mirror of
https://github.com/Kitware/CMake.git
synced 2026-04-22 06:09:14 -05:00
Deniz Bahadir
107 lines
4.0 KiB
CMake
107 lines
4.0 KiB
CMake
cmake_minimum_required(VERSION 3.0)
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get_property(_isMultiConfig GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
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if(NOT _isMultiConfig AND NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Debug CACHE STRING "Choose the type of build")
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endif()
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project(ConfigSources CXX)
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# Source file(s) named with the configuration(s).
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file(GENERATE
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OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/config_$<CONFIG>.cpp"
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CONTENT [[
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#if defined(_WIN32) && defined(OBJ_SHARED)
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__declspec(dllexport)
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#endif
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void config_$<CONFIG>() {}
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]]
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)
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# Per-config sources via INTERFACE_SOURCES.
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add_library(iface INTERFACE)
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target_sources(iface INTERFACE
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"${CMAKE_CURRENT_SOURCE_DIR}/iface_src.cpp"
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"$<$<CONFIG:Debug>:${CMAKE_CURRENT_SOURCE_DIR}/iface_debug_src.cpp>"
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"$<$<NOT:$<CONFIG:Debug>>:${CMAKE_CURRENT_SOURCE_DIR}/iface_other_src.cpp>"
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"$<$<CONFIG:NotAConfig>:${CMAKE_CURRENT_SOURCE_DIR}/does_not_exist.cpp>"
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)
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target_compile_definitions(iface INTERFACE
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"$<$<CONFIG:Debug>:CFG_DEBUG>"
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"$<$<NOT:$<CONFIG:Debug>>:CFG_OTHER>"
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)
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add_executable(ConfigSources
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$<$<CONFIG:Debug>:main_debug.cpp>
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$<$<NOT:$<CONFIG:Debug>>:main_other.cpp>
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$<$<CONFIG:NotAConfig>:does_not_exist.cpp>
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${CMAKE_CURRENT_BINARY_DIR}/config_$<CONFIG>.cpp
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)
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target_link_libraries(ConfigSources iface)
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# Per-config sources via LINK_LIBRARIES.
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add_library(iface_debug INTERFACE)
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target_sources(iface_debug INTERFACE
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"${CMAKE_CURRENT_SOURCE_DIR}/iface_src.cpp"
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"${CMAKE_CURRENT_SOURCE_DIR}/iface_debug_src.cpp"
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)
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add_library(iface_other INTERFACE)
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target_sources(iface_other INTERFACE
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"${CMAKE_CURRENT_SOURCE_DIR}/iface_src.cpp"
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"${CMAKE_CURRENT_SOURCE_DIR}/iface_other_src.cpp"
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)
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add_executable(ConfigSourcesLink main.cpp)
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target_compile_definitions(ConfigSourcesLink PRIVATE
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"$<$<CONFIG:Debug>:CFG_DEBUG>"
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"$<$<NOT:$<CONFIG:Debug>>:CFG_OTHER>"
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)
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target_link_libraries(ConfigSourcesLink PRIVATE
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"$<$<CONFIG:Debug>:iface_debug>"
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"$<$<NOT:$<CONFIG:Debug>>:iface_other>"
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"$<$<CONFIG:NotAConfig>:iface_does_not_exist>"
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)
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# Per-config sources via INTERFACE_LINK_LIBRARIES.
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add_library(ConfigSourcesIface INTERFACE)
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target_link_libraries(ConfigSourcesIface INTERFACE
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"$<$<CONFIG:Debug>:iface_debug>"
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"$<$<NOT:$<CONFIG:Debug>>:iface_other>"
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"$<$<CONFIG:NotAConfig>:iface_does_not_exist>"
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)
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add_executable(ConfigSourcesLinkIface main.cpp)
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target_compile_definitions(ConfigSourcesLinkIface PRIVATE
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"$<$<CONFIG:Debug>:CFG_DEBUG>"
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"$<$<NOT:$<CONFIG:Debug>>:CFG_OTHER>"
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)
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target_link_libraries(ConfigSourcesLinkIface ConfigSourcesIface)
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# A target with sources in only one configuration that is not the
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# first in CMAKE_CONFIGURATION_TYPES.
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if(CMAKE_CONFIGURATION_TYPES MATCHES ";([^;]+)")
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set(one_config "${CMAKE_MATCH_1}")
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else()
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set(one_config "${CMAKE_BUILD_TYPE}")
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endif()
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add_library(OneConfigOnly OBJECT "$<$<CONFIG:${one_config}>:${CMAKE_CURRENT_SOURCE_DIR}/iface_src.cpp>")
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set_property(TARGET OneConfigOnly PROPERTY LINKER_LANGUAGE CXX)
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# ---------------------------------------------------------------------------
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# Makes sure that each configuration uses the correct generated file.
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add_library(ObjLibFromGeneratedSources OBJECT)
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set_property(TARGET ObjLibFromGeneratedSources PROPERTY POSITION_INDEPENDENT_CODE 1)
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target_compile_definitions(ObjLibFromGeneratedSources PRIVATE OBJ_SHARED)
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target_sources(ObjLibFromGeneratedSources PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/config_$<CONFIG>.cpp)
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add_library(SharedLibFromObjLibFromGeneratedSources SHARED shared.cpp)
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target_link_libraries(SharedLibFromObjLibFromGeneratedSources PRIVATE ObjLibFromGeneratedSources)
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# ---------------------------------------------------------------------------
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# Make sure that additional build-events do not confuse CMake when using generated files.
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add_library(SharedLibFromGeneratedSources SHARED)
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set_property(TARGET SharedLibFromGeneratedSources PROPERTY POSITION_INDEPENDENT_CODE 1)
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target_sources(SharedLibFromGeneratedSources PRIVATE
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shared.cpp
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${CMAKE_CURRENT_BINARY_DIR}/config_$<CONFIG>.cpp
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)
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add_custom_command(TARGET SharedLibFromGeneratedSources POST_BUILD
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COMMAND "${CMAKE_COMMAND}" "-E" "echo" "$<TARGET_FILE:SharedLibFromGeneratedSources>"
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)
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