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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)
# XXX This can be potentially done in future, but there still exist
# some dependent project using cmake 2.8 - this can't be done this way.
#cmake_minimum_required (VERSION 3.0.2 FATAL_ERROR)
#project(SRT VERSION "1.4.1")
project(SRT C CXX)
set (CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/scripts")
include(haiUtil)
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"))
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 ${CMAKE_SYSTEM_NAME} MATCHES "GNU")
set_if(POSIX LINUX OR DARWIN OR BSD OR (CYGWIN AND CYGWIN_USE_POSIX))
set_if(SYMLINKABLE LINUX OR DARWIN OR BSD OR CYGWIN OR GNU)
# Not sure what to do in case of compiling by MSVC.
# This will make installdir in C:\Program Files\SRT then
# inside "bin" and "lib64" directories. At least this maintains
# the current status. Shall this be not desired, override values
# of CMAKE_INSTALL_BINDIR, CMAKE_INSTALL_LIBDIR and CMAKE_INSTALL_INCLUDEDIR.
if (NOT DEFINED CMAKE_INSTALL_LIBDIR)
include(GNUInstallDirs)
endif()
set (SRT_VERSION 1.4.1)
set_version_variables(SRT_VERSION ${SRT_VERSION})
# 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()
# 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")
elseif (ENABLE_DEBUG) # 1, ON, YES, TRUE, Y, or any other non-zero number
set (CMAKE_BUILD_TYPE "Debug")
else()
set (CMAKE_BUILD_TYPE "Release")
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_TSBPD_DRIFT 1 /* Debug Encoder-Decoder Drift) */
# SRT_DEBUG_TSBPD_WRAP 1 /* Debug packet timestamp wraparound */
# SRT_DEBUG_TLPKTDROP_DROPSEQ 1
# SRT_DEBUG_SNDQ_HIGHRATE 1
# SRT_MAVG_SAMPLING_RATE 40 /* Max sampling rate */
# 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()
# options
option(CYGWIN_USE_POSIX "Should the POSIX API be used for cygwin. Ignored if the system isn't cygwin." OFF)
option(ENABLE_CXX11 "Should the c++11 parts (srt-live-transmit) be enabled" ON)
option(ENABLE_APPS "Should the Support Applications be Built?" ON)
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_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_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 /temporary fix for #729/" OFF)
option(ENABLE_STDCXX_SYNC "Use C++11 chrono and threads for timing instead of pthreads" OFF)
option(USE_OPENSSL_PC "Use pkg-config to find OpenSSL libraries" ON)
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)
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()
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)
endif()
endif()
set(USE_ENCLIB "${USE_ENCLIB}" CACHE STRING "The crypto library that SRT uses")
set_property(CACHE USE_ENCLIB PROPERTY STRINGS "openssl" "gnutls" "mbedtls")
# 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 ${WITH_SRT_TARGET})
endif()
# When you use crosscompiling, you have to take care that PKG_CONFIG_PATH
# and CMAKE_PREFIX_PATH are set properly.
# symbol exists in win32, but function does not.
if(WIN32)
if(ENABLE_INET_PTON)
set(CMAKE_REQUIRED_LIBRARIES ws2_32)
check_function_exists(inet_pton HAVE_INET_PTON)
add_definitions(-D_WIN32_WINNT=0x0600)
else()
add_definitions(-D_WIN32_WINNT=0x0501)
endif()
else()
check_function_exists(inet_pton HAVE_INET_PTON)
endif()
if (DEFINED HAVE_INET_PTON)
add_definitions(-DHAVE_INET_PTON=1)
endif()
if (ENABLE_MONOTONIC_CLOCK)
add_definitions(-DENABLE_MONOTONIC_CLOCK=1)
endif()
if (ENABLE_ENCRYPTION)
if ("${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(
${SSL_LIBRARY_DIRS}
)
else() # Common for mbedtls and openssl
if ("${USE_ENCLIB}" STREQUAL "mbedtls")
add_definitions(-DUSE_MBEDTLS=1)
set (SSL_REQUIRED_MODULES "mbedtls mbedcrypto")
else()
add_definitions(-DUSE_OPENSSL=1)
set (SSL_REQUIRED_MODULES "openssl libcrypto")
endif()
# Try using pkg-config method first if enabled,
# fall back to find_package method otherwise
if (USE_OPENSSL_PC)
pkg_check_modules(SSL ${SSL_REQUIRED_MODULES})
endif()
if (SSL_FOUND)
