# We require a recent version of cmake and automatically install a compatible

# version when using the cmake lists, if one is not already present.

cmake_minimum_required(VERSION 3.12.0)

# Libraries linked via full path no longer produce linker search paths.

cmake_policy(SET CMP0003 NEW)

# Preprocessor definition values are now escaped automatically.

cmake_policy(SET CMP0005 NEW)

# for cmake 3.0

cmake_policy(SET CMP0045 OLD)

cmake_policy(SET CMP0046 OLD)

cmake_policy(SET CMP0042 NEW)

# Generate a compilation database for use with automated tools like IDE/editor

# plugins. See http://clang.llvm.org/docs/JSONCompilationDatabase.html

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

# ##############################################################################

# Set the base configuration for a number of things.

project(Turi)

enable_language(C)

enable_language(CXX)

set(CMAKE_CXX_STANDARD 11)

set(CMAKE_CXX_STANDARD_REQUIRED 1)

set(CMAKE_POSITION_INDEPENDENT_CODE ON)

# ##############################################################################

# Set options

option(TC_BUILD_METRICS "Produce clang build metrics" OFF)

# **************************************************************************/

# * */

# * Global Link, Include and Define Flags */

# * */

# **************************************************************************/

set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_SOURCE_DIR}/cmake")

# Configure the compiler

include(SetupCompiler)

setupcompiler()

if(WIN32)

add_definitions(-DWINVER=0x0600)

add_definitions(-D_WIN32_WINNT=0x0600)

endif()

if(${TC_BUILD_IOS})

add_definitions(-DTC_BUILD_IOS)

if(${TC_BUILD_REMOTEFS})

message(ERROR "RemoteFS must be disabled for building iOS.")

endif()

endif()

if(NOT ${TC_BUILD_REMOTEFS})

add_definitions(-DTC_DISABLE_REMOTEFS)

endif()

# Determine where additional Turi specific cmake modules are defined

set(DEPS_CMAKE ${CMAKE_SOURCE_DIR}/deps/cmake)

set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${DEPS_CMAKE}")

set(CMAKE_PREFIX_PATH

"${CMAKE_SOURCE_DIR}/deps/local:${CMAKE_SOURCE_DIR}/deps/env/"

CACHE STRING "CMAKE PREFIX PATH" FORCE)

set(CMAKE_LIBRARY_PATH

"${CMAKE_SOURCE_DIR}/deps/local/lib:${CMAKE_SOURCE_DIR}/deps/env/lib:${CMAKE_SOURCE_DIR}/deps/env/local/lib:${CMAKE_LIBRARY_PATH}"

CACHE STRING "CMAKE Library Path" FORCE)

set(ENV{PATH}

"${CMAKE_SOURCE_DIR}/deps/local/bin:${CMAKE_SOURCE_DIR}/deps/env/bin:$ENV{PATH}"

)

# Test for python support. Needs the path environment variable to be set to

# find cython reliably

if(TC_BUILD_PYTHON)

message("Building python libraries.")

if(NOT EXISTS ${CMAKE_SOURCE_DIR}/deps/env/bin/python)

message(

FATAL_ERROR "Internal error: Python toolchain expected; not present.")

endif()

include_directories(${CMAKE_SOURCE_DIR}/deps/env/include)

include(UseCython)

add_definitions(-DTC_HAS_PYTHON=1)

add_definitions(-DTC_BUILD_VISUALIZATION_CLIENT=1)

else()

message("Skipping python libraries.")

endif()

# Add global defines

add_definitions(-DTC_BUILD_PATH_BASE="${CMAKE_SOURCE_DIR}")

add_definitions(-DCURL_STATICLIB)

add_definitions(-DIN_TURI_SOURCE_TREE)

add_definitions(-DFUSION_MAX_VECTOR_SIZE=20)

add_definitions(-DBOOST_SPIRIT_THREAD_SAFE)

add_definitions(-DBOOST_THREAD_ONCE_ATOMIC)

