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CMakeLists.txt
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#
# SRT - Secure, Reliable, Transport
# Copyright (c) 2018 Haivision Systems Inc.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
cmake_minimum_required (VERSION 2.8.12 FATAL_ERROR)
set (SRT_VERSION 1.5.4)
set (CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/scripts")
include(haiUtil) # needed for set_version_variables
# CMake version 3.0 introduced the VERSION option of the project() command
# to specify a project version as well as the name.
if(${CMAKE_VERSION} VERSION_LESS "3.0.0")
project(SRT C CXX)
# Sets SRT_VERSION_MAJOR, SRT_VERSION_MINOR, SRT_VERSION_PATCH
set_version_variables(SRT_VERSION ${SRT_VERSION})
else()
cmake_policy(SET CMP0048 NEW)
# Also sets SRT_VERSION_MAJOR, SRT_VERSION_MINOR, SRT_VERSION_PATCH
project(SRT VERSION ${SRT_VERSION} LANGUAGES C CXX)
endif()
if (NOT ${CMAKE_VERSION} VERSION_LESS "3.28.1")
cmake_policy(SET CMP0054 NEW)
endif ()
include(FindPkgConfig)
# XXX See 'if (MINGW)' condition below, may need fixing.
include(FindThreads)
include(CheckFunctionExists)
# Platform shortcuts
string(TOLOWER ${CMAKE_SYSTEM_NAME} SYSNAME_LC)
set_if(DARWIN (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
OR (${CMAKE_SYSTEM_NAME} MATCHES "iOS")
OR (${CMAKE_SYSTEM_NAME} MATCHES "tvOS")
OR (${CMAKE_SYSTEM_NAME} MATCHES "watchOS")
OR (${CMAKE_SYSTEM_NAME} MATCHES "visionOS"))
set_if(LINUX ${CMAKE_SYSTEM_NAME} MATCHES "Linux")
set_if(BSD ${SYSNAME_LC} MATCHES "bsd$")
set_if(MICROSOFT WIN32 AND (NOT MINGW AND NOT CYGWIN))
set_if(GNU_OS ${CMAKE_SYSTEM_NAME} MATCHES "GNU") # Use GNU_OS to not confuse with gcc
set_if(ANDROID ${SYSNAME_LC} MATCHES "android")
set_if(SUNOS "${SYSNAME_LC}" MATCHES "sunos")
set_if(POSIX LINUX OR DARWIN OR BSD OR SUNOS OR ANDROID OR (CYGWIN AND CYGWIN_USE_POSIX) OR GNU_OS)
set_if(SYMLINKABLE LINUX OR DARWIN OR BSD OR SUNOS OR CYGWIN OR GNU_OS)
set_if(NEED_DESTINATION ${CMAKE_VERSION} VERSION_LESS "3.14.0")
include(GNUInstallDirs)
# The CMAKE_BUILD_TYPE seems not to be always set, weird.
if (NOT DEFINED ENABLE_DEBUG)
if (CMAKE_BUILD_TYPE STREQUAL "Debug")
set (ENABLE_DEBUG ON)
else()
set (ENABLE_DEBUG OFF)
endif()
endif()
# XXX This is a kind of workaround - this part to set the build
# type and associated other flags should not be done for build
# systems (cmake generators) that generate a multi-configuration
# build definition. At least it is known that MSVC does it and it
# sets _DEBUG and NDEBUG flags itself, so this shouldn't be done
# at all in this case.
if (NOT MICROSOFT)
# Set CMAKE_BUILD_TYPE properly, now that you know
# that ENABLE_DEBUG is set as it should.
if (ENABLE_DEBUG EQUAL 2)
set (CMAKE_BUILD_TYPE "RelWithDebInfo")
if (ENABLE_ASSERT)
# Add _DEBUG macro if explicitly requested, to enable SRT_ASSERT().
add_definitions(-D_DEBUG)
else()
add_definitions(-DNDEBUG)
endif()
elseif (ENABLE_DEBUG) # 1, ON, YES, TRUE, Y, or any other non-zero number
set (CMAKE_BUILD_TYPE "Debug")
# Add _DEBUG macro in debug mode only, to enable SRT_ASSERT().
add_definitions(-D_DEBUG)
else()
set (CMAKE_BUILD_TYPE "Release")
add_definitions(-DNDEBUG)
endif()
endif()
message(STATUS "BUILD TYPE: ${CMAKE_BUILD_TYPE}")
getVarsWith(ENFORCE_ enforcers)
foreach(ef ${enforcers})
set (val ${${ef}})
if (NOT val STREQUAL "")
set(val =${val})
endif()
string(LENGTH ENFORCE_ pflen)
string(LENGTH ${ef} eflen)
math(EXPR alen ${eflen}-${pflen})
string(SUBSTRING ${ef} ${pflen} ${alen} ef)
message(STATUS "FORCED PP VARIABLE: ${ef}${val}")
add_definitions(-D${ef}${val})
endforeach()
# NOTE: Known options you can change using ENFORCE_ variables:
# SRT_ENABLE_ECN 1 /* Early Congestion Notification (for source bitrate control) */
# SRT_DEBUG_TSBPD_OUTJITTER 1 /* Packet Delivery histogram */
# SRT_DEBUG_TRACE_DRIFT 1 /* Create a trace log for Encoder-Decoder Clock Drift */
# SRT_DEBUG_TSBPD_WRAP 1 /* Debug packet timestamp wraparound */
# SRT_DEBUG_TLPKTDROP_DROPSEQ 1
# SRT_DEBUG_SNDQ_HIGHRATE 1
# SRT_DEBUG_BONDING_STATES 1
# SRT_DEBUG_RTT 1 /* RTT trace */
# SRT_MAVG_SAMPLING_RATE 40 /* Max sampling rate */
# SRT_ENABLE_FREQUENT_LOG_TRACE 0 : set to 1 to enable printing reason for suppressed freq logs
# option defaults
set(ENABLE_HEAVY_LOGGING_DEFAULT OFF)
# Always turn logging on if the build type is debug
if (ENABLE_DEBUG)
set(ENABLE_HEAVY_LOGGING_DEFAULT ON)
endif()
