(USE_MBEDTLS ON)
list(APPEND CURL_LIBS ${MBEDTLS_LIBRARIES})
list(APPEND CURL_LIBDIRS ${MBEDTLS_LIBRARY_DIRS})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${MBEDTLS_PC_REQUIRES})
include_directories(SYSTEM ${MBEDTLS_INCLUDE_DIRS})
link_directories(${MBEDTLS_LIBRARY_DIRS})
if(MBEDTLS_CFLAGS)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${MBEDTLS_CFLAGS}")
endif()
if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "mbedtls")
set(_valid_default_ssl_backend TRUE)
endif()
set(_curl_ca_bundle_supported TRUE)
endif()
if(CURL_USE_BEARSSL)
find_package(BearSSL REQUIRED)
set(_ssl_enabled ON)
set(USE_BEARSSL ON)
list(APPEND CURL_LIBS ${BEARSSL_LIBRARIES})
include_directories(SYSTEM ${BEARSSL_INCLUDE_DIRS})
if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "bearssl")
set(_valid_default_ssl_backend TRUE)
endif()
set(_curl_ca_bundle_supported TRUE)
message(WARNING "BearSSL does not support TLS 1.3.")
endif()
if(CURL_USE_WOLFSSL)
find_package(WolfSSL REQUIRED)
set(_ssl_enabled ON)
set(USE_WOLFSSL ON)
list(APPEND CURL_LIBS ${WOLFSSL_LIBRARIES})
list(APPEND CURL_LIBDIRS ${WOLFSSL_LIBRARY_DIRS})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "wolfssl")
include_directories(SYSTEM ${WOLFSSL_INCLUDE_DIRS})
link_directories(${WOLFSSL_LIBRARY_DIRS})
if(WOLFSSL_CFLAGS)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${WOLFSSL_CFLAGS}")
endif()
if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "wolfssl")
set(_valid_default_ssl_backend TRUE)
endif()
set(_curl_ca_bundle_supported TRUE)
endif()
if(CURL_USE_GNUTLS)
if(CURL_USE_PKGCONFIG)
find_package(PkgConfig QUIET)
pkg_check_modules(GNUTLS "gnutls")
if(GNUTLS_FOUND)
set(GNUTLS_LIBRARIES ${GNUTLS_LINK_LIBRARIES})
endif()
endif()
if(NOT GNUTLS_FOUND)
find_package(GnuTLS REQUIRED)
endif()
find_package(Nettle REQUIRED)
set(_ssl_enabled ON)
set(USE_GNUTLS ON)
list(APPEND CURL_LIBS ${GNUTLS_LIBRARIES} ${NETTLE_LIBRARIES})
list(APPEND CURL_LIBDIRS ${NETTLE_LIBRARY_DIRS})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "gnutls" "nettle")
include_directories(SYSTEM ${GNUTLS_INCLUDE_DIRS} ${NETTLE_INCLUDE_DIRS})
link_directories(${NETTLE_LIBRARY_DIRS})
if(NETTLE_CFLAGS)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${NETTLE_CFLAGS}")
endif()
if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "gnutls")
set(_valid_default_ssl_backend TRUE)
endif()
set(_curl_ca_bundle_supported TRUE)
if(NOT DEFINED HAVE_GNUTLS_SRP AND NOT CURL_DISABLE_SRP)
cmake_push_check_state()
set(CMAKE_REQUIRED_INCLUDES ${GNUTLS_INCLUDE_DIRS})
set(CMAKE_REQUIRED_LIBRARIES ${GNUTLS_LIBRARIES})
check_symbol_exists("gnutls_srp_verifier" "gnutls/gnutls.h" HAVE_GNUTLS_SRP)
cmake_pop_check_state()
endif()
endif()
if(CURL_USE_RUSTLS)
find_package(Rustls REQUIRED)
set(_ssl_enabled ON)
set(USE_RUSTLS ON)
list(APPEND CURL_LIBS ${RUSTLS_LIBRARIES})
list(APPEND CURL_LIBDIRS ${RUSTLS_LIBRARY_DIRS})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${RUSTLS_PC_REQUIRES})
include_directories(SYSTEM ${RUSTLS_INCLUDE_DIRS})
link_directories(${RUSTLS_LIBRARY_DIRS})
if(RUSTLS_CFLAGS)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${RUSTLS_CFLAGS}")
endif()
if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "rustls")
set(_valid_default_ssl_backend TRUE)
endif()
set(_curl_ca_bundle_supported TRUE)
endif()
if(CURL_DEFAULT_SSL_BACKEND AND NOT _valid_default_ssl_backend)
message(FATAL_ERROR "CURL_DEFAULT_SSL_BACKEND '${CURL_DEFAULT_SSL_BACKEND}' not enabled.")
