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CMakeLists.txt
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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <[email protected]>, 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
# HAVE_OPENSSL_SRP: `SSL_CTX_set_srp_username` present in OpenSSL
# HAVE_GNUTLS_SRP: `gnutls_srp_verifier` present in GnuTLS
# HAVE_SSL_SET_QUIC_USE_LEGACY_CODEPOINT: `SSL_set_quic_use_legacy_codepoint` 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()
string(APPEND _cmake_args " -D${_cache_var}${_cache_var_type}=\"${_cache_var_value}\"")
endif()
endforeach()
endif()
set(CMAKE_MODULE_PATH "${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)
# CMake does not recognize some targets accurately. Touch up configuration manually as a workaround.
if(WINDOWS_STORE AND MINGW) # mingw UWP build
# CMake (as of v3.31.2) gets confused and applies the MSVC rc.exe command-line
# template to windres. Reset it to the windres template via 'Modules/Platform/Windows-windres.cmake':
set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> -O coff <DEFINES> <INCLUDES> <FLAGS> <SOURCE> <OBJECT>")
elseif(WIN32 AND WINCE AND CMAKE_COMPILER_IS_GNUCC) # mingw32ce build
if(NOT MINGW32CE_LIBRARY_DIR)
message(FATAL_ERROR "Set MINGW32CE_LIBRARY_DIR variable to the mingw32ce platform library directory.")
endif()
set(MINGW 1)
set(MINGW32CE 1)
# Build implib with libcurl DLL. Copied from CMake's 'Modules/Platform/Windows-GNU.cmake'.
set(CMAKE_C_CREATE_SHARED_LIBRARY "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS>")
string(APPEND CMAKE_C_CREATE_SHARED_LIBRARY " <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> -o <TARGET> -Wl,--out-implib,<TARGET_IMPLIB>")
string(APPEND CMAKE_C_CREATE_SHARED_LIBRARY " ${CMAKE_GNULD_IMAGE_VERSION} <OBJECTS> <LINK_LIBRARIES>")
# Build resources. Copied from CMake's 'Modules/Platform/Windows-windres.cmake'.
set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> -O coff <DEFINES> <INCLUDES> <FLAGS> <SOURCE> <OBJECT>")
enable_language(RC)
set(CMAKE_C_COMPILE_OPTIONS_PIC "") # CMake sets it to '-fPIC', confusing the toolchain and breaking builds. Zap it.
set(CMAKE_STATIC_LIBRARY_PREFIX "lib")
set(CMAKE_STATIC_LIBRARY_SUFFIX ".a")
set(CMAKE_SHARED_LIBRARY_PREFIX "lib")
set(CMAKE_SHARED_LIBRARY_SUFFIX ".dll")
set(CMAKE_IMPORT_LIBRARY_PREFIX "lib")
set(CMAKE_IMPORT_LIBRARY_SUFFIX ".dll.a")
set(CMAKE_FIND_LIBRARY_PREFIXES "lib" "")
set(CMAKE_FIND_LIBRARY_SUFFIXES ".dll.a" ".a" ".lib")
elseif(DOS AND CMAKE_COMPILER_IS_GNUCC) # DJGPP
set(CMAKE_STATIC_LIBRARY_PREFIX "lib")
set(CMAKE_STATIC_LIBRARY_SUFFIX ".a")
set(CMAKE_FIND_LIBRARY_PREFIXES "lib")
set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
endif()
# Fill platform level variable when using CMake's built-in Android configuration
if(ANDROID AND NOT DEFINED ANDROID_PLATFORM_LEVEL AND NOT CMAKE_SYSTEM_VERSION EQUAL 1)
set(ANDROID_PLATFORM_LEVEL "${CMAKE_SYSTEM_VERSION}")
endif()
set(_target_flags "")
if(APPLE)
string(APPEND _target_flags " APPLE")
endif()
if(UNIX)
string(APPEND _target_flags " UNIX")
endif()
if(BSD)
string(APPEND _target_flags " BSD")
endif()
if(ANDROID)
string(APPEND _target_flags " ANDROID-${ANDROID_PLATFORM_LEVEL}")
endif()
if(WIN32)
string(APPEND _target_flags " WIN32")