# We have some cases when pkg-config is improperly configured
# When it doesn't ship the -L and -I options, and the CMAKE_PREFIX_PATH
# is set (also through `configure`), then we have this problem. If so,
# set forcefully the -I and -L contents to prefix/include and
# prefix/lib.
if ("${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 ("${USE_ENCLIB}" STREQUAL "mbedtls")
if ("${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 ${MBEDTLS_LIBRARIES})
endif()
if ("${SSL_LIBRARIES}" STREQUAL "")
set (SSL_LIBRARIES mbedtls mbedcrypto)
endif()
message(STATUS "SSL enforced mbedtls: -I ${SSL_INCLUDE_DIRS} -l;${SSL_LIBRARIES}")
else()
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()
endif()
add_definitions(-DSRT_ENABLE_ENCRYPTION)
message(STATUS "ENCRYPTION: ENABLED, using: ${SSL_REQUIRED_MODULES}")
message (STATUS "SSL libraries: ${SSL_LIBRARIES}")
else()
message(STATUS "ENCRYPTION: DISABLED")
endif()
if (USE_GNUSTL)
pkg_check_modules (GNUSTL REQUIRED gnustl)
link_directories(${GNUSTL_LIBRARY_DIRS})
include_directories(${GNUSTL_INCLUDE_DIRS})
set (SRT_LIBS_PRIVATE ${SRT_LIBS_PRIVATE} ${GNUSTL_LIBRARIES} ${GNUSTL_LDFLAGS})
endif()
if (USING_DEFAULT_COMPILER_PREFIX)
# Detect if the compiler is GNU compatable 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()
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} ${STDPFX} PARENT_SCOPE)
endfunction()
if (NOT ENABLE_CXX11)
message(WARNING "Parts that require C++11 support will be disabled (srt-live-transmit)")
if (ENABLE_STDCXX_SYNC)
message(FATAL_ERROR "ENABLE_STDCXX_SYNC is set, but C++11 is disabled by ENABLE_CXX11")
endif()
if (DEFINED USE_CXX_STD)
message(FATAL_ERROR "USE_CXX_STD can be set only when ENABLE_CXX11 is on")
endif()
elseif (ENABLE_STDCXX_SYNC)
add_definitions(-DENABLE_STDCXX_SYNC=1)
if (DEFINED USE_CXX_STD)
srt_check_cxxstd(${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: ${ENABLE_STDCXX_SYNC}")
if (CMAKE_MAJOR_VERSION LESS 3)
set (FORCE_CXX_STANDARD_GNUONLY 1)
endif()
if (DEFINED USE_CXX_STD)
srt_check_cxxstd(${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 ${STDCXX})
set (USE_CXX_STD_APP "")
set (FORCE_CXX_STANDARD 1)
message(STATUS "C++ STANDARD: library: C++${STDCXX}, but apps still at least C++11")
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: ${USE_CXX_STD_APP}")
endif()
else()
set (USE_CXX_STD_LIB "")
set (USE_CXX_STD_APP "")
endif()
if (FORCE_CXX_STANDARD)
message(STATUS "C++ STD: Forcing C++11 on applications")
if (USE_CXX_STD_APP STREQUAL "")
set (USE_CXX_STD_APP 11)
endif()
if (USE_CXX_STD_LIB STREQUAL "" AND ENABLE_STDCXX_SYNC)
message(STATUS "C++ STD: Forcing C++11 on library, as C++11 sync requested")
set (USE_CXX_STD_LIB 11)
endif()
endif()
# add extra warning flags for gccish compilers
if (HAVE_COMPILER_GNU_COMPAT)
set (SRT_GCC_WARN "-Wall -Wextra")
else()
# cpp debugging on Windows :D
#set (SRT_GCC_WARN "/showIncludes")
endif()
if (USE_STATIC_LIBSTDCXX)
if (HAVE_COMPILER_GNU_COMPAT)
set(CMAKE_EXE_LINKER_FLAGS "${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()
# We need clock_gettime, but on some systems this is only provided
# by librt. Check if librt is required.
if (ENABLE_MONOTONIC_CLOCK AND LINUX)
# "requires" - exits on FATAL_ERROR when clock_gettime not available
test_requires_clock_gettime(NEED_CLOCK_GETTIME)
set (WITH_EXTRALIBS "${WITH_EXTRALIBS} ${NEED_CLOCK_GETTIME}")
endif()
