125 lines
3.6 KiB
CMake
125 lines
3.6 KiB
CMake
cmake_minimum_required(VERSION 2.8)
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project(target_link_libraries)
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file(WRITE
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"${CMAKE_CURRENT_BINARY_DIR}/main.cxx"
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"int main() { return 0; }
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"
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)
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add_executable(
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target_link_libraries
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"${CMAKE_CURRENT_BINARY_DIR}/main.cxx"
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)
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macro(ASSERT_PROPERTY _target _property _value)
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get_target_property(_out ${_target} ${_property})
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if (NOT _out)
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set(_out "")
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endif()
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if (NOT "${_out}" STREQUAL "${_value}")
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message(SEND_ERROR "Target ${_target} does not have property ${_property} with value ${_value}. Actual value: ${_out}")
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endif()
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endmacro()
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include(GenerateExportHeader)
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set(CMAKE_INCLUDE_CURRENT_DIR ON)
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add_library(depA SHARED depA.cpp)
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generate_export_header(depA)
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add_library(depB SHARED depB.cpp)
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generate_export_header(depB)
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target_link_libraries(depB LINK_PRIVATE depA)
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add_library(libgenex SHARED libgenex.cpp)
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generate_export_header(libgenex)
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set_property(TARGET depB APPEND PROPERTY
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LINK_LIBRARIES $<1:libgenex>
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)
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add_library(depC SHARED depC.cpp)
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generate_export_header(depC)
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target_link_libraries(depC LINK_PUBLIC depA)
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assert_property(depA LINK_INTERFACE_LIBRARIES "")
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assert_property(depB LINK_INTERFACE_LIBRARIES "")
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assert_property(depC LINK_INTERFACE_LIBRARIES "depA")
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add_executable(targetA targetA.cpp)
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target_link_libraries(targetA LINK_INTERFACE_LIBRARIES depA depB)
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assert_property(targetA LINK_INTERFACE_LIBRARIES "depA;depB")
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set_target_properties(targetA PROPERTIES LINK_INTERFACE_LIBRARIES "")
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assert_property(targetA LINK_INTERFACE_LIBRARIES "")
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add_subdirectory(subdir)
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target_link_libraries(targetA subdirlib)
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target_link_libraries(targetA depB depC)
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assert_property(targetA LINK_INTERFACE_LIBRARIES "")
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# Exclude depIfaceOnly from ALL so that it will only be built if something
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# depends on it. As it is in the link interface of depB, targetA
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# will depend on it. That dependency is what is being tested here.
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add_library(depIfaceOnly SHARED EXCLUDE_FROM_ALL depIfaceOnly.cpp)
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generate_export_header(depIfaceOnly)
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set_property(TARGET depB APPEND PROPERTY LINK_INTERFACE_LIBRARIES depIfaceOnly)
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add_library(depD SHARED depD.cpp)
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generate_export_header(depD)
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set_property(TARGET depD APPEND PROPERTY
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LINK_INTERFACE_LIBRARIES
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$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,EXECUTABLE>:depA>
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)
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add_executable(targetB targetB.cpp)
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target_link_libraries(targetB depD)
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macro(create_header _name)
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file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/${_name}")
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file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/${_name}/${_name}.h" "//${_name}.h\n")
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endmacro()
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create_header(foo)
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create_header(bar)
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add_library(depG SHARED depG.cpp)
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generate_export_header(depG)
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target_include_directories(depG INTERFACE
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"${CMAKE_CURRENT_BINARY_DIR}/foo"
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"${CMAKE_CURRENT_BINARY_DIR}/bar"
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)
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target_compile_definitions(depG INTERFACE
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TEST_DEF
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)
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add_executable(targetC targetC.cpp)
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if(NOT BORLAND AND NOT WATCOM)
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# Linking to a target containing a + should be non-fatal, though it does
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# not work at all on Borland or watcom
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add_library(wrapc++ empty.cpp)
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target_link_libraries(targetC wrapc++)
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endif()
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# The TARGET_PROPERTY expression is duplicated below to test that there is no
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# shortcutting of the evaluation by returning an empty string.
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set(_exe_test $<STREQUAL:$<TARGET_PROPERTY:TYPE>,EXECUTABLE>)
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target_link_libraries(targetC $<$<AND:${_exe_test},${_exe_test}>:depG>)
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add_library(libConsumer empty.cpp)
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# This line causes $<$<CONFIG:Debug>:depA> to be used when
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# determining the include directories for libConsumer based on the
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# interface properties of its LINK_LIBRARIES. Because the above expression
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# evaluates to the empty string in non-Debug cases, ensure that that causes
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# no problems.
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target_link_libraries(libConsumer debug depA)
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