endif()
if(WINCE)
string(APPEND _target_flags " WINCE")
endif()
if(WINDOWS_STORE)
string(APPEND _target_flags " UWP")
endif()
if(CYGWIN)
string(APPEND _target_flags " CYGWIN")
endif()
if(DOS)
string(APPEND _target_flags " DOS")
endif()
if(AMIGA)
string(APPEND _target_flags " AMIGA")
endif()
if(CMAKE_COMPILER_IS_GNUCC)
string(APPEND _target_flags " GCC")
endif()
if(MINGW)
string(APPEND _target_flags " MINGW")
endif()
if(MSVC)
string(APPEND _target_flags " MSVC-${MSVC_VERSION}")
endif()
if(VCPKG_TOOLCHAIN)
string(APPEND _target_flags " VCPKG")
endif()
if(CMAKE_CROSSCOMPILING)
string(APPEND _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 ${CMAKE_TRY_COMPILE_TARGET_TYPE})
set(CMAKE_TRY_COMPILE_TARGET_TYPE "EXECUTABLE")
endif()
option(CURL_WERROR "Turn compiler warnings into errors" OFF)
option(PICKY_COMPILER "Enable picky compiler options" ON)
option(BUILD_CURL_EXE "Build curl executable" ON)
option(BUILD_SHARED_LIBS "Build shared libraries" ON)
option(BUILD_STATIC_LIBS "Build static libraries" OFF)
option(BUILD_STATIC_CURL "Build curl executable with static libcurl" OFF)
option(ENABLE_ARES "Enable c-ares support" OFF)
option(CURL_DISABLE_INSTALL "Disable installation targets" OFF)
if(WIN32)
option(ENABLE_UNICODE "Use the Unicode version of the Windows API functions" OFF)
if(WINDOWS_STORE OR WINCE)
set(ENABLE_UNICODE ON)
endif()
if(ENABLE_UNICODE)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS "UNICODE" "_UNICODE")
if(MINGW AND NOT MINGW32CE)
set_property(DIRECTORY APPEND PROPERTY COMPILE_OPTIONS "-municode")
endif()
endif()
# Apply to all feature checks
list(APPEND CMAKE_REQUIRED_DEFINITIONS "-DWIN32_LEAN_AND_MEAN")
if(MSVC)
list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_CRT_NONSTDC_NO_DEPRECATE") # for strdup() detection
endif()
set(CURL_TARGET_WINDOWS_VERSION "" CACHE STRING "Minimum target Windows version as hex string")
if(CURL_TARGET_WINDOWS_VERSION)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS "_WIN32_WINNT=${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=${HAVE_WIN32_WINNT}")
endif()
unset(HAVE_WIN32_WINNT CACHE) # Avoid storing in CMake cache
if(MINGW)
# Detect __MINGW64_VERSION_MAJOR, __MINGW64_VERSION_MINOR and store as MINGW64_VERSION
curl_internal_test(MINGW64_VERSION)
if(MINGW64_VERSION)
string(REGEX MATCH "MINGW64_VERSION=[0-9]+\.[0-9]+" CURL_TEST_OUTPUT "${CURL_TEST_OUTPUT}")
string(REGEX REPLACE "MINGW64_VERSION=" "" MINGW64_VERSION "${CURL_TEST_OUTPUT}")
if(MINGW64_VERSION)
message(STATUS "Found MINGW64_VERSION=${MINGW64_VERSION}")
endif()
endif()
unset(MINGW64_VERSION CACHE) # Avoid storing in CMake cache
endif()
elseif(DOS OR AMIGA)
set(BUILD_SHARED_LIBS OFF)
set(BUILD_STATIC_LIBS ON)
endif()
option(CURL_LTO "Enable compiler Link Time Optimizations" OFF)
if(NOT DOS AND NOT AMIGA)
# if c-ares is used, default the threaded resolver to OFF
if(ENABLE_ARES)
set(_enable_threaded_resolver_default OFF)
else()
set(_enable_threaded_resolver_default ON)
endif()
option(ENABLE_THREADED_RESOLVER "Enable threaded DNS lookup" ${_enable_threaded_resolver_default})
endif()
include(PickyWarnings)
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
string(APPEND 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 and insecure, do not use in production.")