# This options is necessary on some systems; on a cross-ARM compiler it
# has been detected, for example, that -lrt is necessary for some applications
# because clock_gettime is needed by some functions and it is alternatively
# provided by libc, but only in newer versions. This options is rarely necessary,
# but may help in several corner cases in unusual platforms.
if (WITH_EXTRALIBS)
set(CMAKE_EXE_LINKER_FLAGS "${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; OSX=1")
add_definitions(-DOSX=1)
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)
add_definitions(-DANDROID=1)
message(STATUS "DETECTED SYSTEM: ANDROID; LINUX=1 ANDROID=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" )
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} ${SRT_SRC_HAICRYPT_DIR})
if (ENABLE_LOGGING)
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_LOGGING=1")
if (ENABLE_HEAVY_LOGGING)
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_HEAVY_LOGGING=1")
endif()
if (ENABLE_HAICRYPT_LOGGING)
if (ENABLE_HAICRYPT_LOGGING STREQUAL 2) # Allow value 2 for INSECURE DEBUG logging
message(WARNING " *** ENABLED INSECURE HAICRYPT LOGGING - USE FOR TESTING ONLY!!! ***")
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_HAICRYPT_LOGGING=2")
else()
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_HAICRYPT_LOGGING=1")
endif()
endif()
endif()
if (ENABLE_GETNAMEINFO)
list(APPEND SRT_EXTRA_CFLAGS "-DENABLE_GETNAMEINFO=1")
endif()
if (ENABLE_THREAD_CHECK)
add_definitions(
-DSRT_ENABLE_THREADCHECK=1
-DFUGU_PLATFORM=1
-I${WITH_THREAD_CHECK_INCLUDEDIR}
)
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)
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
# From docs (https://cmake.org/cmake/help/latest/command/add_library.html#object-libraries):
#
# ... Some native build systems (such as Xcode) may not like targets that have only object files,
# so consider adding at least one real source file to any target that references $<TARGET_OBJECTS:objlib>.
set(OBJECT_LIB_SUPPORT "${PROJECT_SOURCE_DIR}/cmake_object_lib_support.c")
# NOTE: The "virtual library" is a library specification that cmake
# doesn't support (the library of OBJECT type is something in kind of that,
# but not fully supported - for example it doesn't support transitive flags,
# so this can't be used desired way). It's a private-only dependency type,
# where the project isn't compiled into any library file at all - instead, all
# of its source files are incorporated directly to the source list of the
# project that depends on it. In cmake this must be handled manually.
# ---
# Target: srt. DEFINITION ONLY. Haicrypt flag settings follow.
# ---
if (ENABLE_SHARED AND MICROSOFT)
#add resource files to shared library, to set DLL metadata on Windows DLLs
set (EXTRA_WIN32_SHARED 1)
message(STATUS "WIN32: extra resource file will be added")
endif()
MafReadDir(srtcore filelist.maf
SOURCES SOURCES_srt
PUBLIC_HEADERS HEADERS_srt
PROTECTED_HEADERS HEADERS_srt
PRIVATE_HEADERS HEADERS_srt_private
)
# Auto generated version file and add it to the HEADERS_srt list.
if(DEFINED ENV{APPVEYOR_BUILD_NUMBER})
set(SRT_VERSION_BUILD ON)
set(APPVEYOR_BUILD_NUMBER_STRING $ENV{APPVEYOR_BUILD_NUMBER})
message(STATUS "AppVeyor build environment detected: Adding build number to version header")
endif()
configure_file("srtcore/version.h.in" "version.h" @ONLY)
list(INSERT HEADERS_srt 0 "${CMAKE_CURRENT_BINARY_DIR}/version.h")
include_directories("${CMAKE_CURRENT_BINARY_DIR}")
add_library(srt_virtual OBJECT ${SOURCES_srt} ${SOURCES_srt_extra} ${HEADERS_srt} ${SOURCES_haicrypt} ${SOURCES_common})
