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2c470b775a
Loosen this restriction on OBJECT libraries to allow source files of any name to be generated by custom commands or listed for reference in IDE projects so long as they would not affect linking of a normal library. Update the rejection message to be more specific about the looser restriction. Extend the ObjectLibrary test to cover a ".cmake" file generated by a custom command in an OBJECT library.
70 lines
3.0 KiB
CMake
70 lines
3.0 KiB
CMake
cmake_minimum_required(VERSION 2.8)
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project(ObjectLibrary C)
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add_subdirectory(A)
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add_subdirectory(B)
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add_library(Cstatic STATIC c.c $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:B>)
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add_executable(UseCstatic main.c)
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target_link_libraries(UseCstatic Cstatic)
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add_library(Cshared SHARED c.c $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:Bexport>)
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add_executable(UseCshared main.c)
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set_property(TARGET UseCshared PROPERTY COMPILE_DEFINITIONS SHARED_C)
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target_link_libraries(UseCshared Cshared)
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add_custom_command(TARGET UseCshared POST_BUILD COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/A/a.cmake)
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add_executable(UseCinternal main.c c.c $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:B>)
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if("${CMAKE_GENERATOR}" MATCHES "^Visual Studio (6|7|7 .NET 2003)$")
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# VS 6 and 7 generators do not add objects as sources so we need a
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# dummy object to convince the IDE to build the targets below.
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set(dummy dummy.obj) # In MinGW: gcc -c dummy.c -o dummy.obj
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elseif("${CMAKE_GENERATOR}" MATCHES "Xcode")
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# Xcode does not seem to support targets without sources.
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set(dummy dummy.c)
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endif()
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# Test static library without its own sources.
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add_library(ABstatic STATIC ${dummy} $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:B>)
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target_include_directories(ABstatic PUBLIC $<TARGET_PROPERTY:B,INTERFACE_INCLUDE_DIRECTORIES>)
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target_compile_definitions(ABstatic PUBLIC $<TARGET_PROPERTY:B,INTERFACE_COMPILE_DEFINITIONS>)
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add_executable(UseABstatic mainAB.c)
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target_link_libraries(UseABstatic ABstatic)
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# Test module definition file to export object library symbols in the test
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# below if the platform needs and supports it.
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set(ABshared_SRCS $<TARGET_OBJECTS:A>)
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if(CMAKE_LINK_DEF_FILE_FLAG OR NOT WIN32)
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list(APPEND ABshared_SRCS $<TARGET_OBJECTS:B> AB.def)
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else()
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set(NO_A NO_A)
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list(APPEND ABshared_SRCS $<TARGET_OBJECTS:Bexport>)
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endif()
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# Test shared library without its own sources.
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add_library(ABshared SHARED ${dummy} ${ABshared_SRCS})
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target_include_directories(ABshared PUBLIC $<TARGET_PROPERTY:B,INTERFACE_INCLUDE_DIRECTORIES>)
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target_compile_definitions(ABshared PUBLIC $<TARGET_PROPERTY:B,INTERFACE_COMPILE_DEFINITIONS>)
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add_executable(UseABshared mainAB.c)
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set_property(TARGET UseABshared PROPERTY COMPILE_DEFINITIONS SHARED_B ${NO_A})
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target_link_libraries(UseABshared ABshared)
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# Test executable without its own sources.
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add_library(ABmain OBJECT mainAB.c)
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target_include_directories(ABmain PUBLIC $<TARGET_PROPERTY:B,INTERFACE_INCLUDE_DIRECTORIES>)
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target_compile_definitions(ABmain PUBLIC $<TARGET_PROPERTY:B,INTERFACE_COMPILE_DEFINITIONS>)
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add_executable(UseABinternal ${dummy}
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$<TARGET_OBJECTS:ABmain> $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:B>
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)
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# Test target-level dependencies of executable without sources.
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file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/UseABinternalDep.cmake)
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add_custom_target(UseABinternalDep COMMAND ${CMAKE_COMMAND} -E touch UseABinternalDep.cmake)
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add_custom_command(TARGET UseABinternal POST_BUILD COMMAND ${CMAKE_COMMAND} -P UseABinternalDep.cmake)
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add_dependencies(UseABinternal UseABinternalDep)
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add_subdirectory(ExportLanguages)
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