# Note that the IP_PKTINFO has a limited portability and may not work on some platforms
# (Windows, FreeBSD, ...).
set (ENABLE_PKTINFO_DEFAULT OFF)
set(ENABLE_STDCXX_SYNC_DEFAULT OFF)
set(ENABLE_MONOTONIC_CLOCK_DEFAULT OFF)
set(MONOTONIC_CLOCK_LINKLIB "")
if (MICROSOFT)
set(ENABLE_STDCXX_SYNC_DEFAULT ON)
elseif (POSIX)
test_requires_clock_gettime(ENABLE_MONOTONIC_CLOCK_DEFAULT MONOTONIC_CLOCK_LINKLIB)
endif()
# options
option(CYGWIN_USE_POSIX "Should the POSIX API be used for cygwin. Ignored if the system isn't cygwin." OFF)
if (CMAKE_CXX_COMPILER_ID MATCHES "^GNU$" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.7)
option(ENABLE_CXX11 "Should the c++11 parts (srt-live-transmit) be enabled" OFF)
else()
option(ENABLE_CXX11 "Should the c++11 parts (srt-live-transmit) be enabled" ON)
endif()
option(ENABLE_APPS "Should the Support Applications be Built?" ON)
option(ENABLE_BONDING "Should the bonding functionality be enabled?" OFF)
option(ENABLE_TESTING "Should the Developer Test Applications be Built?" OFF)
option(ENABLE_PROFILE "Should instrument the code for profiling. Ignored for non-GNU compiler." $ENV{HAI_BUILD_PROFILE})
option(ENABLE_LOGGING "Should logging be enabled" ON)
option(ENABLE_HEAVY_LOGGING "Should heavy debug logging be enabled" ${ENABLE_HEAVY_LOGGING_DEFAULT})
option(ENABLE_HAICRYPT_LOGGING "Should logging in haicrypt be enabled" 0)
option(ENABLE_SHARED "Should libsrt be built as a shared library" ON)
option(ENABLE_STATIC "Should libsrt be built as a static library" ON)
option(ENABLE_PKTINFO "Enable using IP_PKTINFO to allow the listener extracting the target IP address from incoming packets" ${ENABLE_PKTINFO_DEFAULT})
option(ENABLE_RELATIVE_LIBPATH "Should application contain relative library paths, like ../lib" OFF)
option(ENABLE_GETNAMEINFO "In-logs sockaddr-to-string should do rev-dns" OFF)
option(ENABLE_UNITTESTS "Enable unit tests" OFF)
option(ENABLE_ENCRYPTION "Enable encryption in SRT" ON)
option(ENABLE_AEAD_API_PREVIEW "Enable AEAD API preview in SRT" Off)
option(ENABLE_MAXREXMITBW "Enable SRTO_MAXREXMITBW (v1.6.0 API preview)" Off)
option(ENABLE_CXX_DEPS "Extra library dependencies in srt.pc for the CXX libraries useful with C language" ON)
option(USE_STATIC_LIBSTDCXX "Should use static rather than shared libstdc++" OFF)
option(ENABLE_INET_PTON "Set to OFF to prevent usage of inet_pton when building against modern SDKs while still requiring compatibility with older Windows versions, such as Windows XP, Windows Server 2003 etc." ON)
option(ENABLE_CODE_COVERAGE "Enable code coverage reporting" OFF)
option(ENABLE_MONOTONIC_CLOCK "Enforced clock_gettime with monotonic clock on GC CV" ${ENABLE_MONOTONIC_CLOCK_DEFAULT})
option(ENABLE_STDCXX_SYNC "Use C++11 chrono and threads for timing instead of pthreads" ${ENABLE_STDCXX_SYNC_DEFAULT})
option(USE_OPENSSL_PC "Use pkg-config to find OpenSSL libraries" ON)
option(SRT_USE_OPENSSL_STATIC_LIBS "Link OpenSSL libraries statically." OFF)
option(USE_BUSY_WAITING "Enable more accurate sending times at a cost of potentially higher CPU load" OFF)
option(USE_GNUSTL "Get c++ library/headers from the gnustl.pc" OFF)
option(ENABLE_SOCK_CLOEXEC "Enable setting SOCK_CLOEXEC on a socket" ON)
option(ENABLE_SHOW_PROJECT_CONFIG "Enable show Project Configuration" OFF)
option(ENABLE_CLANG_TSA "Enable Clang Thread Safety Analysis" OFF)
if (DEFINED OPENSSL_USE_STATIC_LIBS AND "${OPENSSL_USE_STATIC_LIBS}" STREQUAL "ON")
message(WARNING "Use of OPENSSL_USE_STATIC_LIBS as SRT build option here is deprecated.
Please use SRT_USE_OPENSSL_STATIC_LIBS instead.")
set(SRT_USE_OPENSSL_STATIC_LIBS ${OPENSSL_USE_STATIC_LIBS})
endif()
# NOTE: Use ATOMIC_USE_SRT_SYNC_MUTEX and will override the auto-detection of the
# Atomic implemetation in srtcore/atomic.h.
option(ATOMIC_USE_SRT_SYNC_MUTEX "Use srt::sync::Mutex to Implement Atomics" OFF)
if (ATOMIC_USE_SRT_SYNC_MUTEX)
add_definitions(-DATOMIC_USE_SRT_SYNC_MUTEX=1)
endif()
set(TARGET_srt "srt" CACHE STRING "The name for the SRT library")
# Use application-defined group reader
# (currently the only one implemented)
add_definitions(-DSRT_ENABLE_APP_READER)