if (ENABLE_SHARED)
# Set this to sources as well, as it won't be automatically handled
set_target_properties(srt_virtual PROPERTIES POSITION_INDEPENDENT_CODE 1)
endif()
macro(srt_set_stdcxx targetname spec)
set (stdcxxspec ${spec})
if (NOT "${stdcxxspec}" STREQUAL "")
if (FORCE_CXX_STANDARD_GNUONLY)
target_compile_options(${targetname} PRIVATE -std=c++${stdcxxspec})
#message(STATUS "C++ STD: ${targetname}: forced C++${stdcxxspec} standard - GNU option: -std=c++${stdcxxspec}")
else()
set_target_properties(${targetname} PROPERTIES CXX_STANDARD ${stdcxxspec})
#message(STATUS "C++ STD: ${targetname}: forced C++${stdcxxspec} standard - portable way")
endif()
else()
message(STATUS "APP: ${targetname}: using default C++ standard")
endif()
endmacro()
srt_set_stdcxx(srt_virtual "${USE_CXX_STD_LIB}")
set (VIRTUAL_srt $<TARGET_OBJECTS:srt_virtual>)
if (srt_libspec_shared)
add_library(${TARGET_srt}_shared SHARED ${OBJECT_LIB_SUPPORT} ${VIRTUAL_srt})
# shared libraries need PIC
set (CMAKE_POSITION_INDEPENDENT_CODE ON)
set_property(TARGET ${TARGET_srt}_shared PROPERTY OUTPUT_NAME ${TARGET_srt})
set_target_properties (${TARGET_srt}_shared PROPERTIES VERSION ${SRT_VERSION} SOVERSION ${SRT_VERSION_MAJOR})
list (APPEND INSTALL_TARGETS ${TARGET_srt}_shared)
if (ENABLE_ENCRYPTION)
target_link_libraries(${TARGET_srt}_shared PRIVATE ${SSL_LIBRARIES})
endif()
if (MICROSOFT)
target_link_libraries(${TARGET_srt}_shared PRIVATE ws2_32.lib)
if (OPENSSL_USE_STATIC_LIBS)
target_link_libraries(${TARGET_srt}_shared PRIVATE crypt32.lib)
else()
set_target_properties(${TARGET_srt}_shared PROPERTIES LINK_FLAGS "/DELAYLOAD:libeay32.dll")
endif()
elseif (MINGW)
target_link_libraries(${TARGET_srt}_shared PRIVATE wsock32.lib ws2_32.lib)
elseif (APPLE)
set_property(TARGET ${TARGET_srt}_shared PROPERTY MACOSX_RPATH ON)
endif()
if (USE_GNUSTL)
target_link_libraries(${TARGET_srt}_shared PRIVATE ${GNUSTL_LIBRARIES} ${GNUSTL_LDFLAGS})
endif()
endif()
if (srt_libspec_static)
add_library(${TARGET_srt}_static STATIC ${OBJECT_LIB_SUPPORT} ${VIRTUAL_srt})
# For Windows, leave the name to be "srt_static.lib".
# Windows generates two different library files:
# - a usual static library for static linkage
# - a shared library exposer, which allows pre-resolution and later dynamic
# linkage when running the executable
# Both having unfortunately the same names created by MSVC compiler.
# It's not the case of Cygwin/MINGW - they are named there libsrt.a and libsrt.dll.a
if (MICROSOFT)
# Keep _static suffix. By unknown reason, the name must still be set explicitly.
set_property(TARGET ${TARGET_srt}_static PROPERTY OUTPUT_NAME ${TARGET_srt}_static)
else()
set_property(TARGET ${TARGET_srt}_static PROPERTY OUTPUT_NAME ${TARGET_srt})
endif()
list (APPEND INSTALL_TARGETS ${TARGET_srt}_static)
if (ENABLE_ENCRYPTION)
target_link_libraries(${TARGET_srt}_static PRIVATE ${SSL_LIBRARIES})
endif()
if (MICROSOFT)
target_link_libraries(${TARGET_srt}_static PRIVATE ws2_32.lib)
if (OPENSSL_USE_STATIC_LIBS)
target_link_libraries(${TARGET_srt}_static PRIVATE crypt32.lib)
endif()
elseif (MINGW)
target_link_libraries(${TARGET_srt}_static PRIVATE wsock32 ws2_32)
endif()
if (USE_GNUSTL)
target_link_libraries(${TARGET_srt}_static PRIVATE ${GNUSTL_LIBRARIES} ${GNUSTL_LDFLAGS})
endif()
endif()
target_include_directories(srt_virtual PRIVATE ${SSL_INCLUDE_DIRS})
if (MICROSOFT)
if (OPENSSL_USE_STATIC_LIBS)
set (SRT_LIBS_PRIVATE ${SRT_LIBS_PRIVATE} ws2_32.lib crypt32.lib)
else()
set (SRT_LIBS_PRIVATE ${SRT_LIBS_PRIVATE} ws2_32.lib)
endif()
elseif (MINGW)
set (SRT_LIBS_PRIVATE ${SRT_LIBS_PRIVATE} -lwsock32 -lws2_32)
endif()