endif()
# Keep ZLIB detection after TLS detection,
# and before calling openssl_check_symbol_exists().
set(HAVE_LIBZ OFF)
curl_dependency_option(ZLIB)
if(ZLIB_FOUND)
set(HAVE_LIBZ ON)
# Depend on ZLIB via imported targets. This allows our dependents to
# get our dependencies transitively.
list(APPEND CURL_LIBS ZLIB::ZLIB)
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "zlib")
endif()
option(CURL_BROTLI "Use brotli" OFF)
set(HAVE_BROTLI OFF)
if(CURL_BROTLI)
find_package(Brotli REQUIRED)
if(BROTLI_FOUND)
set(HAVE_BROTLI ON)
list(APPEND CURL_LIBS ${BROTLI_LIBRARIES})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libbrotlidec")
include_directories(SYSTEM ${BROTLI_INCLUDE_DIRS})
endif()
endif()
option(CURL_ZSTD "Use zstd" OFF)
set(HAVE_ZSTD OFF)
if(CURL_ZSTD)
find_package(Zstd REQUIRED)
if(ZSTD_FOUND AND NOT ZSTD_VERSION VERSION_LESS 1.0.0)
set(HAVE_ZSTD ON)
list(APPEND CURL_LIBS ${ZSTD_LIBRARIES})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libzstd")
include_directories(SYSTEM ${ZSTD_INCLUDE_DIRS})
else()
message(WARNING "zstd v1.0.0 or newer is required, disabling zstd support.")
endif()
endif()
# Check symbol in an OpenSSL-like TLS backend, or in _extra_libs depending on it.
macro(openssl_check_symbol_exists _symbol _files _variable _extra_libs)
cmake_push_check_state()
if(USE_OPENSSL)
set(CMAKE_REQUIRED_INCLUDES "${OPENSSL_INCLUDE_DIR}")
set(CMAKE_REQUIRED_LIBRARIES "${OPENSSL_LIBRARIES}")
if(HAVE_LIBZ)
list(APPEND CMAKE_REQUIRED_LIBRARIES "${ZLIB_LIBRARIES}")
endif()
if(WIN32)
list(APPEND CMAKE_REQUIRED_LIBRARIES "ws2_32")
list(APPEND CMAKE_REQUIRED_LIBRARIES "bcrypt") # for OpenSSL/LibreSSL
endif()
elseif(USE_WOLFSSL)
set(CMAKE_REQUIRED_INCLUDES "${WOLFSSL_INCLUDE_DIRS}")
set(CMAKE_REQUIRED_LIBRARIES "${WOLFSSL_LIBRARIES}")
curl_required_libpaths("${WOLFSSL_LIBRARY_DIRS}")
if(HAVE_LIBZ)
list(APPEND CMAKE_REQUIRED_INCLUDES "${ZLIB_INCLUDE_DIRS}") # Public wolfSSL headers require zlib headers
list(APPEND CMAKE_REQUIRED_LIBRARIES "${ZLIB_LIBRARIES}")
endif()
if(WIN32)
list(APPEND CMAKE_REQUIRED_LIBRARIES "ws2_32" "crypt32")
endif()
list(APPEND CMAKE_REQUIRED_DEFINITIONS "-DHAVE_UINTPTR_T") # to pull in stdint.h (as of wolfSSL v5.5.4)
endif()
list(APPEND CMAKE_REQUIRED_LIBRARIES "${_extra_libs}")
check_symbol_exists("${_symbol}" "${_files}" "${_variable}")
cmake_pop_check_state()
endmacro()