# XXX This was added once as experimental, it is now in force for
# write-blocking-mode sockets. Still unclear if all issues around
# closing while data still not written are eliminated.
add_definitions(-DSRT_ENABLE_CLOSE_SYNCH)
if (NOT ENABLE_LOGGING)
set (ENABLE_HEAVY_LOGGING OFF)
message(STATUS "LOGGING: DISABLED")
else()
if (ENABLE_HEAVY_LOGGING)
message(STATUS "LOGGING: HEAVY")
else()
message(STATUS "LOGGING: ENABLED")
endif()
endif()
if (USE_BUSY_WAITING)
message(STATUS "USE_BUSY_WAITING: ON")
list(APPEND SRT_EXTRA_CFLAGS "-DUSE_BUSY_WAITING=1")
else()
message(STATUS "USE_BUSY_WAITING: OFF (default)")
endif()
# Reduce the frequency of some frequent logs, milliseconds
set(SRT_LOG_SLOWDOWN_FREQ_MS_DEFAULT 1000) # 1s
if (NOT DEFINED SRT_LOG_SLOWDOWN_FREQ_MS)
if (ENABLE_HEAVY_LOGGING)
set(SRT_LOG_SLOWDOWN_FREQ_MS 0) # Just show every log message.
else()
set(SRT_LOG_SLOWDOWN_FREQ_MS ${SRT_LOG_SLOWDOWN_FREQ_MS_DEFAULT})
endif()
endif()
if ( CYGWIN AND NOT CYGWIN_USE_POSIX )
set(WIN32 1)
set(CMAKE_LEGACY_CYGWIN_WIN32 1)
add_definitions(-DWIN32=1 -DCYGWIN=1)
message(STATUS "HAVE CYGWIN. Setting backward compat CMAKE_LEGACY_CYGWIN_WIN32 and -DWIN32")
endif()
if (NOT USE_ENCLIB)
if (USE_GNUTLS)
message("NOTE: USE_GNUTLS is deprecated. Use -DUSE_ENCLIB=gnutls instead.")
set (USE_ENCLIB gnutls)
else()
set (USE_ENCLIB openssl-evp)
endif()
endif()
set(USE_ENCLIB "${USE_ENCLIB}" CACHE STRING "The crypto library that SRT uses")
set_property(CACHE USE_ENCLIB PROPERTY STRINGS "openssl" "openssl-evp" "gnutls" "mbedtls" "botan")
# Make sure DLLs and executabes go to the same path regardles of subdirectory
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
if (NOT DEFINED WITH_COMPILER_TYPE)
# This is for a case when you provided the prefix, but you didn't
# provide compiler type. This option is in this form predicted to work
# only on POSIX systems. Just typical compilers for Linux and Mac are
# included.
if (DARWIN)
set (WITH_COMPILER_TYPE clang)
elseif (POSIX) # Posix, but not DARWIN
set(WITH_COMPILER_TYPE gcc)
else()
get_filename_component(WITH_COMPILER_TYPE ${CMAKE_C_COMPILER} NAME)
endif()
set (USING_DEFAULT_COMPILER_PREFIX 1)
endif()
if (NOT USING_DEFAULT_COMPILER_PREFIX OR DEFINED WITH_COMPILER_PREFIX)
message(STATUS "Handling compiler with PREFIX=${WITH_COMPILER_PREFIX} TYPE=${WITH_COMPILER_TYPE}")
parse_compiler_type(${WITH_COMPILER_TYPE} COMPILER_TYPE COMPILER_SUFFIX)
if (${COMPILER_TYPE} STREQUAL gcc)
set (CMAKE_C_COMPILER ${WITH_COMPILER_PREFIX}gcc${COMPILER_SUFFIX})
set (CMAKE_CXX_COMPILER ${WITH_COMPILER_PREFIX}g++${COMPILER_SUFFIX})
set (HAVE_COMPILER_GNU_COMPAT 1)
elseif (${COMPILER_TYPE} STREQUAL cc)
set (CMAKE_C_COMPILER ${WITH_COMPILER_PREFIX}cc${COMPILER_SUFFIX})
set (CMAKE_CXX_COMPILER ${WITH_COMPILER_PREFIX}c++${COMPILER_SUFFIX})
set (HAVE_COMPILER_GNU_COMPAT 1)
elseif (${COMPILER_TYPE} STREQUAL icc)
set (CMAKE_C_COMPILER ${WITH_COMPILER_PREFIX}icc${COMPILER_SUFFIX})
set (CMAKE_CXX_COMPILER ${WITH_COMPILER_PREFIX}icpc${COMPILER_SUFFIX})
set (HAVE_COMPILER_GNU_COMPAT 1)
else()
# Use blindly <command> for C compiler and <command>++ for C++.
# At least this matches clang.
set (CMAKE_C_COMPILER ${WITH_COMPILER_PREFIX}${WITH_COMPILER_TYPE})
set (CMAKE_CXX_COMPILER ${WITH_COMPILER_PREFIX}${COMPILER_TYPE}++${COMPILER_SUFFIX})
if (${COMPILER_TYPE} STREQUAL clang)
set (HAVE_COMPILER_GNU_COMPAT 1)
endif()
endif()
message(STATUS "Compiler type: ${WITH_COMPILER_TYPE}. C: ${CMAKE_C_COMPILER}; C++: ${CMAKE_CXX_COMPILER}")
unset(USING_DEFAULT_COMPILER_PREFIX)
else()
message(STATUS "No WITH_COMPILER_PREFIX - using C++ compiler ${CMAKE_CXX_COMPILER}")
endif()
if (DEFINED WITH_SRT_TARGET)
set (TARGET_haisrt ${WITH_SRT_TARGET})
endif()
# When you use crosscompiling, you have to take care that PKG_CONFIG_PATH
# and CMAKE_PREFIX_PATH are set properly.
# symbol exists in win32, but function does not.
if(WIN32)
if(ENABLE_INET_PTON)
set(CMAKE_REQUIRED_LIBRARIES ws2_32)
check_function_exists(inet_pton HAVE_INET_PTON)
try_compile(AT_LEAST_VISTA
${CMAKE_BINARY_DIR}
"${CMAKE_CURRENT_SOURCE_DIR}/scripts/test_vista.c")
if(NOT AT_LEAST_VISTA)
# force targeting Vista
add_definitions(-D_WIN32_WINNT=0x0600)
endif()
else()
add_definitions(-D_WIN32_WINNT=0x0501)
endif()
else()
check_function_exists(inet_pton HAVE_INET_PTON)
endif()
if (DEFINED HAVE_INET_PTON)
add_definitions(-DHAVE_INET_PTON=1)
endif()
# Defines HAVE_PTHREAD_GETNAME_* and HAVE_PTHREAD_SETNAME_*
include(FindPThreadGetSetName)
FindPThreadGetSetName()
if (ENABLE_MONOTONIC_CLOCK)
if (NOT ENABLE_MONOTONIC_CLOCK_DEFAULT)
message(FATAL_ERROR "Your platform does not support CLOCK_MONOTONIC. Build with -DENABLE_MONOTONIC_CLOCK=OFF.")