# These determine the maximum number of arguments for extension functions

add_definitions(-DBOOST_FUSION_INVOKE_MAX_ARITY=12)

add_definitions(-DBOOST_FUSION_INVOKE_PROCEDURE_MAX_ARITY=12)

add_definitions(-DBOOST_FUSION_INVOKE_FUNCTION_OBJECT_MAX_ARITY=12)

# Workaround for https://svn.boost.org/trac10/ticket/10443 in Boost 1.68.0

add_definitions(-DBOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK)

# Legal define for Eigen.

add_definitions(-DEIGEN_MPL2_ONLY)

# Defines to avoid symbol collisions

add_definitions(-Dgoogle=_tc_google)

# **************************************************************************/

# * */

# * Adapt Compiler and Linker Flags to the system */

# * */

# **************************************************************************/

include(CompilerFlags)

# Set some universal flags that we don't need to test for

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -fPIC")

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Werror")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror")

# Go through and add in all the relevant build flags as appropriate

check_and_set_compiler_flag(-ftemplate-depth=900 CXX)

check_and_set_compiler_flag(-Wno-c++11-narrowing CXX)

check_and_set_compiler_flag(-Wno-stdlibcxx-not-found CXX RESTRICT_CLANG)

check_and_set_compiler_flag(-Wno-unused-command-line-argument)

check_and_set_compiler_flag(-Wno-deprecated-declarations)

check_and_set_compiler_flag(-Wno-implicit-function-declaration)

check_and_set_compiler_flag(-Wno-deprecated-register)

check_and_set_compiler_flag(-Qunused-arguments)

check_and_set_compiler_flag(-Wno-mismatched-tags)

check_and_set_compiler_flag(-Wno-enum-compare)

check_and_set_compiler_flag(-Wno-conversion-null)

check_and_set_compiler_flag(-Wno-constant-logical-operand)

check_and_set_compiler_flag(-Wno-parentheses-equality)

check_and_set_compiler_flag(-Wno-unknown-pragmas)

check_and_set_compiler_flag(-Wno-unused-local-typedefs)

check_and_set_compiler_flag(-Wno-attributes)

check_and_set_compiler_flag(-Wno-tautological-compare)

check_and_set_compiler_flag(-fpeel-loops RELEASE)

check_and_set_compiler_flag(-funswitch-loops RELEASE)

check_and_set_compiler_flag(-ftracer RELEASE)

if(TC_BUILD_METRICS)

# TC_BUILD_METRICS enables -ftime-trace in supported compilers, which will

# produce a timings json file for each compiled object.

check_and_set_compiler_flag(-ftime-trace)

endif()

if(APPLE)

# This triggers a bug in clang; the 10.13 symbol ___chkstk_darwin is missing

# in 10.13, and the code generated doesn't run on that, even with the 10.12

# target. The solution to this is to disable the stack checking globally,

# which seems to be enabled by default in clang 11 and later for objective C++

# code.

check_and_set_compiler_flag(-fno-stack-check)

check_and_set_compiler_flag(-fno-stack-protector)

endif()

# Turn on ARC globally.

check_and_set_compiler_flag(-fobjc-arc)

# This flag needs to be set after all other warning flags, or it may give false

# positives.

check_and_set_compiler_flag(-Wno-unknown-warning-option)

# Set the different optimization flags

if(${DEBUG_OPT_FOR_SIZE})

set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Os -g")

set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Os -g")

else()

set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -fno-inline -g")

set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0 -fno-inline -g")

endif()

if(${RELEASE_OPT_FOR_SIZE})

set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -Os -DNDEBUG")

set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -Os -DNDEBUG")

else()

set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3 -DNDEBUG")

set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -DNDEBUG")

endif()

# Set up the 128 bit integer support; defines INT128_FLAGS

include(FindInt128)

find_int128_types()

# Set up defines around a few compiler and language oddities that we have to

# understand.

include(CompilerOddities)

set_compiler_specific_flags()