endif()
option(ENABLE_CURLDEBUG "Enable TrackMemory debug feature" ${ENABLE_DEBUG})
option(ENABLE_SERVER_DEBUG "Apply curl debug options to test servers" OFF)
set(CURL_DEBUG_MACROS "")
if(ENABLE_DEBUG)
list(APPEND CURL_DEBUG_MACROS "DEBUGBUILD")
endif()
if(ENABLE_CURLDEBUG)
list(APPEND CURL_DEBUG_MACROS "CURLDEBUG")
endif()
option(CURL_CLANG_TIDY "Run the build through clang-tidy" OFF)
if(CURL_CLANG_TIDY)
set(CMAKE_UNITY_BUILD OFF)
set(_tidy_checks "")
list(APPEND _tidy_checks "-clang-analyzer-security.insecureAPI.strcpy")
list(APPEND _tidy_checks "-clang-analyzer-optin.performance.Padding")
list(APPEND _tidy_checks "-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling")
string(REPLACE ";" "," _tidy_checks "${_tidy_checks}")
find_program(CLANG_TIDY NAMES "clang-tidy" REQUIRED)
set(CMAKE_C_CLANG_TIDY "${CLANG_TIDY}" "-checks=${_tidy_checks}" "-quiet")
unset(_tidy_checks)
if(CURL_WERROR)
list(APPEND CMAKE_C_CLANG_TIDY "--warnings-as-errors=*")
endif()
if(CURL_CLANG_TIDYFLAGS)
list(APPEND CMAKE_C_CLANG_TIDY ${CURL_CLANG_TIDYFLAGS})
endif()
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 ${LIB_STATIC})
endif()
if(WIN32)
option(CURL_STATIC_CRT "Build libcurl with static CRT with MSVC (/MT)" OFF)
if(CURL_STATIC_CRT AND MSVC)
if(MSVC_VERSION GREATER_EQUAL 1900 OR BUILD_STATIC_CURL OR NOT BUILD_CURL_EXE)
set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
string(APPEND CMAKE_C_FLAGS_RELEASE " -MT")
string(APPEND CMAKE_C_FLAGS_DEBUG " -MTd")
else()
message(WARNING "Static CRT requires UCRT, static libcurl or no curl executable.")
endif()
endif()
endif()
# Override to force-disable or force-enable the use of pkg-config.
if((UNIX AND NOT ANDROID AND (NOT APPLE OR CMAKE_SYSTEM_NAME MATCHES "Darwin")) OR
VCPKG_TOOLCHAIN OR
(MINGW AND NOT CMAKE_CROSSCOMPILING))
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 CURL_LIBDIRS ${CARES_LIBRARY_DIRS})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${CARES_PC_REQUIRES})
link_directories(${CARES_LIBRARY_DIRS})
if(CARES_CFLAGS)
string(APPEND CMAKE_C_FLAGS " ${CARES_CFLAGS}")
endif()
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 OR WINCE)
set(CURL_DISABLE_TELNET ON) # telnet code needs fixing to compile for UWP.