# Applying this to public includes is not transitive enough.
# On Windows, apps require this as well, so it's safer to
# spread this to all targets.
if (PTHREAD_INCLUDE_DIR)
include_directories(${PTHREAD_INCLUDE_DIR})
endif()
# Link libraries must be applied directly to the derivatives
# as virtual libraries (OBJECT-type) cannot have linkage declarations
# transitive or not.
foreach(tar ${srtpack_libspec_common})
message(STATUS "ADDING TRANSITIVE LINK DEP to:${tar} : ${PTHREAD_LIBRARY} ${dep}")
target_link_libraries (${tar} PUBLIC ${PTHREAD_LIBRARY} ${dep})
endforeach()
set (SRT_LIBS_PRIVATE ${SRT_LIBS_PRIVATE} ${PTHREAD_LIBRARY})
target_compile_definitions(srt_virtual PRIVATE -DSRT_EXPORTS )
if (ENABLE_SHARED)
target_compile_definitions(srt_virtual PUBLIC -DSRT_DYNAMIC)
endif()
if (srt_libspec_shared)
if (MICROSOFT)
target_link_libraries(${TARGET_srt}_shared PUBLIC Ws2_32.lib)
if (OPENSSL_USE_STATIC_LIBS)
target_link_libraries(${TARGET_srt}_shared PUBLIC crypt32.lib)
endif()
endif()
endif()
# Cygwin installs the *.dll libraries in bin directory and uses PATH.
set (INSTALL_SHARED_DIR ${CMAKE_INSTALL_LIBDIR})
if (CYGWIN)
set (INSTALL_SHARED_DIR ${CMAKE_INSTALL_BINDIR})
endif()
message(STATUS "INSTALL DIRS: bin=${CMAKE_INSTALL_BINDIR} lib=${CMAKE_INSTALL_LIBDIR} shlib=${INSTALL_SHARED_DIR} include=${CMAKE_INSTALL_INCLUDEDIR}")
install(TARGETS ${INSTALL_TARGETS}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${INSTALL_SHARED_DIR}
)
install(FILES ${HEADERS_srt} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/srt)
if (WIN32)
install(FILES ${HEADERS_srt_win32} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/srt/win)
endif()
# ---
# That's all for target definition
# ---
join_arguments(SRT_EXTRA_CFLAGS ${SRT_EXTRA_CFLAGS})
#message(STATUS "Target srt: LIBSPEC: ${srtpack_libspec_common} SOURCES: {${SOURCES_srt}} HEADERS: {${HEADERS_srt}}")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${SRT_DEBUG_OPT} ${SRT_EXTRA_CFLAGS} ${SRT_GCC_WARN}")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${SRT_DEBUG_OPT} ${SRT_EXTRA_CFLAGS} ${SRT_GCC_WARN}")
# PC file generation.
if (NOT DEFINED INSTALLDIR)
set (INSTALLDIR ${CMAKE_INSTALL_PREFIX})
get_filename_component(INSTALLDIR ${INSTALLDIR} ABSOLUTE)
endif()
# Required if linking a C application.
# This may cause trouble when you want to compile your app with static libstdc++;
# if your build requires it, you'd probably remove -lstdc++ from the list
# obtained by `pkg-config --libs`.
if(ENABLE_CXX_DEPS)
foreach(LIB ${CMAKE_CXX_IMPLICIT_LINK_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()
endif()
join_arguments(SRT_LIBS_PRIVATE ${SRT_LIBS_PRIVATE})
# haisrt.pc left temporarily for backward compatibility. To be removed in future!
configure_file(scripts/srt.pc.in haisrt.pc @ONLY)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/haisrt.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
configure_file(scripts/srt.pc.in srt.pc @ONLY)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/srt.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
# Applications
# If static is available, link apps against static one.
# Otherwise link against shared one.
if (srt_libspec_static)
set (srt_link_library ${TARGET_srt}_static)
if (ENABLE_RELATIVE_LIBPATH)
message(STATUS "ENABLE_RELATIVE_LIBPATH=ON will be ignored due to static linking.")
endif()
elseif(srt_libspec_shared)
set (srt_link_library ${TARGET_srt}_shared)
else()
message(FATAL_ERROR "Either ENABLE_STATIC or ENABLE_SHARED has to be ON!")
endif()
macro(srt_add_program name)
add_executable(${name} ${ARGN})
target_include_directories(${name} PRIVATE apps)
target_include_directories(${name} PRIVATE common)
install(TARGETS ${name} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
endmacro()
macro(srt_make_application name)
srt_set_stdcxx(${name} "${USE_CXX_STD_APP}")
# This is recommended by cmake, but it doesn't work anyway.