endif()
set (WITH_EXTRALIBS "${WITH_EXTRALIBS} ${MONOTONIC_CLOCK_LINKLIB}")
add_definitions(-DENABLE_MONOTONIC_CLOCK=1)
endif()
if (ENABLE_ENCRYPTION)
if ("${USE_ENCLIB}" STREQUAL "gnutls")
set (SSL_REQUIRED_MODULES "gnutls nettle")
if (WIN32)
if (MINGW)
set (SSL_REQUIRED_MODULES "${SSL_REQUIRED_MODULES} zlib")
endif()
endif()
pkg_check_modules (SSL REQUIRED ${SSL_REQUIRED_MODULES})
add_definitions(
-DUSE_GNUTLS=1
)
link_directories(
${SSL_LIBRARY_DIRS}
)
elseif ("${USE_ENCLIB}" STREQUAL "mbedtls")
add_definitions(-DUSE_MBEDTLS=1)
if ("${SSL_LIBRARY_DIRS}" STREQUAL "")
set(MBEDTLS_PREFIX "${CMAKE_PREFIX_PATH}" CACHE PATH "The path of mbedtls")
find_package(MbedTLS REQUIRED)
set (SSL_INCLUDE_DIRS ${MBEDTLS_INCLUDE_DIR})
set (SSL_LIBRARIES ${MBEDTLS_LIBRARIES})
endif()
if (WIN32)
set (SSL_LIBRARIES ${SSL_LIBRARIES} bcrypt)
endif()
if ("${SSL_LIBRARIES}" STREQUAL "")
set (SSL_LIBRARIES mbedtls mbedcrypto)
endif()
message(STATUS "SSL enforced mbedtls: -I ${SSL_INCLUDE_DIRS} -l;${SSL_LIBRARIES}")
foreach(LIB ${SSL_LIBRARIES})
if(IS_ABSOLUTE ${LIB} AND EXISTS ${LIB})
set (SRT_LIBS_PRIVATE ${SRT_LIBS_PRIVATE} ${LIB})
else()
set(SRT_LIBS_PRIVATE ${SRT_LIBS_PRIVATE} "-l${LIB}")
endif()
endforeach()
elseif ("${USE_ENCLIB}" STREQUAL "openssl-evp")
# Openssl-EVP requires CRYSPR2
add_definitions(-DUSE_OPENSSL_EVP=1 -DCRYSPR2)
set (SSL_REQUIRED_MODULES "openssl libcrypto")
# Try using pkg-config method first if enabled,
# fall back to find_package method otherwise
if (USE_OPENSSL_PC)
pkg_check_modules(SSL ${SSL_REQUIRED_MODULES})
if (SRT_USE_OPENSSL_STATIC_LIBS)
# use `pkg-config --static xxx` found libs
set(SSL_LIBRARIES ${SSL_STATIC_LIBRARIES})
endif()
endif()
if (SSL_FOUND)
# We have some cases when pkg-config is improperly configured
# When it doesn't ship the -L and -I options, and the CMAKE_PREFIX_PATH
# is set (also through `configure`), then we have this problem. If so,
# set forcefully the -I and -L contents to prefix/include and
# prefix/lib.
if ("${SSL_LIBRARY_DIRS}" STREQUAL "")
if (NOT "${CMAKE_PREFIX_PATH}" STREQUAL "")
message(STATUS "WARNING: pkg-config has incorrect prefix - enforcing target path prefix: ${CMAKE_PREFIX_PATH}")
set (SSL_LIBRARY_DIRS ${CMAKE_PREFIX_PATH}/${CMAKE_INSTALL_LIBDIR})
set (SSL_INCLUDE_DIRS ${CMAKE_PREFIX_PATH}/include)
endif()
endif()
link_directories(
${SSL_LIBRARY_DIRS}
)
message(STATUS "SSL via pkg-config: -L ${SSL_LIBRARY_DIRS} -I ${SSL_INCLUDE_DIRS} -l;${SSL_LIBRARIES}")
else()
if (SRT_USE_OPENSSL_STATIC_LIBS)
# use `pkg-config --static xxx` found libs
set(OPENSSL_USE_STATIC_LIBS True)
set(OPENSSL_MSVC_STATIC_RT True)
endif()
find_package(OpenSSL REQUIRED)
set (SSL_INCLUDE_DIRS ${OPENSSL_INCLUDE_DIR})
set (SSL_LIBRARIES ${OPENSSL_LIBRARIES})
message(STATUS "SSL via find_package(OpenSSL): -I ${SSL_INCLUDE_DIRS} -l;${SSL_LIBRARIES}")
endif()
elseif ("${USE_ENCLIB}" STREQUAL "botan")
add_definitions(-DUSE_BOTAN=1 -DCRYSPR2)
set (SSL_REQUIRED_MODULES "botan")
find_package(Botan 3.0.0 REQUIRED)
botan_generate(
botan
ffi
nist_keywrap
aes_armv8
aes_ni
aes_power8
aes_vperm
idea_sse2
serpent_avx2
shacal2_armv8
shacal2_avx2
shacal2_x86
sm4_armv8
rdseed
sha1_armv8
sha1_sse2
sha1_x86
sha2_32_armv8
sha2_32_bmi2
sha2_32_x86
sha2_64_bmi2
sha3_bmi2
zfec_sse2
zfec_vperm
argon2_avx2
argon2_ssse3
processor_rng
chacha_avx2
ghash_cpu
ghash_vperm
simd
simd_avx2)
target_compile_features("botan" PRIVATE "cxx_std_20")
set (SSL_INCLUDE_DIRS ${CMAKE_CURRENT_BINARY_DIR})
set (SSL_LIBRARIES "botan")
else() # openssl
# Openssl (Direct-AES API) can use CRYSPR2
add_definitions(-DUSE_OPENSSL=1 -DCRYSPR2)
set (SSL_REQUIRED_MODULES "openssl libcrypto")
# Try using pkg-config method first if enabled,
# fall back to find_package method otherwise
if (USE_OPENSSL_PC)
pkg_check_modules(SSL ${SSL_REQUIRED_MODULES})
if (SRT_USE_OPENSSL_STATIC_LIBS)
# use `pkg-config --static xxx` found libs
set(SSL_LIBRARIES ${SSL_STATIC_LIBRARIES})
endif()
endif()
if (SSL_FOUND)
