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cmake_minimum_required(VERSION 2.8)
project(CompatibleInterface)
include(GenerateExportHeader)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
add_library(iface1 empty.cpp)
set_property(TARGET iface1 APPEND PROPERTY
COMPATIBLE_INTERFACE_BOOL
BOOL_PROP1
BOOL_PROP2
BOOL_PROP3
BOOL_PROP4
)
set_property(TARGET iface1 APPEND PROPERTY
COMPATIBLE_INTERFACE_STRING
STRING_PROP1
STRING_PROP2
STRING_PROP3
)
set_property(TARGET iface1 PROPERTY INTERFACE_BOOL_PROP1 ON)
set_property(TARGET iface1 PROPERTY INTERFACE_BOOL_PROP2 ON)
set_property(TARGET iface1 PROPERTY INTERFACE_STRING_PROP1 prop1)
set_property(TARGET iface1 PROPERTY INTERFACE_STRING_PROP2 prop2)
add_executable(CompatibleInterface main.cpp)
target_link_libraries(CompatibleInterface iface1)
set_property(TARGET CompatibleInterface PROPERTY BOOL_PROP2 ON)
set_property(TARGET CompatibleInterface PROPERTY BOOL_PROP3 ON)
set_property(TARGET CompatibleInterface PROPERTY STRING_PROP2 prop2)
set_property(TARGET CompatibleInterface PROPERTY STRING_PROP3 prop3)
target_compile_definitions(CompatibleInterface
PRIVATE
$<$<BOOL:$<TARGET_PROPERTY:BOOL_PROP1>>:BOOL_PROP1>
$<$<BOOL:$<TARGET_PROPERTY:BOOL_PROP2>>:BOOL_PROP2>
$<$<BOOL:$<TARGET_PROPERTY:BOOL_PROP3>>:BOOL_PROP3>
$<$<STREQUAL:$<TARGET_PROPERTY:STRING_PROP1>,prop1>:STRING_PROP1>
$<$<STREQUAL:$<TARGET_PROPERTY:STRING_PROP2>,prop2>:STRING_PROP2>
$<$<STREQUAL:$<TARGET_PROPERTY:STRING_PROP3>,prop3>:STRING_PROP3>
)
add_library(iface2 SHARED iface2.cpp)
generate_export_header(iface2)
set_property(TARGET iface2 APPEND PROPERTY
COMPATIBLE_INTERFACE_STRING
Iface2_PROP
)
# For the LINK_LIBRARIES and related properties, we should not evaluate
# properties defined only in the interface - they should be implicitly zero
set_property(TARGET iface2
APPEND PROPERTY
LINK_INTERFACE_LIBRARIES $<$<BOOL:$<TARGET_PROPERTY:BOOL_PROP4>>:nonexistant>
)
target_link_libraries(CompatibleInterface iface2
$<$<BOOL:$<TARGET_PROPERTY:Iface2_PROP>>:nonexistant>
)
# Test that this does not segfault:
target_compile_definitions(CompatibleInterface
PRIVATE
$<$<BOOL:$<TARGET_PROPERTY:Iface2_PROP>>:SOME_DEFINE>
)
# The COMPATIBLE_INTERFACE_* properties are only read from dependencies
# in the interface. Populating it on the CompatibleInterface target does
# not have any affect on the interpretation of the INTERFACE variants
# in dependencies.
set_property(TARGET iface1 PROPERTY
INTERFACE_NON_RELEVANT_PROP ON
)
set_property(TARGET iface2 PROPERTY
INTERFACE_NON_RELEVANT_PROP ON
)
set_property(TARGET CompatibleInterface APPEND PROPERTY
COMPATIBLE_INTERFACE_BOOL
NON_RELEVANT_PROP
)
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