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Guard boost::filesystem usage #743

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May 10, 2024
Merged

Guard boost::filesystem usage #743

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26 changes: 22 additions & 4 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -60,8 +60,13 @@ option(BOOST_GIL_ENABLE_EXT_RASTERIZATION "Enable Rasterization extension and te
option(BOOST_GIL_ENABLE_EXT_IMAGE_PROCESSING "Enable Image Processing extension (!) and tests" ON)
option(BOOST_GIL_USE_CONAN "Use Conan to install dependencies" OFF)
option(BOOST_GIL_USE_CLANG_TIDY "Set CMAKE_CXX_CLANG_TIDY property on targets to enable clang-tidy linting" OFF)
option(BOOST_GIL_USE_BOOST_FILESYSTEM "Use boost::filesystem, disabling requires CMAKE_CXX_STANDARD >= 17" ON)
set(CMAKE_CXX_STANDARD 14 CACHE STRING "C++ standard version to use (default is 14)")

if (NOT BOOST_GIL_USE_BOOST_FILESYSTEM AND CMAKE_CXX_STANDARD LESS 17)
message(FATAL_ERROR "Using std::filesystem requires CMAKE_CXX_STANDARD >= 17")
endif()

#-----------------------------------------------------------------------------
# Project
#-----------------------------------------------------------------------------
Expand Down Expand Up @@ -105,13 +110,20 @@ target_compile_options(gil_compile_options
$<$<OR:$<CXX_COMPILER_ID:GNU>,$<CXX_COMPILER_ID:Clang>>:-fstrict-aliasing>
$<$<AND:$<OR:$<CXX_COMPILER_ID:GNU>,$<CXX_COMPILER_ID:Clang>>,$<NOT:$<BOOL:${BOOST_GIL_BUILD_CI}>>>:-Wall -Wconversion -Wextra -Wfloat-equal -Wshadow -Wsign-promo -Wstrict-aliasing -Wunused-parameter -pedantic>)


if (BOOST_GIL_USE_BOOST_FILESYSTEM)
set(filesystem_definition "BOOST_GIL_USE_BOOST_FILESYSTEM")
else()
set(filesystem_definition "BOOST_GIL_IO_USE_STD_FILESYSTEM")
endif()
target_compile_definitions(gil_compile_options
INTERFACE
$<$<CXX_COMPILER_ID:MSVC>:_CRT_NONSTDC_NO_DEPRECATE>
$<$<CXX_COMPILER_ID:MSVC>:_SCL_SECURE_NO_DEPRECATE>
$<$<CXX_COMPILER_ID:MSVC>:_CRT_SECURE_NO_WARNINGS>
$<$<CXX_COMPILER_ID:MSVC>:NOMINMAX>
$<$<CXX_COMPILER_ID:MSVC>:BOOST_CONFIG_SUPPRESS_OUTDATED_MESSAGE>)
$<$<CXX_COMPILER_ID:MSVC>:BOOST_CONFIG_SUPPRESS_OUTDATED_MESSAGE>
${filesystem_definition})

#-----------------------------------------------------------------------------
# Dependency target
Expand Down Expand Up @@ -140,12 +152,18 @@ if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
set(Boost_USE_STATIC_RUNTIME OFF)
endif()

find_package(Boost 1.80.0 REQUIRED COMPONENTS filesystem)
set(Boost_required_components headers)
if (BOOST_GIL_USE_BOOST_FILESYSTEM)
list(APPEND Boost_required_components filesystem)
endif()
find_package(Boost 1.80.0 REQUIRED COMPONENTS ${Boost_required_components})
message(STATUS "Boost.GIL: Using Boost_INCLUDE_DIRS=${Boost_INCLUDE_DIRS}")
message(STATUS "Boost.GIL: Using Boost_LIBRARY_DIRS=${Boost_LIBRARY_DIRS}")

target_link_libraries(gil_dependencies INTERFACE Boost::filesystem)

target_link_libraries(gil_dependencies INTERFACE Boost::headers)
if (BOOST_GIL_USE_BOOST_FILESYSTEM)
target_link_libraries(gil_dependencies INTERFACE Boost::filesystem)
endif()
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
target_link_libraries(gil_dependencies INTERFACE Boost::disable_autolinking)
endif()
Expand Down
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