# Set up threads.

set(THREADS_PREFER_PTHREAD_FLAG TRUE)

set(CMAKE_THREAD_PREFER_PTHREAD TRUE)

find_package(Threads REQUIRED)

if(CMAKE_USE_PTHREADS_INIT)

add_definitions(-DHAVE_PTHREAD)

endif()

# Get framework dependencies.

if(APPLE)

find_library(ACCELERATE NAMES Accelerate)

find_library(CORE_GRAPHICS CoreGraphics)

find_library(JAVASCRIPT_CORE JavaScriptCore)

find_library(FOUNDATION Foundation)

find_library(CORE_IMAGE NAMES CoreImage)

find_library(CORE_ML CoreML)

find_library(CORE_VIDEO CoreVideo)

find_library(METAL NAMES Metal)

find_library(METAL_PERFORMANCE_SHADERS NAMES MetalPerformanceShaders)

set(_TC_APPLE_DEPENDENCIES

${ACCELERATE}

${CORE_GRAPHICS}

${JAVASCRIPT_CORE}

${FOUNDATION}

${CORE_IMAGE}

${CORE_ML}

${CORE_VIDEO}

${METAL}

${METAL_PERFORMANCE_SHADERS})

if(NOT ${TC_BUILD_IOS})

find_library(APPKIT AppKit)

set(_TC_APPLE_DEPENDENCIES ${_TC_APPLE_DEPENDENCIES} ${APPKIT})

endif()

endif()

if(APPLE)

# if mac, but not using clang, we should use the clang linker anyway since the

# gcc linker seems to cause problems. Especially with -march=native

#

# see: http://stackoverflow.com/questions/9840207/how-to-use-avx-pclmulqdq-on-

# mac-os-x-lion

if(NOT CLANG)

set(ALTERNATE_LINKER "-Wa,-q")

endif()

endif()

# Install time rpath gets highest priority, we should always use rpath relative

# to the installation location first.

if(WIN32)

set(CMAKE_EXE_LINKER_FLAGS

"${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath,${CMAKE_SOURCE_DIR}/deps/local/bin")

set(CMAKE_EXE_LINKER_FLAGS

"${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath,/mingw64/bin")

set(CMAKE_MODULE_LINKER_FLAGS

"${CMAKE_MODULE_LINKER_FLAGS} -Wl,-rpath,/mingw64/bin")

elseif(APPLE)

# For whatever reason just adding -rpath=@loader_path has issues on 10.9 but

# not 10.10 Here are two possible alternatives that "may" fix the issue. If

# they fix it I am not sure which line was the one which actually worked

set(CMAKE_EXE_LINKER_FLAGS

"${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath,@loader_path/.")

set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath,.")

set(CMAKE_SHARED_LINKER_FLAGS

"${CMAKE_SHARED_LINKER_FLAGS} -Wl,-rpath,@loader_path -Wl,-rpath,@loader_path/.."

)

set(CMAKE_MODULE_LINKER_FLAGS

"${CMAKE_MODULE_LINKER_FLAGS} -Wl,-rpath,@loader_path -Wl,-rpath,@loader_path/.."

)

else()

# LINUX

set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath,\\$ORIGIN")

set(CMAKE_SHARED_LINKER_FLAGS

"${CMAKE_SHARED_LINKER_FLAGS} -Wl,-rpath,\\$ORIGIN -Wl,-rpath,\\$ORIGIN/.."

)

set(CMAKE_MODULE_LINKER_FLAGS

"${CMAKE_MODULE_LINKER_FLAGS} -Wl,-rpath,\\$ORIGIN -Wl,-rpath,\\$ORIGIN/.."