endif()
find_package(Perl)
if(PERL_EXECUTABLE)
add_custom_target(curl-ca-bundle
COMMENT "Generating a fresh ca-bundle.crt" VERBATIM USES_TERMINAL
COMMAND "${PERL_EXECUTABLE}" "${PROJECT_SOURCE_DIR}/scripts/mk-ca-bundle.pl" -b -l -u "lib/ca-bundle.crt"
DEPENDS "${PROJECT_SOURCE_DIR}/scripts/mk-ca-bundle.pl"
)
add_custom_target(curl-ca-firefox
COMMENT "generating a fresh ca-bundle.crt" VERBATIM USES_TERMINAL
COMMAND "${PERL_EXECUTABLE}" "${PROJECT_SOURCE_DIR}/scripts/firefox-db2pem.sh" "lib/ca-bundle.crt"
DEPENDS "${PROJECT_SOURCE_DIR}/scripts/firefox-db2pem.sh"
)
endif()
option(BUILD_LIBCURL_DOCS "Build libcurl man pages" ON)
option(BUILD_MISC_DOCS "Build misc man pages (e.g. curl-config and mk-ca-bundle)" ON)
option(ENABLE_CURL_MANUAL "Build the man page for curl and enable its -M/--manual option" ON)
if(ENABLE_CURL_MANUAL OR BUILD_LIBCURL_DOCS)
if(PERL_FOUND)
set(HAVE_MANUAL_TOOLS ON)
endif()
if(NOT HAVE_MANUAL_TOOLS)
message(WARNING "Perl not found. Will not build manuals.")
endif()
endif()
# If we are on AIX, do the _ALL_SOURCE magic
if(CMAKE_SYSTEM_NAME STREQUAL "AIX")
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS "_ALL_SOURCE")
endif()
# If we are on Haiku, make sure that the network library is brought in.
if(CMAKE_SYSTEM_NAME STREQUAL "Haiku")
list(APPEND CURL_LIBS "network")
elseif(AMIGA)
list(APPEND CURL_LIBS "net" "m" "atomic")
list(APPEND CMAKE_REQUIRED_LIBRARIES "net" "m" "atomic")
endif()
# Include all the necessary files for macros
include(CMakePushCheckState)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckLibraryExists)
include(CheckSymbolExists)
include(CheckTypeSize)
include(CheckCSourceCompiles)
option(_CURL_PREFILL "Fast-track known feature detection results (Windows, some Apple)" "${WIN32}")
if(_CURL_PREFILL)
if(WIN32)
include("${CMAKE_CURRENT_SOURCE_DIR}/CMake/win32-cache.cmake")
elseif(UNIX)
include("${CMAKE_CURRENT_SOURCE_DIR}/CMake/unix-cache.cmake")
message(STATUS "Pre-filling feature detection results for UNIX")
endif()
elseif(WIN32)
message(STATUS "Pre-filling feature detection results disabled.")
elseif(APPLE)
set(HAVE_EVENTFD 0)
set(HAVE_GETPASS_R 0)
set(HAVE_WRITABLE_ARGV 1)
set(HAVE_SENDMMSG 0)
endif()
if(AMIGA)
set(HAVE_GETADDRINFO 0) # Breaks the build when detected and used.
endif()
if(DOS OR AMIGA)
set(HAVE_TIME_T_UNSIGNED 1)
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 ${CMAKE_THREAD_LIBS_INIT})
endif()
endif()
# Check for all needed libraries
if(WIN32)
if(WINCE)
set(_win32_winsock "ws2")
else()
set(_win32_winsock "ws2_32")
endif()
set(_win32_crypt32 "crypt32")
if(MINGW32CE) # FIXME upstream: must specify the full path to avoid CMake converting "ws2" to "ws2.lib"
set(_win32_winsock "${MINGW32CE_LIBRARY_DIR}/lib${_win32_winsock}.a")
set(_win32_crypt32 "${MINGW32CE_LIBRARY_DIR}/lib${_win32_crypt32}.a")
endif()
elseif(DOS)
if(WATT_ROOT)
set(USE_WATT32 ON)
# FIXME upstream: must specify the full path to avoid CMake converting "watt" to "watt.lib"
list(APPEND CURL_LIBS "${WATT_ROOT}/lib/libwatt.a")
include_directories(SYSTEM "${WATT_ROOT}/inc")
list(APPEND CMAKE_REQUIRED_INCLUDES "${WATT_ROOT}/inc")
else()
message(FATAL_ERROR "Set WATT_ROOT variable to the root installation of Watt-32.")
