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#
# Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
# Copyright (c) 2021 DMitry Arkhipov (grisumbras@gmail.com)
# Copyright (c) 2022 Alan de Freitas (alandefreitas@gmail.com)
#
# Distributed under the Boost Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#
# Official repository: https://github.com/boostorg/openmethod
#
#-------------------------------------------------
#
# Project
#
#-------------------------------------------------
cmake_minimum_required(VERSION 3.8...3.20)
set(BOOST_OPENMETHOD_VERSION 1)
if (BOOST_SUPERPROJECT_VERSION)
set(BOOST_OPENMETHOD_VERSION ${BOOST_SUPERPROJECT_VERSION})
endif ()
project(boost_openmethod VERSION "${BOOST_OPENMETHOD_VERSION}" LANGUAGES CXX)
set(BOOST_OPENMETHOD_IS_ROOT OFF)
if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
set(BOOST_OPENMETHOD_IS_ROOT ON)
endif ()
set(__ignore__ ${CMAKE_C_COMPILER})
#-------------------------------------------------
#
# Options
#
#-------------------------------------------------
option(BOOST_OPENMETHOD_BUILD_TESTS "Build boost::openmethod tests even if BUILD_TESTING is OFF" OFF)
option(BOOST_OPENMETHOD_BUILD_EXAMPLES "Build boost::openmethod examples" ${BOOST_OPENMETHOD_IS_ROOT})
option(BOOST_OPENMETHOD_MRDOCS_BUILD "Build the target for MrDocs: see mrdocs.yml" OFF)
option(BOOST_OPENMETHOD_WARNINGS_AS_ERRORS "Treat warnings as errors" OFF)
# Check if environment variable BOOST_SRC_DIR is set
if (NOT DEFINED BOOST_SRC_DIR AND DEFINED ENV{BOOST_SRC_DIR})
set(DEFAULT_BOOST_SRC_DIR "$ENV{BOOST_SRC_DIR}")
else ()
set(DEFAULT_BOOST_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../..")
endif ()
set(BOOST_SRC_DIR ${DEFAULT_BOOST_SRC_DIR} CACHE STRING "Boost source dir to use when running CMake from this directory")
#-------------------------------------------------
#
# Boost modules
#
#-------------------------------------------------
# The boost super-project requires one explicit dependency per-line.
set(
BOOST_OPENMETHOD_DEPENDENCIES
Boost::assert
Boost::config
Boost::core
Boost::dynamic_bitset
Boost::mp11
Boost::preprocessor
)
foreach (BOOST_OPENMETHOD_DEPENDENCY ${BOOST_OPENMETHOD_DEPENDENCIES})
if (BOOST_OPENMETHOD_DEPENDENCY MATCHES "^[ ]*Boost::([A-Za-z0-9_]+)[ ]*$")
list(APPEND BOOST_OPENMETHOD_INCLUDE_LIBRARIES ${CMAKE_MATCH_1})
endif ()
endforeach ()
# Conditional dependencies
if (NOT BOOST_OPENMETHOD_MRDOCS_BUILD)
if (BUILD_TESTING OR BOOST_OPENMETHOD_BUILD_TESTS)
set(BOOST_OPENMETHOD_UNIT_TEST_LIBRARIES test)
endif()
if (BOOST_OPENMETHOD_BUILD_EXAMPLES)
set(BOOST_OPENMETHOD_EXAMPLE_LIBRARIES dll)
endif()
endif()
# Complete dependency list
set(BOOST_INCLUDE_LIBRARIES ${BOOST_OPENMETHOD_INCLUDE_LIBRARIES} ${BOOST_OPENMETHOD_UNIT_TEST_LIBRARIES} ${BOOST_OPENMETHOD_EXAMPLE_LIBRARIES})
set(BOOST_EXCLUDE_LIBRARIES openmethod)
#-------------------------------------------------
#
# Add Boost Subdirectory
#
#-------------------------------------------------
if (BOOST_OPENMETHOD_IS_ROOT)
set(CMAKE_FOLDER Dependencies)
# Find absolute BOOST_SRC_DIR
if (NOT IS_ABSOLUTE ${BOOST_SRC_DIR})
set(BOOST_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/${BOOST_SRC_DIR}")
endif ()
# Validate BOOST_SRC_DIR
set(BOOST_SRC_DIR_IS_VALID ON)
foreach (F "CMakeLists.txt" "Jamroot" "boost-build.jam" "bootstrap.sh" "libs")
if (NOT EXISTS "${BOOST_SRC_DIR}/${F}")
message(STATUS "${BOOST_SRC_DIR}/${F} does not exist. Fallback to find_package.")