# We have some cases when pkg-config is improperly configured
# When it doesn't ship the -L and -I options, and the CMAKE_PREFIX_PATH
# is set (also through `configure`), then we have this problem. If so,
# set forcefully the -I and -L contents to prefix/include and
# prefix/lib.
if ("${SSL_LIBRARY_DIRS}" STREQUAL "")
if (NOT "${CMAKE_PREFIX_PATH}" STREQUAL "")
message(STATUS "WARNING: pkg-config has incorrect prefix - enforcing target path prefix: ${CMAKE_PREFIX_PATH}")
set (SSL_LIBRARY_DIRS ${CMAKE_PREFIX_PATH}/${CMAKE_INSTALL_LIBDIR})
set (SSL_INCLUDE_DIRS ${CMAKE_PREFIX_PATH}/include)
endif()
endif()
link_directories(
${SSL_LIBRARY_DIRS}
)
message(STATUS "SSL via pkg-config: -L ${SSL_LIBRARY_DIRS} -I ${SSL_INCLUDE_DIRS} -l;${SSL_LIBRARIES}")
else()
if (SRT_USE_OPENSSL_STATIC_LIBS)
# use `pkg-config --static xxx` found libs
set(OPENSSL_USE_STATIC_LIBS True)
set(OPENSSL_MSVC_STATIC_RT True)
endif()
find_package(OpenSSL REQUIRED)
set (SSL_INCLUDE_DIRS ${OPENSSL_INCLUDE_DIR})
set (SSL_LIBRARIES ${OPENSSL_LIBRARIES})
message(STATUS "SSL via find_package(OpenSSL): -I ${SSL_INCLUDE_DIRS} -l;${SSL_LIBRARIES}")
endif()
endif()
add_definitions(-DSRT_ENABLE_ENCRYPTION)
message(STATUS "ENCRYPTION: ENABLED, using: ${SSL_REQUIRED_MODULES}")
message (STATUS "SSL libraries: ${SSL_LIBRARIES}")
if (ENABLE_AEAD_API_PREVIEW)
if (("${USE_ENCLIB}" STREQUAL "openssl-evp") OR ("${USE_ENCLIB}" STREQUAL "botan"))
add_definitions(-DENABLE_AEAD_API_PREVIEW)
message(STATUS "ENCRYPTION AEAD API: ENABLED")
else()
message(FATAL_ERROR "ENABLE_AEAD_API_PREVIEW is only available with USE_ENCLIB=[openssl-evp | botan]!")
endif()
else()
message(STATUS "ENCRYPTION AEAD API: DISABLED")
endif()
else()
message(STATUS "ENCRYPTION: DISABLED")
message(STATUS "ENCRYPTION AEAD API: N/A")
endif()
if (USE_GNUSTL)
pkg_check_modules (GNUSTL REQUIRED gnustl)
link_directories(${GNUSTL_LIBRARY_DIRS})
include_directories(${GNUSTL_INCLUDE_DIRS})
set (SRT_LIBS_PRIVATE ${SRT_LIBS_PRIVATE} ${GNUSTL_LIBRARIES} ${GNUSTL_LDFLAGS})
endif()
if (ENABLE_MAXREXMITBW)
add_definitions(-DENABLE_MAXREXMITBW)
message(STATUS "MAXREXMITBW API: ENABLED")
else()
message(STATUS "MAXREXMITBW API: DISABLED")
endif()
if (USING_DEFAULT_COMPILER_PREFIX)
# Detect if the compiler is GNU compatible for flags
if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Intel|Clang|AppleClang")
message(STATUS "COMPILER: ${CMAKE_CXX_COMPILER_ID} (${CMAKE_CXX_COMPILER}) - GNU compat")
set(HAVE_COMPILER_GNU_COMPAT 1)
# See https://gcc.gnu.org/projects/cxx-status.html
# At the bottom there's information about C++98, which is default up to 6.1 version.
# For all other compilers - including Clang - we state that the default C++ standard is AT LEAST 11.
if (${CMAKE_CXX_COMPILER_ID} STREQUAL GNU AND ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 6.1)
message(STATUS "NOTE: GCC ${CMAKE_CXX_COMPILER_VERSION} is detected with default C++98. Forcing C++11 on applications.")
set (FORCE_CXX_STANDARD 1)
elseif (${CMAKE_CXX_COMPILER_ID} MATCHES "Clang|AppleClang")
message(STATUS "NOTE: CLANG ${CMAKE_CXX_COMPILER_VERSION} detected, unsure if >=C++11 is default, forcing C++11 on applications")
set (FORCE_CXX_STANDARD 1)
else()
message(STATUS "NOTE: ${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION} - assuming default C++11.")
