CMakeLists.txt 10.7 KB
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cmake_minimum_required (VERSION 2.7.20090711)
project(Export C CXX)
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# Pretend that RelWithDebInfo should link to debug libraries to test
# the DEBUG_CONFIGURATIONS property.
set_property(GLOBAL PROPERTY DEBUG_CONFIGURATIONS Debug RelWithDebInfo)

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add_library(testExe1lib STATIC testExe1lib.c) # not exported
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add_executable(testExe1 testExe1.c)
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target_link_libraries(testExe1 testExe1lib)
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set_property(TARGET testExe1 PROPERTY VERSION 4)
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add_library(testExe2libImp SHARED testExe2libImp.c)
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set_property(TARGET testExe2libImp PROPERTY LIBRARY_OUTPUT_DIRECTORY impl)
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add_library(testExe2lib SHARED testExe2lib.c)
target_link_libraries(testExe2lib testExe2libImp)
set_property(TARGET testExe2lib PROPERTY LINK_INTERFACE_LIBRARIES "")
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add_executable(testExe2 testExe2.c)
set_property(TARGET testExe2 PROPERTY ENABLE_EXPORTS 1)
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set_property(TARGET testExe2 PROPERTY LINK_INTERFACE_LIBRARIES testExe2lib)
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add_library(testLib1 STATIC testLib1.c)
add_library(testLib2 STATIC testLib2.c)
target_link_libraries(testLib2 testLib1)

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# Test library with empty link interface.  Link it to an implementation
# dependency that itself links to dependencies publicly.
add_library(testLib3ImpDep SHARED testLib3ImpDep.c)
set_property(TARGET testLib3ImpDep PROPERTY LIBRARY_OUTPUT_DIRECTORY impl/dep)
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add_library(testLib3Imp SHARED testLib3Imp.c)
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set_property(TARGET testLib3Imp PROPERTY LIBRARY_OUTPUT_DIRECTORY impl)
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target_link_libraries(testLib3Imp testLib3ImpDep)
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add_library(testLib3 SHARED testLib3.c)
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target_link_libraries(testLib3 testLib3Imp)
set_property(TARGET testLib3 PROPERTY LINK_INTERFACE_LIBRARIES "")
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set_property(TARGET testLib3 PROPERTY VERSION 1.2)
set_property(TARGET testLib3 PROPERTY SOVERSION 3)
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# Test <ARCHIVE|LIBRARY|RUNTIME>_OUTPUT_NAME[_<CONFIG>] properties.
set_property(TARGET testLib3 PROPERTY RUNTIME_OUTPUT_NAME_DEBUG testLib3dll-d)
set_property(TARGET testLib3 PROPERTY RUNTIME_OUTPUT_NAME_RELEASE testLib3dll-r)
set_property(TARGET testLib3 PROPERTY RUNTIME_OUTPUT_NAME testLib3dll)
set_property(TARGET testLib3 PROPERTY LIBRARY_OUTPUT_NAME_DEBUG testLib3lib-d)
set_property(TARGET testLib3 PROPERTY LIBRARY_OUTPUT_NAME_RELEASE testLib3lib-r)
set_property(TARGET testLib3 PROPERTY LIBRARY_OUTPUT_NAME testLib3lib)
set_property(TARGET testLib3 PROPERTY ARCHIVE_OUTPUT_NAME testLib3import)

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add_library(testLib4 SHARED testLib4.c)
set_property(TARGET testLib4 PROPERTY FRAMEWORK 1)

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add_library(testLib5 SHARED testLib5.c)