endif()
elseif(AMIGA)
if(AMISSL_INCLUDE_DIR AND AMISSL_STUBS_LIBRARY AND AMISSL_AUTO_LIBRARY)
set(USE_AMISSL ON)
list(APPEND CMAKE_REQUIRED_INCLUDES "${AMISSL_INCLUDE_DIR}")
list(APPEND CMAKE_REQUIRED_LIBRARIES "${AMISSL_STUBS_LIBRARY}" "${AMISSL_AUTO_LIBRARY}")
set(OPENSSL_INCLUDE_DIR "${AMISSL_INCLUDE_DIR}")
set(OPENSSL_SSL_LIBRARY "${AMISSL_STUBS_LIBRARY}")
set(OPENSSL_CRYPTO_LIBRARY "${AMISSL_AUTO_LIBRARY}")
set(CURL_USE_OPENSSL ON)
set(CURL_CA_FALLBACK ON CACHE BOOL "")
endif()
elseif(NOT APPLE)
check_library_exists("socket" "connect" "" HAVE_LIBSOCKET)
if(HAVE_LIBSOCKET)
set(CURL_LIBS "socket" ${CURL_LIBS})
endif()
endif()
option(ENABLE_IPV6 "Enable IPv6 support" ON)
mark_as_advanced(ENABLE_IPV6)
if(ENABLE_IPV6)
include(CheckStructHasMember)
if(WIN32)
check_struct_has_member("struct sockaddr_in6" "sin6_scope_id" "winsock2.h;ws2tcpip.h" HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID)
else()
check_struct_has_member("struct sockaddr_in6" "sin6_scope_id" "netinet/in.h" HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID)
check_struct_has_member("struct sockaddr_in6" "sin6_addr" "netinet/in.h" HAVE_SOCKADDR_IN6_SIN6_ADDR)
if(NOT HAVE_SOCKADDR_IN6_SIN6_ADDR)
if(NOT DOS AND NOT AMIGA)
message(WARNING "struct sockaddr_in6 not available, disabling IPv6 support")
endif()
set(ENABLE_IPV6 OFF CACHE BOOL "Enable IPv6 support" FORCE) # Force the feature off as we use this name as guard macro
endif()
if(APPLE AND NOT ENABLE_ARES)
set(_use_core_foundation_and_core_services ON)
find_library(SYSTEMCONFIGURATION_FRAMEWORK NAMES "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()
endif()
if(ENABLE_IPV6 AND NOT WINCE)
set(USE_IPV6 ON)
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)
curl_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 requires 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 NAMES "Security")
mark_as_advanced(SECURITY_FRAMEWORK)
if(NOT SECURITY_FRAMEWORK)
message(FATAL_ERROR "Security framework not found")
endif()
list(APPEND CURL_LIBS "-framework Security")
set(_ssl_enabled ON)
set(USE_SECTRANSP ON)
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 NAMES "CoreFoundation")
mark_as_advanced(COREFOUNDATION_FRAMEWORK)
if(NOT COREFOUNDATION_FRAMEWORK)
message(FATAL_ERROR "CoreFoundation framework not found")
endif()
list(APPEND CURL_LIBS "-framework CoreFoundation")
find_library(CORESERVICES_FRAMEWORK NAMES "CoreServices")
mark_as_advanced(CORESERVICES_FRAMEWORK)
if(NOT CORESERVICES_FRAMEWORK)
message(FATAL_ERROR "CoreServices framework not found")
endif()
list(APPEND CURL_LIBS "-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()
list(APPEND CMAKE_REQUIRED_LIBRARIES OpenSSL::SSL OpenSSL::Crypto)
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()
if(NOT DEFINED HAVE_LIBRESSL)
check_symbol_exists("LIBRESSL_VERSION_NUMBER" "openssl/opensslv.h" HAVE_LIBRESSL)