set(BOOST_SRC_DIR_IS_VALID OFF)
break()
endif ()
endforeach ()
# Create Boost interface targets
if (BOOST_SRC_DIR_IS_VALID)
# From BOOST_SRC_DIR
if (BUILD_SHARED_LIBS)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
endif()
set(BOOST_EXCLUDE_LIBRARIES ${PROJECT_NAME})
set(PREV_BUILD_TESTING ${BUILD_TESTING})
set(BUILD_TESTING OFF CACHE BOOL "Build the tests." FORCE)
add_subdirectory(${BOOST_SRC_DIR} Dependencies/boost EXCLUDE_FROM_ALL)
set(BUILD_TESTING ${PREV_BUILD_TESTING} CACHE BOOL "Build the tests." FORCE)
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${BOOST_SRC_DIR}/tools/cmake/include")
else ()
# From Boost Package
find_package(Boost REQUIRED COMPONENTS container)
foreach (BOOST_INCLUDE_LIBRARY ${BOOST_INCLUDE_LIBRARIES})
if (NOT TARGET Boost::${BOOST_INCLUDE_LIBRARY})
add_library(Boost::${BOOST_INCLUDE_LIBRARY} ALIAS Boost::headers)
endif ()
endforeach ()
endif ()
unset(CMAKE_FOLDER)
endif ()
#-------------------------------------------------
#
# Library
#
#-------------------------------------------------
file(GLOB_RECURSE BOOST_OPENMETHOD_HEADERS CONFIGURE_DEPENDS include/boost/*.hpp)
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR}/include/boost PREFIX "" FILES ${BOOST_OPENMETHOD_HEADERS})
function(boost_openmethod_setup_properties target)
target_link_libraries(${target} INTERFACE ${BOOST_OPENMETHOD_DEPENDENCIES})
endfunction()
add_library(boost_openmethod INTERFACE)
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.19)
target_sources(boost_openmethod PRIVATE ${BOOST_OPENMETHOD_HEADERS})
endif()
add_library(Boost::openmethod ALIAS boost_openmethod)
target_include_directories(boost_openmethod INTERFACE "${PROJECT_SOURCE_DIR}/include")
boost_openmethod_setup_properties(boost_openmethod)
target_compile_features(boost_openmethod INTERFACE cxx_std_17)
if (BOOST_OPENMETHOD_MRDOCS_BUILD)
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/mrdocs.cpp" "#include <boost/openmethod.hpp>\n")
foreach (HEADER ${BOOST_OPENMETHOD_HEADERS})
string(REPLACE "${PROJECT_SOURCE_DIR}/include/" "" HEADER "${HEADER}")
file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/mrdocs.cpp" "#include <${HEADER}>\n")
endforeach()
add_library(boost_openmethod_mrdocs "${CMAKE_CURRENT_BINARY_DIR}/mrdocs.cpp")
target_include_directories(boost_openmethod_mrdocs PUBLIC "${PROJECT_SOURCE_DIR}/include")
boost_openmethod_setup_properties(boost_openmethod_mrdocs)
target_link_libraries(boost_openmethod_mrdocs PUBLIC Boost::openmethod)
target_compile_definitions(boost_openmethod_mrdocs PUBLIC BOOST_OPENMETHOD_MRDOCS)
return()
endif()
#-------------------------------------------------
#
# Tests
#
#-------------------------------------------------
if (BUILD_TESTING OR BOOST_OPENMETHOD_BUILD_TESTS)
enable_testing()
add_subdirectory(test)
if (BOOST_OPENMETHOD_IS_ROOT)
add_custom_target(all_with_tests ALL DEPENDS tests)
endif()
endif ()
#-------------------------------------------------
#
# Examples
#
#-------------------------------------------------
if (BOOST_OPENMETHOD_BUILD_EXAMPLES)
enable_testing()
add_subdirectory(doc/modules/ROOT/examples)
endif ()
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