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Handle BOOST_TYPE_INDEX_USE_STD_MODULE right #48

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Handle BOOST_TYPE_INDEX_USE_STD_MODULE right #48

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33 changes: 18 additions & 15 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -4,24 +4,27 @@
# Distributed under the Boost Software License, Version 1.0.
# https://www.boost.org/LICENSE_1_0.txt

cmake_minimum_required(VERSION 3.5...4.20)
cmake_minimum_required(VERSION 3.28...4.4)

project(boost_type_index VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)

if (BOOST_USE_MODULES)
if(BOOST_USE_MODULES)
add_library(boost_type_index)
target_sources(boost_type_index
PUBLIC
FILE_SET CXX_MODULES
BASE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}"
FILES "${CMAKE_CURRENT_SOURCE_DIR}/modules/boost_type_index.cppm"
target_sources(boost_type_index PUBLIC
FILE_SET modules_public
TYPE CXX_MODULES
FILES modules/boost_type_index.cppm
)

target_compile_features(boost_type_index PUBLIC cxx_std_20)
target_compile_definitions(boost_type_index PUBLIC BOOST_USE_MODULES)
if ((CMAKE_CXX_STANDARD IN_LIST CMAKE_CXX_COMPILER_IMPORT_STD) AND CMAKE_CXX_MODULE_STD)
target_compile_features(boost_type_index PRIVATE cxx_std_23)
target_compile_definitions(boost_type_index PRIVATE BOOST_TYPE_INDEX_USE_STD_MODULE)
set(__boost_cxx_standard ${CMAKE_CXX_STANDARD})
if(NOT __boost_cxx_standard)
set(__boost_cxx_standard 23)
endif()
if(CMAKE_CXX_COMPILER_IMPORT_STD AND ${__boost_cxx_standard} IN_LIST CMAKE_CXX_COMPILER_IMPORT_STD)
target_compile_definitions(boost_type_index PUBLIC BOOST_TYPE_INDEX_USE_STD_MODULE)
target_compile_features(boost_type_index PUBLIC cxx_std_${__boost_cxx_standard})
message(STATUS "Using `import std;`")
else()
message(STATUS "`import std;` is not available")
Expand All @@ -36,12 +39,12 @@ target_include_directories(boost_type_index ${__scope} include)
add_library(Boost::type_index ALIAS boost_type_index)

target_link_libraries(boost_type_index
${__scope}
Boost::config
Boost::container_hash
Boost::throw_exception
${__scope}
Boost::config
Boost::container_hash
Boost::throw_exception
)

if(BUILD_TESTING)
add_subdirectory(test)
add_subdirectory(test)
endif()