endif()
cmake_pop_check_state()
if(HAVE_BORINGSSL OR HAVE_AWSLC)
if(OPENSSL_USE_STATIC_LIBS AND CMAKE_C_COMPILER_ID MATCHES "Clang")
list(APPEND CURL_LIBS "stdc++")
list(APPEND CMAKE_REQUIRED_LIBRARIES "stdc++")
endif()
endif()
if(HAVE_BORINGSSL)
set(_openssl "BoringSSL")
elseif(HAVE_AWSLC)
set(_openssl "AWS-LC")
elseif(HAVE_LIBRESSL)
set(_openssl "LibreSSL")
elseif(USE_AMISSL)
set(_openssl "AmiSSL")
else()
set(_openssl "OpenSSL")
endif()
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)
string(APPEND 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_PC_REQUIRES})
include_directories(SYSTEM ${WOLFSSL_INCLUDE_DIRS})
link_directories(${WOLFSSL_LIBRARY_DIRS})
if(WOLFSSL_CFLAGS)
string(APPEND 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 ${GNUTLS_LINK_LIBRARIES})
string(REPLACE ";" " " GNUTLS_CFLAGS "${GNUTLS_CFLAGS}")
if(GNUTLS_CFLAGS)
string(APPEND CMAKE_C_FLAGS " ${GNUTLS_CFLAGS}")
endif()
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 ${GNUTLS_LIBRARY_DIRS} ${NETTLE_LIBRARY_DIRS})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "gnutls" ${NETTLE_PC_REQUIRES})
include_directories(SYSTEM ${GNUTLS_INCLUDE_DIRS} ${NETTLE_INCLUDE_DIRS})
link_directories(${NETTLE_LIBRARY_DIRS})
if(NETTLE_CFLAGS)
string(APPEND 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()
list(APPEND CMAKE_REQUIRED_INCLUDES ${GNUTLS_INCLUDE_DIRS})
list(APPEND 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)
string(APPEND 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 curl_openssl_check_exists().
set(HAVE_LIBZ OFF)
curl_dependency_option(CURL_ZLIB ZLIB "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()
set(HAVE_BROTLI OFF)
curl_dependency_option(CURL_BROTLI Brotli "brotli")
if(BROTLI_FOUND)
set(HAVE_BROTLI ON)
list(APPEND CURL_LIBS ${BROTLI_LIBRARIES})
list(APPEND CURL_LIBDIRS ${BROTLI_LIBRARY_DIRS})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${BROTLI_PC_REQUIRES})
include_directories(SYSTEM ${BROTLI_INCLUDE_DIRS})
link_directories(${BROTLI_LIBRARY_DIRS})
if(BROTLI_CFLAGS)
string(APPEND CMAKE_C_FLAGS " ${BROTLI_CFLAGS}")
endif()
endif()
set(HAVE_ZSTD OFF)
curl_dependency_option(CURL_ZSTD Zstd "zstd")
if(ZSTD_FOUND)
if(NOT ZSTD_VERSION VERSION_LESS 1.0.0)
set(HAVE_ZSTD ON)
list(APPEND CURL_LIBS ${ZSTD_LIBRARIES})
list(APPEND CURL_LIBDIRS ${ZSTD_LIBRARY_DIRS})
list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${ZSTD_PC_REQUIRES})
include_directories(SYSTEM ${ZSTD_INCLUDE_DIRS})
link_directories(${ZSTD_LIBRARY_DIRS})
if(ZSTD_CFLAGS)
string(APPEND CMAKE_C_FLAGS " ${ZSTD_CFLAGS}")
endif()
else()
message(WARNING "zstd v1.0.0 or newer is required, disabling zstd support.")
endif()
endif()
# Check function in an OpenSSL-like TLS backend.
macro(curl_openssl_check_exists)
cmake_push_check_state()
if(USE_OPENSSL)
list(APPEND CMAKE_REQUIRED_LIBRARIES OpenSSL::SSL OpenSSL::Crypto)