# Ensure that the OpenSSL fork actually supports QUIC.
macro(openssl_check_quic)
if(NOT DEFINED HAVE_SSL_CTX_SET_QUIC_METHOD)
if(USE_OPENSSL)
openssl_check_symbol_exists("SSL_CTX_set_quic_method" "openssl/ssl.h" HAVE_SSL_CTX_SET_QUIC_METHOD "")
elseif(USE_WOLFSSL)
openssl_check_symbol_exists("wolfSSL_set_quic_method" "wolfssl/options.h;wolfssl/openssl/ssl.h"
HAVE_SSL_CTX_SET_QUIC_METHOD "")
endif()
endif()
if(NOT HAVE_SSL_CTX_SET_QUIC_METHOD)
message(FATAL_ERROR "QUIC support is missing in OpenSSL fork. Try setting -DOPENSSL_ROOT_DIR")
endif()
endmacro()
if(USE_WOLFSSL)
openssl_check_symbol_exists("wolfSSL_DES_ecb_encrypt" "wolfssl/options.h;wolfssl/openssl/des.h" HAVE_WOLFSSL_DES_ECB_ENCRYPT "")
openssl_check_symbol_exists("wolfSSL_BIO_new" "wolfssl/options.h;wolfssl/ssl.h" HAVE_WOLFSSL_BIO "")
openssl_check_symbol_exists("wolfSSL_BIO_set_shutdown" "wolfssl/options.h;wolfssl/ssl.h" HAVE_WOLFSSL_FULL_BIO "")
endif()
if(USE_OPENSSL OR USE_WOLFSSL)
if(NOT DEFINED HAVE_SSL_SET0_WBIO)
openssl_check_symbol_exists("SSL_set0_wbio" "openssl/ssl.h" HAVE_SSL_SET0_WBIO "")
endif()
if(NOT DEFINED HAVE_OPENSSL_SRP AND NOT CURL_DISABLE_SRP)
openssl_check_symbol_exists("SSL_CTX_set_srp_username" "openssl/ssl.h" HAVE_OPENSSL_SRP "")
endif()
endif()
option(USE_HTTPSRR "Enable HTTPS RR support" OFF)
option(USE_ECH "Enable ECH support" OFF)
if(USE_ECH)
if(USE_OPENSSL OR USE_WOLFSSL)
# Be sure that the TLS library actually supports ECH.
if(NOT DEFINED HAVE_ECH)
if(USE_OPENSSL AND (HAVE_BORINGSSL OR HAVE_AWSLC))
openssl_check_symbol_exists("SSL_set1_ech_config_list" "openssl/ssl.h" HAVE_ECH "")
elseif(USE_OPENSSL)
openssl_check_symbol_exists("SSL_ech_set1_echconfig" "openssl/ech.h" HAVE_ECH "")
elseif(USE_WOLFSSL)
openssl_check_symbol_exists("wolfSSL_CTX_GenerateEchConfig" "wolfssl/options.h;wolfssl/ssl.h" HAVE_ECH "")
endif()
endif()
if(NOT HAVE_ECH)
message(FATAL_ERROR "ECH support missing in OpenSSL/BoringSSL/AWS-LC/wolfSSL")
else()
message(STATUS "ECH enabled.")
