370bf55415
* The ALIAS name must match a validity regex. * Executables and libraries may be aliased. * An ALIAS acts immutable. It can not be used as the lhs of target_link_libraries or other commands. * An ALIAS can be used with add_custom_command, add_custom_target, and add_test in the same way regular targets can. * The target of an ALIAS can be retrieved with the ALIASED_TARGET target property. * An ALIAS does not appear in the generated buildsystem. It is kept separate from cmMakefile::Targets for that reason. * A target may have multiple aliases. * An ALIAS target may not itself have an alias. * An IMPORTED target may not have an alias. * An ALIAS may not be exported or imported.
48 lines
1.5 KiB
CMake
48 lines
1.5 KiB
CMake
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cmake_minimum_required(VERSION 2.8.11)
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project(AliasTarget)
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add_library(foo SHARED empty.cpp)
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add_library(PREFIX::Foo ALIAS foo)
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add_library(Another::Alias ALIAS foo)
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add_library(objects OBJECT object.cpp)
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add_library(Alias::Objects ALIAS objects)
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target_compile_definitions(foo PUBLIC FOO_DEFINE)
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add_library(bar SHARED empty.cpp)
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target_compile_definitions(bar PUBLIC BAR_DEFINE)
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target_link_libraries(foo LINK_PUBLIC $<$<STREQUAL:$<TARGET_PROPERTY:PREFIX::Foo,ALIASED_TARGET>,foo>:bar>)
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add_executable(AliasTarget commandgenerator.cpp $<TARGET_OBJECTS:Alias::Objects>)
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add_executable(PREFIX::AliasTarget ALIAS AliasTarget)
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add_executable(Generator::Command ALIAS AliasTarget)
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add_custom_command(OUTPUT commandoutput.h COMMAND Generator::Command)
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add_library(bat SHARED bat.cpp "${CMAKE_CURRENT_BINARY_DIR}/commandoutput.h")
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target_link_libraries(bat PREFIX::Foo)
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target_include_directories(bat PRIVATE "${CMAKE_CURRENT_BINARY_DIR}")
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add_executable(targetgenerator targetgenerator.cpp)
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add_executable(Generator::Target ALIAS targetgenerator)
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add_custom_target(usealias Generator::Target)
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add_dependencies(bat usealias)
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if (NOT TARGET Another::Alias)
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message(SEND_ERROR "Another::Alias is not considered a target.")
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endif()
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get_target_property(_alt PREFIX::Foo ALIASED_TARGET)
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if (NOT ${_alt} STREQUAL foo)
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message(SEND_ERROR "ALIASED_TARGET is not foo: ${_alt}")
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endif()
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get_property(_alt2 TARGET PREFIX::Foo PROPERTY ALIASED_TARGET)
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if (NOT ${_alt2} STREQUAL foo)
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message(SEND_ERROR "ALIASED_TARGET is not foo.")
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endif()
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