endif()
else()
message(STATUS "COMPILER: ${CMAKE_CXX_COMPILER_ID} (${CMAKE_CXX_COMPILER}) - NOT GNU compat")
set(HAVE_COMPILER_GNU_COMPAT 0)
endif()
else() # Compiler altered by WITH_COMPILER_TYPE/PREFIX - can't rely on CMAKE_CXX_*
# Force the C++ standard as C++11
# HAVE_COMPILER_GNU_COMPAT was set in the handler of WITH_COMPILER_TYPE
set (FORCE_CXX_STANDARD 1)
message(STATUS "COMPILER CHANGED TO: ${COMPILER_TYPE} - forcing C++11 standard for apps")
endif()
# Check for GCC Atomic Intrinsics and C++11 Atomics.
# Sets:
# HAVE_LIBATOMIC
# HAVE_LIBATOMIC_COMPILES
# HAVE_LIBATOMIC_COMPILES_STATIC
# HAVE_GCCATOMIC_INTRINSICS
# HAVE_GCCATOMIC_INTRINSICS_REQUIRES_LIBATOMIC
include(CheckGCCAtomicIntrinsics)
CheckGCCAtomicIntrinsics()
# HAVE_CXX_ATOMIC
# HAVE_CXX_ATOMIC_STATIC
include(CheckCXXAtomic)
CheckCXXAtomic()
# Check for std::put_time():
# Sets:
# HAVE_CXX_STD_PUT_TIME
include(CheckCXXStdPutTime)
CheckCXXStdPutTime()
if (HAVE_CXX_STD_PUT_TIME)
add_definitions(-DHAVE_CXX_STD_PUT_TIME=1)
endif()
if (DISABLE_CXX11)
set (ENABLE_CXX11 0)
elseif( DEFINED ENABLE_CXX11 )
else()
set (ENABLE_CXX11 1)
endif()
function (srt_check_cxxstd stdval OUT_STD OUT_PFX)
set (STDPFX c++)
if (stdval MATCHES "([^+]+\\++)([0-9]*)")
set (STDPFX ${CMAKE_MATCH_1})
set (STDCXX ${CMAKE_MATCH_2})
elseif (stdval MATCHES "[0-9]*")
set (STDCXX ${stdval})
else()
set (STDCXX 0)
endif()
# Handle C++98 < C++11
# Please fix this around 2070 year.
if (${STDCXX} GREATER 80)
set (STDCXX 03)
endif()
# return
set (${OUT_STD} ${STDCXX} PARENT_SCOPE)
set (${OUT_PFX} ${STDPFX} PARENT_SCOPE)
endfunction()
if (NOT ENABLE_CXX11)
message(WARNING "Parts that require C++11 support will be disabled (srt-live-transmit)")
if (ENABLE_STDCXX_SYNC)
message(FATAL_ERROR "ENABLE_STDCXX_SYNC is set, but C++11 is disabled by ENABLE_CXX11")
endif()
elseif (ENABLE_STDCXX_SYNC)
add_definitions(-DENABLE_STDCXX_SYNC=1)
if (DEFINED USE_CXX_STD)
srt_check_cxxstd(${USE_CXX_STD} STDCXX STDPFX)
# If defined, make sure it's at least C++11
if (${STDCXX} LESS 11)
message(FATAL_ERROR "If ENABLE_STDCXX_SYNC, then USE_CXX_STD must specify at least C++11")
endif()
else()
set (USE_CXX_STD 11)
endif()
endif()
message(STATUS "STDCXX_SYNC: ${ENABLE_STDCXX_SYNC}")
message(STATUS "MONOTONIC_CLOCK: ${ENABLE_MONOTONIC_CLOCK}")
if (ENABLE_SOCK_CLOEXEC)
add_definitions(-DENABLE_SOCK_CLOEXEC=1)
endif()
if (CMAKE_MAJOR_VERSION LESS 3)
set (FORCE_CXX_STANDARD_GNUONLY 1)
endif()
if (DEFINED USE_CXX_STD)
srt_check_cxxstd(${USE_CXX_STD} STDCXX STDPFX)
if (${STDCXX} EQUAL 0)
message(FATAL_ERROR "USE_CXX_STD: Must specify 03/11/14/17/20 possibly with c++/gnu++ prefix")
endif()
if (NOT STDCXX STREQUAL "")
if (${STDCXX} LESS 11)
if (ENABLE_STDCXX_SYNC)
message(FATAL_ERROR "If ENABLE_STDCXX_SYNC, then you can't USE_CXX_STD less than 11")
endif()
# Set back to 98 because cmake doesn't understand 03.
set (STDCXX 98)
# This enforces C++03 standard on SRT.
# Apps still use C++11
# Set this through independent flags
set (USE_CXX_STD_LIB ${STDCXX})
set (FORCE_CXX_STANDARD 1)
if (NOT ENABLE_APPS)
set (USE_CXX_STD_APP ${STDCXX})
message(STATUS "C++ STANDARD: library: C++${STDCXX}, apps disabled (examples will follow C++${STDCXX})")
else()
set (USE_CXX_STD_APP "")
message(STATUS "C++ STANDARD: library: C++${STDCXX}, but apps still at least C++11")
endif()
elseif (FORCE_CXX_STANDARD_GNUONLY)