)

endif()

# Common install locations for deps linked libraries

set(CMAKE_EXE_LINKER_FLAGS

"${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath,${CMAKE_SOURCE_DIR}/deps/local/lib64")

set(CMAKE_SHARED_LINKER_FLAGS

"${CMAKE_SHARED_LINKER_FLAGS} -Wl,-rpath,${CMAKE_SOURCE_DIR}/deps/local/lib64"

)

set(CMAKE_MODULE_LINKER_FLAGS

"${CMAKE_MODULE_LINKER_FLAGS} -Wl,-rpath,${CMAKE_SOURCE_DIR}/deps/local/lib64"

)

set(CMAKE_EXE_LINKER_FLAGS

"${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath,${CMAKE_SOURCE_DIR}/deps/local/lib")

set(CMAKE_SHARED_LINKER_FLAGS

"${CMAKE_SHARED_LINKER_FLAGS} -Wl,-rpath,${CMAKE_SOURCE_DIR}/deps/local/lib"

)

set(CMAKE_MODULE_LINKER_FLAGS

"${CMAKE_MODULE_LINKER_FLAGS} -Wl,-rpath,${CMAKE_SOURCE_DIR}/deps/local/lib"

)

# **************************************************************************/

# * */

# * Report Final Flags */

# * */

# **************************************************************************/

message("CMAKE_BUILD_TYPE= ${CMAKE_BUILD_TYPE}.")

if(${CMAKE_BUILD_TYPE} MATCHES "Release")

message(

STATUS

"Release build with C++ flags: ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_RELEASE}"

)

message(

STATUS

"Release build with C flags: ${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_RELEASE}")

elseif(${CMAKE_BUILD_TYPE} MATCHES "Debug")

message(

STATUS

"Debug build with C++ flags: ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_DEBUG}")

message(

STATUS "Debug build with C flags: ${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_DEBUG}")

else()

message(FATAL_ERROR "Unknown build type: " ${CMAKE_BUILD_TYPE}

"!. Rerun ./configure")

endif()

# ##############################################################################

# ##############################################################################

# ##############################################################################

# ##############################################################################

# ##############################################################################

# ##############################################################################

# We are done with the system configuration. Now everything else below here is

# about getting dependencies and macros and various build behaviors

# ##############################################################################

# ##############################################################################

# ##############################################################################

# ##############################################################################

# ##############################################################################

# ##############################################################################

# some useful utilities

include(copy_file)

include(CMakeParseArguments)

include(eval)

include(MakeLibrary)

include(MakeExecutable)

include(MakeTest)

include(BuildUtilities)

include_directories(SYSTEM ${CMAKE_SOURCE_DIR}/deps/local/include)

include_directories(SYSTEM ${CMAKE_SOURCE_DIR}/src/external/boost/boost_1_68_0/)

include_directories(SYSTEM

${CMAKE_SOURCE_DIR}/src/external/libpng/libpng-1.6.37/)

include_directories(SYSTEM ${CMAKE_SOURCE_DIR}/src/external/libjpeg/jpeg-8d/)

include_directories(SYSTEM ${CMAKE_SOURCE_DIR}/src/external/bzip2/)

include_directories(SYSTEM ${CMAKE_SOURCE_DIR}/src/external/zlib/zlib-1.2.11/)

include_directories(SYSTEM ${CMAKE_SOURCE_DIR}/src/external/coremltools_wrap/)

link_directories(${CMAKE_SOURCE_DIR}/deps/local/lib)

link_directories(${CMAKE_SOURCE_DIR}/deps/local/lib64)

include_directories(src)

include_directories(src/core/system/platform)

include_directories(SYSTEM src/external)

if(${TC_BUILD_REMOTEFS})

include_directories(SYSTEM src/external/aws-sdk-cpp/aws-cpp-sdk-core/include)

include_directories(SYSTEM src/external/aws-sdk-cpp/aws-cpp-sdk-s3/include)

endif()

include_directories(SYSTEM src/external/google)

include_directories(SYSTEM src/external/nanomsg/nanomsg-1.0.0/src)

