mirror of
https://github.com/Kitware/CMake.git
synced 2026-05-03 21:00:01 -05:00
Chuck Atkins
72e7c45e98
Since 3.19, CMake generates a deprecation warning when using a minimum version less than 2.8.12. This eliminates those warnings generated during tests, which are typically hidden from the user and developer but are being generated nonetheless.
77 lines
2.7 KiB
CMake
77 lines
2.7 KiB
CMake
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cmake_minimum_required(VERSION 2.8.12)
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project(SystemIncludeDirectories)
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add_library(systemlib systemlib.cpp)
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target_include_directories(systemlib PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/systemlib")
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add_library(upstream upstream.cpp)
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target_link_libraries(upstream LINK_PUBLIC systemlib)
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target_compile_options(upstream PRIVATE -Werror=unused-variable)
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target_include_directories(upstream SYSTEM PUBLIC
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$<TARGET_PROPERTY:systemlib,INTERFACE_INCLUDE_DIRECTORIES>
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)
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add_library(config_specific INTERFACE)
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if(CMAKE_GENERATOR STREQUAL "Xcode")
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# CMAKE_BUILD_TYPE does not work here for multi-config generators
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target_include_directories(config_specific SYSTEM INTERFACE
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"${CMAKE_CURRENT_SOURCE_DIR}/config_specific"
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)
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else()
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set(testConfig ${CMAKE_BUILD_TYPE})
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target_include_directories(config_specific SYSTEM INTERFACE
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"$<$<CONFIG:${testConfig}>:${CMAKE_CURRENT_SOURCE_DIR}/config_specific>"
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)
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endif()
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add_library(consumer consumer.cpp)
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target_link_libraries(consumer upstream config_specific)
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target_compile_options(consumer PRIVATE -Werror=unused-variable)
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add_library(iface IMPORTED INTERFACE)
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set_property(TARGET iface PROPERTY INTERFACE_INCLUDE_DIRECTORIES
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"$<$<COMPILE_LANGUAGE:CXX>:${CMAKE_CURRENT_SOURCE_DIR}/systemlib_header_only>"
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)
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add_library(imported_consumer imported_consumer.cpp)
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target_link_libraries(imported_consumer iface)
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target_compile_options(imported_consumer PRIVATE -Werror=unused-variable)
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add_library(imported_consumer2 imported_consumer.cpp)
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target_link_libraries(imported_consumer2 imported_consumer)
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target_compile_options(imported_consumer2 PRIVATE -Werror=unused-variable)
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# add a target which has a relative system include
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add_library(somelib imported_consumer.cpp)
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target_include_directories(somelib SYSTEM PUBLIC "systemlib_header_only")
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target_compile_options(somelib PRIVATE -Werror=unused-variable)
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# add a target which consumes a relative system include
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add_library(otherlib upstream.cpp)
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target_link_libraries(otherlib PUBLIC somelib)
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target_compile_options(somelib PRIVATE -Werror=unused-variable)
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macro(do_try_compile error_option)
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set(TC_ARGS
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IFACE_TRY_COMPILE_${error_option}
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"${CMAKE_CURRENT_BINARY_DIR}/try_compile_iface" "${CMAKE_CURRENT_SOURCE_DIR}/imported_consumer.cpp"
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LINK_LIBRARIES iface
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)
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if (${error_option} STREQUAL WITH_ERROR)
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list(APPEND TC_ARGS COMPILE_DEFINITIONS -Werror=unused-variable)
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endif()
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try_compile(${TC_ARGS})
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endmacro()
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do_try_compile(NO_ERROR)
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if (NOT IFACE_TRY_COMPILE_NO_ERROR)
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message(SEND_ERROR "try_compile failed with imported target.")
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endif()
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do_try_compile(WITH_ERROR)
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if (NOT IFACE_TRY_COMPILE_WITH_ERROR)
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message(SEND_ERROR "try_compile failed with imported target with error option.")
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endif()
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