# CMake is too old to handle CMAKE_CXX_STANDARD,
# use bare GNU options.
set (FORCE_CXX_STANDARD 1)
set (USE_CXX_STD_APP ${STDCXX})
set (USE_CXX_STD_LIB ${STDCXX})
message(STATUS "C++ STANDARD: using C++${STDCXX} for all - GNU only")
else()
# This enforces this standard on both apps and library,
# so set this as global C++ standard option
set (CMAKE_CXX_STANDARD ${STDCXX})
unset (FORCE_CXX_STANDARD)
# Do not set variables to not duplicate flags
set (USE_CXX_STD_LIB "")
set (USE_CXX_STD_APP "")
message(STATUS "C++ STANDARD: using C++${STDCXX} for all")
endif()
message(STATUS "C++: Setting C++ standard for gnu compiler: lib: ${USE_CXX_STD_LIB} apps: ${USE_CXX_STD_APP}")
endif()
else()
set (USE_CXX_STD_LIB "")
set (USE_CXX_STD_APP "")
endif()
if (FORCE_CXX_STANDARD)
message(STATUS "C++ STD: Forcing C++11 on applications")
if (USE_CXX_STD_APP STREQUAL "")
set (USE_CXX_STD_APP 11)
endif()
if (USE_CXX_STD_LIB STREQUAL "" AND ENABLE_STDCXX_SYNC)
message(STATUS "C++ STD: Forcing C++11 on library, as C++11 sync requested")
set (USE_CXX_STD_LIB 11)
endif()
endif()
# add extra warning flags for gccish compilers
if (HAVE_COMPILER_GNU_COMPAT)
set (SRT_GCC_WARN "-Wall -Wextra")
if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0 AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set (SRT_GCC_WARN "${SRT_GCC_WARN} -Wshadow=local")
endif()
else()
# cpp debugging on Windows :D
#set (SRT_GCC_WARN "/showIncludes")
endif()
if (USE_STATIC_LIBSTDCXX)
if (HAVE_COMPILER_GNU_COMPAT)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static-libstdc++")
else()
message(FATAL_ERROR "On non-GNU-compat compiler it's not known how to use static C++ standard library.")
endif()
endif()
# This options is necessary on some systems; on a cross-ARM compiler it
# has been detected, for example, that -lrt is necessary for some applications
# because clock_gettime is needed by some functions and it is alternatively
# provided by libc, but only in newer versions. This options is rarely necessary,
# but may help in several corner cases in unusual platforms.
if (WITH_EXTRALIBS)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${WITH_EXTRALIBS}")
endif()
# CMake has only discovered in 3.3 version that some set-finder is
# necessary. Using variables for shortcut to a clumsy check syntax.
set (srt_libspec_shared ${ENABLE_SHARED})
set (srt_libspec_static ${ENABLE_STATIC})
set (srtpack_libspec_common)
if (srt_libspec_shared)
list(APPEND srtpack_libspec_common ${TARGET_srt}_shared)
endif()
if (srt_libspec_static)
list(APPEND srtpack_libspec_common ${TARGET_srt}_static)
endif()
set (SRT_SRC_HAICRYPT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/haicrypt)
set (SRT_SRC_SRTCORE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/srtcore)
set (SRT_SRC_COMMON_DIR ${CMAKE_CURRENT_SOURCE_DIR}/common)
set (SRT_SRC_TOOLS_DIR ${CMAKE_CURRENT_SOURCE_DIR}/tools)
set (SRT_SRC_TEST_DIR ${CMAKE_CURRENT_SOURCE_DIR}/test)
if(WIN32)
message(STATUS "DETECTED SYSTEM: WINDOWS; WIN32=1; PTW32_STATIC_LIB=1")
add_definitions(-DWIN32=1 -DPTW32_STATIC_LIB=1)
elseif(DARWIN)
message(STATUS "DETECTED SYSTEM: DARWIN")
elseif(BSD)
message(STATUS "DETECTED SYSTEM: BSD; BSD=1")
add_definitions(-DBSD=1)
elseif(LINUX)
add_definitions(-DLINUX=1)
message(STATUS "DETECTED SYSTEM: LINUX; LINUX=1" )
elseif(ANDROID)
add_definitions(-DLINUX=1)
message(STATUS "DETECTED SYSTEM: ANDROID; LINUX=1" )
elseif(CYGWIN)
add_definitions(-DCYGWIN=1)
message(STATUS "DETECTED SYSTEM: CYGWIN (posix mode); CYGWIN=1")
elseif(GNU)
add_definitions(-DGNU=1)
message(STATUS "DETECTED SYSTEM: GNU; GNU=1" )
elseif(SUNOS)
add_definitions(-DSUNOS=1)
message(STATUS "DETECTED SYSTEM: SunOS|Solaris; SUNOS=1" )
else()
message(FATAL_ERROR "Unsupported system: ${CMAKE_SYSTEM_NAME}")
endif()
add_definitions(
-D_GNU_SOURCE
-DHAI_PATCH=1
-DHAI_ENABLE_SRT=1
-DSRT_VERSION="${SRT_VERSION}"
)
if (LINUX)
# This is an option supported only on Linux
add_definitions(-DSRT_ENABLE_BINDTODEVICE)
endif()
# This is obligatory include directory for all targets. This is only
# for private headers. Installable headers should be exclusively used DIRECTLY.
include_directories(${SRT_SRC_COMMON_DIR} ${SRT_SRC_SRTCORE_DIR} ${SRT_SRC_HAICRYPT_DIR})
if (ENABLE_LOGGING)
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_LOGGING=1")
if (ENABLE_HEAVY_LOGGING)
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_HEAVY_LOGGING=1")
endif()
if (ENABLE_HAICRYPT_LOGGING)
if (ENABLE_HAICRYPT_LOGGING STREQUAL 2) # Allow value 2 for INSECURE DEBUG logging
message(WARNING " *** ENABLED INSECURE HAICRYPT LOGGING - USE FOR TESTING ONLY!!! ***")
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_HAICRYPT_LOGGING=2")
else()
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_HAICRYPT_LOGGING=1")
endif()
endif()
endif()
if (ENABLE_GETNAMEINFO)
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_GETNAMEINFO=1")
endif()
if (ENABLE_PKTINFO)
if (WIN32 OR BSD)
message(FATAL_ERROR "PKTINFO is not implemented on Windows or *BSD.")
endif()
list(APPEND SRT_EXTRA_CFLAGS "-DSRT_ENABLE_PKTINFO=1")
endif()
# ENABLE_EXPERIMENTAL_BONDING is deprecated. Use ENABLE_BONDING. ENABLE_EXPERIMENTAL_BONDING is be removed in v1.6.0.
if (ENABLE_EXPERIMENTAL_BONDING)
message(DEPRECATION "ENABLE_EXPERIMENTAL_BONDING is deprecated. Please use ENABLE_BONDING instead.")