# Include all the external dependencies.

include(ExternalProject)

add_custom_target(external_dependencies)

file(GLOB packages "${DEPS_CMAKE}/ExternalProject*.cmake")

foreach(package ${packages})

get_filename_component(packagename "${package}" NAME_WE)

# package is of the form ExternalProjectXXX"

include(${package})

string(SUBSTRING "${packagename}" 15 -1 depname)

string(TOLOWER ${depname} depname)

set(package_${depname}

requires_${depname}

CACHE STRING "Package map")

add_dependencies(external_dependencies ex_${depname})

endforeach()

set(_TC_EXTERNAL_DEPENDENCIES openssl libxml2 curl Threads::Threads

${CMAKE_DL_LIBS})

# Collate all the object targets shared among static and shared library targets

# These are used by C API, unity_shared, etc.

if(NOT _TC_DEFAULT_SERVER_INITIALIZER)

set(_TC_DEFAULT_SERVER_INITIALIZER

"${CMAKE_SOURCE_DIR}/src/capi/default_server_initializer.cpp")

endif()

if(NOT TC_DISABLE_OBJECT_BUILDS)

set(_TC_COMMON_OBJECTS

# External dependencies (built from src/external)

"$<TARGET_OBJECTS:libjpeg>"

"$<TARGET_OBJECTS:libjson>"

"$<TARGET_OBJECTS:libpng>"

"$<TARGET_OBJECTS:lz4>"

"$<TARGET_OBJECTS:protobuf>"

"$<TARGET_OBJECTS:uuid>"

"$<TARGET_OBJECTS:xgboost>"

"$<TARGET_OBJECTS:coremltools_mlmodel>"

# Then our own source code

"$<TARGET_OBJECTS:annotation>"

"$<TARGET_OBJECTS:cancel_serverside_ops>"

"$<TARGET_OBJECTS:crash_handler>"

"$<TARGET_OBJECTS:cppipc>"

"$<TARGET_OBJECTS:flexible_type>"

"$<TARGET_OBJECTS:globals>"

"$<TARGET_OBJECTS:fileio>"

"$<TARGET_OBJECTS:image_io>"

"$<TARGET_OBJECTS:image_type>"

"$<TARGET_OBJECTS:logger>"

"$<TARGET_OBJECTS:minipsutil>"

"$<TARGET_OBJECTS:ml_data>"

"$<TARGET_OBJECTS:nanosockets>"

"$<TARGET_OBJECTS:network>"

"$<TARGET_OBJECTS:optimization>"

"$<TARGET_OBJECTS:parallel>"

"$<TARGET_OBJECTS:process>"

"$<TARGET_OBJECTS:pylambda>"

"$<TARGET_OBJECTS:random>"

"$<TARGET_OBJECTS:serialization>"

"$<TARGET_OBJECTS:sframe>"

"$<TARGET_OBJECTS:sframe_query_engine>"

"$<TARGET_OBJECTS:sgraph>"

"$<TARGET_OBJECTS:shmipc>"

"$<TARGET_OBJECTS:startup_teardown>"

"$<TARGET_OBJECTS:supervised_learning>"

"$<TARGET_OBJECTS:table_printer>"

"$<TARGET_OBJECTS:timer>"

"$<TARGET_OBJECTS:unity_sframe>"

"$<TARGET_OBJECTS:gl_sframe>"

"$<TARGET_OBJECTS:unity_sketches>"

"$<TARGET_OBJECTS:unity>"

"$<TARGET_OBJECTS:unity_activity_classification>"

"$<TARGET_OBJECTS:unity_core>"

"$<TARGET_OBJECTS:unity_coreml_model_export>"

"$<TARGET_OBJECTS:unity_clustering>"

"$<TARGET_OBJECTS:unity_drawing_classifier>"

"$<TARGET_OBJECTS:unity_evaluation>"

"$<TARGET_OBJECTS:unity_factorization>"

"$<TARGET_OBJECTS:unity_feature_engineering>"

"$<TARGET_OBJECTS:unity_graph_analytics>"