endif()
else()
message(FATAL_ERROR "ECH requires ECH-enablded OpenSSL, BoringSSL, AWS-LC or wolfSSL")
endif()
endif()
option(USE_NGHTTP2 "Use nghttp2 library" ON)
if(USE_NGHTTP2)
find_package(NGHTTP2)
if(NGHTTP2_FOUND)
include_directories(SYSTEM ${NGHTTP2_INCLUDE_DIRS})
list(APPEND CURL_LIBS ${NGHTTP2_LIBRARIES})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libnghttp2")
else()
set(USE_NGHTTP2 OFF)
endif()
endif()
option(USE_NGTCP2 "Use ngtcp2 and nghttp3 libraries for HTTP/3 support" OFF)
if(USE_NGTCP2)
if(USE_OPENSSL OR USE_WOLFSSL)
if(USE_WOLFSSL)
find_package(NGTCP2 REQUIRED "wolfSSL")
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libngtcp2_crypto_wolfssl")
elseif(HAVE_BORINGSSL OR HAVE_AWSLC)
find_package(NGTCP2 REQUIRED "BoringSSL")
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libngtcp2_crypto_boringssl")
else()
find_package(NGTCP2 REQUIRED "quictls")
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libngtcp2_crypto_quictls")
endif()
openssl_check_quic()
elseif(USE_GNUTLS)
find_package(NGTCP2 REQUIRED "GnuTLS")
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libngtcp2_crypto_gnutls")
else()
message(FATAL_ERROR "ngtcp2 requires OpenSSL, wolfSSL or GnuTLS")
endif()
include_directories(SYSTEM ${NGTCP2_INCLUDE_DIRS})
list(APPEND CURL_LIBS ${NGTCP2_LIBRARIES})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libngtcp2")
find_package(NGHTTP3 REQUIRED)
set(USE_NGHTTP3 ON)
include_directories(SYSTEM ${NGHTTP3_INCLUDE_DIRS})
list(APPEND CURL_LIBS ${NGHTTP3_LIBRARIES})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libnghttp3")
endif()
option(USE_QUICHE "Use quiche library for HTTP/3 support" OFF)
if(USE_QUICHE)
if(USE_NGTCP2)
message(FATAL_ERROR "Only one HTTP/3 backend can be selected")
endif()
find_package(Quiche REQUIRED)
if(NOT HAVE_BORINGSSL)
message(FATAL_ERROR "quiche requires BoringSSL")
endif()
openssl_check_quic()
list(APPEND CURL_LIBS ${QUICHE_LIBRARIES})
list(APPEND CURL_LIBDIRS ${QUICHE_LIBRARY_DIRS})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "quiche")
include_directories(SYSTEM ${QUICHE_INCLUDE_DIRS})
link_directories(${QUICHE_LIBRARY_DIRS})
if(QUICHE_CFLAGS)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${QUICHE_CFLAGS}")
endif()
if(NOT DEFINED HAVE_QUICHE_CONN_SET_QLOG_FD)
cmake_push_check_state()
set(CMAKE_REQUIRED_INCLUDES "${QUICHE_INCLUDE_DIRS}")
set(CMAKE_REQUIRED_LIBRARIES "${QUICHE_LIBRARIES}")
check_symbol_exists("quiche_conn_set_qlog_fd" "quiche.h" HAVE_QUICHE_CONN_SET_QLOG_FD)
cmake_pop_check_state()
endif()
endif()
option(USE_MSH3 "Use msh3/msquic library for HTTP/3 support" OFF)
if(USE_MSH3)
if(USE_NGTCP2 OR USE_QUICHE)
message(FATAL_ERROR "Only one HTTP/3 backend can be selected")
endif()
if(NOT WIN32)
if(NOT USE_OPENSSL)
message(FATAL_ERROR "msh3/msquic requires OpenSSL fork with QUIC API")
endif()
openssl_check_quic()
endif()
find_package(MSH3 REQUIRED)
list(APPEND CURL_LIBS ${MSH3_LIBRARIES})
list(APPEND CURL_LIBDIRS ${MSH3_LIBRARY_DIRS})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${MSH3_PC_REQUIRES})
include_directories(SYSTEM ${MSH3_INCLUDE_DIRS})
link_directories(${MSH3_LIBRARY_DIRS})
if(MSH3_CFLAGS)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${MSH3_CFLAGS}")
endif()
endif()
if(USE_OPENSSL_QUIC)
if(USE_NGTCP2 OR USE_QUICHE OR USE_MSH3)
message(FATAL_ERROR "Only one HTTP/3 backend can be selected")
endif()
find_package(OpenSSL 3.3.0 REQUIRED)
find_package(NGHTTP3 REQUIRED)
set(USE_NGHTTP3 ON)
include_directories(SYSTEM ${NGHTTP3_INCLUDE_DIRS})
list(APPEND CURL_LIBS ${NGHTTP3_LIBRARIES})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libnghttp3")
endif()