set (ENABLE_BONDING ON)
endif()
if (ENABLE_BONDING)
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_BONDING=1")
message(STATUS "ENABLE_BONDING: ON")
else()
message(STATUS "ENABLE_BONDING: OFF")
endif()
if (ENABLE_THREAD_CHECK)
add_definitions(
-DSRT_ENABLE_THREADCHECK=1
-DFUGU_PLATFORM=1
-I${WITH_THREAD_CHECK_INCLUDEDIR}
)
endif()
if (ENABLE_CLANG_TSA)
list(APPEND SRT_EXTRA_CFLAGS "-Wthread-safety")
message(STATUS "Clang TSA: Enabled")
endif()
if (ENABLE_PROFILE)
if (HAVE_COMPILER_GNU_COMPAT)
# They are actually cflags, not definitions, but CMake is stupid enough.
add_definitions(-g -pg)
link_libraries(-g -pg)
else()
message(FATAL_ERROR "Profiling option is not supported on this platform")
endif()
endif()
if (ENABLE_CODE_COVERAGE)
if (HAVE_COMPILER_GNU_COMPAT)
add_definitions(-g -O0 --coverage)
link_libraries(--coverage)
message(STATUS "ENABLE_CODE_COVERAGE: ON")
else()
message(FATAL_ERROR "ENABLE_CODE_COVERAGE: option is not supported on this platform")
endif()
endif()
# On Linux pthreads have to be linked even when using C++11 threads
if (ENABLE_STDCXX_SYNC AND NOT LINUX)
message(STATUS "Pthread library: C++11")
elseif (PTHREAD_LIBRARY AND PTHREAD_INCLUDE_DIR)
message(STATUS "Pthread library: ${PTHREAD_LIBRARY}")
message(STATUS "Pthread include dir: ${PTHREAD_INCLUDE_DIR}")
elseif (MICROSOFT)
message(WARNING "DEPRECATION WARNING!\nUsing POSIX thread API with Windows is deprecated and will be removed")
find_package(pthreads QUIET)
if (NOT PTHREAD_INCLUDE_DIR OR NOT PTHREAD_LIBRARY)
#search package folders with GLOB to add as extra hint for headers
file(GLOB PTHREAD_PACKAGE_INCLUDE_HINT ./_packages/cinegy.pthreads-win*/sources)
if (PTHREAD_PACKAGE_INCLUDE_HINT)
message(STATUS "PTHREAD_PACKAGE_INCLUDE_HINT value: ${PTHREAD_PACKAGE_INCLUDE_HINT}")
endif()
# find pthread header
find_path(PTHREAD_INCLUDE_DIR pthread.h HINTS C:/pthread-win32/include ${PTHREAD_PACKAGE_INCLUDE_HINT})
if (PTHREAD_INCLUDE_DIR)
message(STATUS "Pthread include dir: ${PTHREAD_INCLUDE_DIR}")
else()
message(FATAL_ERROR "Failed to find pthread.h. Specify PTHREAD_INCLUDE_DIR.")
endif()
#search package folders with GLOB to add as extra hint for libs
file(GLOB PTHREAD_PACKAGE_LIB_HINT ./_packages/cinegy.pthreads-win*/runtimes/win-*/native/release)
if (PTHREAD_PACKAGE_LIB_HINT)
message(STATUS "PTHREAD_PACKAGE_LIB_HINT value: ${PTHREAD_PACKAGE_LIB_HINT}")
endif()
#find pthread library
set(PTHREAD_LIB_SUFFIX "")
if (ENABLE_DEBUG)
set(PTHREAD_LIB_SUFFIX "d")
endif ()
set(PTHREAD_COMPILER_FLAG "")
if (MICROSOFT)
set(PTHREAD_COMPILER_FLAG "V")
elseif (MINGW)
set(PTHREAD_COMPILER_FLAG "G")
endif ()
foreach(EXHAND C CE SE)
foreach(COMPAT 1 2)
list(APPEND PTHREAD_W32_LIBRARY "pthread${PTHREAD_COMPILER_FLAG}${EXHAND}${PTHREAD_LIB_SUFFIX}${COMPAT}")
endforeach()
endforeach()
find_library(PTHREAD_LIBRARY NAMES ${PTHREAD_W32_LIBRARY} pthread pthread_dll pthread_lib HINTS C:/pthread-win32/lib C:/pthread-win64/lib ${PTHREAD_PACKAGE_LIB_HINT})
if (PTHREAD_LIBRARY)
message(STATUS "Pthread library: ${PTHREAD_LIBRARY}")
else()
message(FATAL_ERROR "Failed to find pthread library. Specify PTHREAD_LIBRARY.")
endif()
endif()
else ()
find_package(Threads REQUIRED)
set(PTHREAD_LIBRARY ${CMAKE_THREAD_LIBS_INIT})
endif()
# This is required in some projects that add some other sources
# to the SRT library to be compiled together (aka "virtual library").
if (DEFINED SRT_EXTRA_LIB_INC)
include(${SRT_EXTRA_LIB_INC}.cmake)
# Expected to provide variables:
# - SOURCES_srt_extra
# - EXTRA_stransmit
endif()
# ---------------------------------------------------------------------------
# ---
# Target: haicrypt.
# Completing sources and installable headers. Flag settings will follow.
# ---
if (ENABLE_ENCRYPTION)
set (HAICRYPT_FILELIST_MAF "filelist-${USE_ENCLIB}.maf")
MafReadDir(haicrypt ${HAICRYPT_FILELIST_MAF}
SOURCES SOURCES_haicrypt
PUBLIC_HEADERS HEADERS_haicrypt
PROTECTED_HEADERS HEADERS_haicrypt
)
endif()
if (WIN32)
MafReadDir(common filelist_win32.maf
SOURCES SOURCES_common
PUBLIC_HEADERS HEADERS_srt_win32
PROTECTED_HEADERS HEADERS_srt_win32
)
message(STATUS "WINDOWS detected: adding compat sources: ${SOURCES_common}")
endif()
# Make the OBJECT library for haicrypt and srt. Then they'll be bound into
# real libraries later, either one common, or separate.
# This is needed for Xcode to properly handle CMake OBJECT Libraries