"$<TARGET_OBJECTS:unity_image_export>"

"$<TARGET_OBJECTS:unity_ml_data_2>"

"$<TARGET_OBJECTS:unity_ml_model>"

"$<TARGET_OBJECTS:unity_nearest_neighbors>"

"$<TARGET_OBJECTS:unity_neural_net>"

"$<TARGET_OBJECTS:unity_object_detection>"

"$<TARGET_OBJECTS:unity_one_shot_object_detection>"

"$<TARGET_OBJECTS:unity_pattern_mining>"

"$<TARGET_OBJECTS:unity_prototype>"

"$<TARGET_OBJECTS:unity_recsys>"

"$<TARGET_OBJECTS:unity_sgd>"

"$<TARGET_OBJECTS:unity_sparse_similarity>"

"$<TARGET_OBJECTS:unity_style_transfer>"

"$<TARGET_OBJECTS:unity_text>"

"$<TARGET_OBJECTS:unity_util>"

"$<TARGET_OBJECTS:util>"

"$<TARGET_OBJECTS:visualization>")

# TODO we can remove the requirements from here when target_link_libraries

# works with OBJECT library targets (requires CMake 3.12) See

# https://gitlab.kitware.com/cmake/cmake/issues/14778

set(_TC_COMMON_REQUIREMENTS # External dependencies (from deps)

${_TC_EXTERNAL_DEPENDENCIES} nanomsg boost libbz2 z)

if(APPLE)

set(_TC_COMMON_REQUIREMENTS # External dependencies (from deps)

${_TC_COMMON_REQUIREMENTS} ${_TC_APPLE_DEPENDENCIES})

endif()

set(_TC_COMMON_OBJECTS ${_TC_COMMON_OBJECTS} "$<TARGET_OBJECTS:annotation>"

"$<TARGET_OBJECTS:visualization>")

if(APPLE)

set(_TC_COMMON_OBJECTS

${_TC_COMMON_OBJECTS} "$<TARGET_OBJECTS:image_deep_feature_extractor>"

"$<TARGET_OBJECTS:platform_config>")

set(_TC_COMMON_REQUIREMENTS ${_TC_COMMON_REQUIREMENTS} ${CORE_ML}

${CORE_VIDEO} ${FOUNDATION})

if(NOT ${TC_BUILD_IOS})

set(_TC_COMMON_OBJECTS ${_TC_COMMON_OBJECTS}

"$<TARGET_OBJECTS:vega_renderer>")

set(_TC_COMMON_REQUIREMENTS ${_TC_COMMON_REQUIREMENTS} ${APPKIT}

${CORE_GRAPHICS} ${JAVASCRIPT_CORE})

if(HAS_MPS)

set(_TC_COMMON_OBJECTS ${_TC_COMMON_OBJECTS} "$<TARGET_OBJECTS:tcmps>")

set(_TC_COMMON_REQUIREMENTS

${_TC_COMMON_REQUIREMENTS} ${ACCELERATE} ${CORE_IMAGE} ${METAL}

${METAL_PERFORMANCE_SHADERS})

endif()

endif()

endif()

if(TC_BUILD_REMOTEFS)

# object targets that should be included in all APPLE and non-APPLE

# platforms except for iOS

set(_TC_COMMON_OBJECTS ${_TC_COMMON_OBJECTS})

list(APPEND _TC_COMMON_REQUIREMENTS aws-cpp-sdk)

endif()

endif() # End disable object builds

if(EXISTS ${CMAKE_SOURCE_DIR}/extensions)

include_directories(SYSTEM extensions)

add_subdirectory(extensions)

endif()

# for build-time generated source code

include_directories(SYSTEM ${CMAKE_BINARY_DIR}/src)

if(EXISTS ${CMAKE_SOURCE_DIR}/subtree)

include_directories(SYSTEM subtree)

add_subdirectory(subtree)

endif()

add_subdirectory(src)

add_subdirectory(test)