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add_library(testLib6 STATIC testLib6.cxx testLib6c.c)
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# Work-around: Visual Studio 6 does not support per-target object files.
set(VS6)
if("${CMAKE_GENERATOR}" MATCHES "Visual Studio 6")
  set(VS6 1)
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endif()
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# Test using the target_link_libraries command to set the
# LINK_INTERFACE_LIBRARIES* properties.  We construct two libraries
# providing the same two symbols.  In each library one of the symbols
# will work and the other one will fail to link.  The import part of
# this test will try to use the symbol corresponding to the
# configuration in which it is built.  If the proper library is not
# used via the link interface the import test will fail to link.
add_library(testLib4lib STATIC testLib4lib.c)
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add_library(testLib4libdbg STATIC testLib4libopt.c testLib4libdbg${VS6}.c)
add_library(testLib4libopt STATIC testLib4libdbg.c testLib4libopt${VS6}.c)
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set_property(TARGET testLib4libdbg PROPERTY COMPILE_DEFINITIONS LIB_DBG)
set_property(TARGET testLib4libopt PROPERTY COMPILE_DEFINITIONS LIB_OPT)
target_link_libraries(testLib4
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  LINK_INTERFACE_LIBRARIES
  testLib4lib debug testLib4libdbg optimized testLib4libopt
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  )

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add_executable(testExe3 testExe3.c)
set_property(TARGET testExe3 PROPERTY MACOSX_BUNDLE 1)

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# Test cyclic dependencies.
add_library(testLibCycleA STATIC
  testLibCycleA1.c testLibCycleA2.c testLibCycleA3.c)
add_library(testLibCycleB STATIC
  testLibCycleB1.c testLibCycleB2.c testLibCycleB3.c)
target_link_libraries(testLibCycleA testLibCycleB)
target_link_libraries(testLibCycleB testLibCycleA)
set_property(TARGET testLibCycleA PROPERTY LINK_INTERFACE_MULTIPLICITY 3)

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# Test exporting dependent libraries into different exports
add_library(testLibRequired testLibRequired.c)
add_library(testLibDepends testLibDepends.c)
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set_property(TARGET testLibDepends APPEND PROPERTY
  INCLUDE_DIRECTORIES
    $<TARGET_PROPERTY:testLibRequired,INTERFACE_INCLUDE_DIRECTORIES>
)
set_property(TARGET testLibDepends APPEND PROPERTY
  COMPILE_DEFINITIONS
    $<TARGET_PROPERTY:testLibRequired,INTERFACE_COMPILE_DEFINITIONS>
)
set_property(TARGET testLibDepends APPEND PROPERTY
  INTERFACE_INCLUDE_DIRECTORIES
    $<TARGET_PROPERTY:testLibRequired,INTERFACE_INCLUDE_DIRECTORIES>
)
set_property(TARGET testLibDepends APPEND PROPERTY
  INTERFACE_COMPILE_DEFINITIONS
    $<TARGET_PROPERTY:testLibRequired,INTERFACE_COMPILE_DEFINITIONS>
)
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target_link_libraries(testLibDepends testLibRequired)

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macro(add_include_lib _libName)
  file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/${_libName}.c" "// no content\n")
  add_library(${_libName} "${CMAKE_CURRENT_BINARY_DIR}/${_libName}.c")
  file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/${_libName}")
  set_property(TARGET ${_libName} APPEND PROPERTY
      INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_BINARY_DIR}/${_libName}")
  if (NOT "${ARGV1}" STREQUAL "NO_HEADER")
      file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/${_libName}/${_libName}.h" "// no content\n")
  endif()
endmacro()

add_include_lib(testLibIncludeRequired1)
add_include_lib(testLibIncludeRequired2)
add_include_lib(testLibIncludeRequired3 NO_HEADER)
# Generate testLibIncludeRequired4 in the testLibIncludeRequired3 directory
# with an error. If the includes from testLibIncludeRequired3 appear first,
# the error will be hit.
# Below, the '3' library appears before the '4' library
# but we are testing that the INSTALL_INTERFACE causes it not to be used
# at build time.
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/testLibIncludeRequired3/testLibIncludeRequired4.h" "#error Should not be included\n")
add_include_lib(testLibIncludeRequired4)
add_include_lib(testLibIncludeRequired5 NO_HEADER)
# Generate testLibIncludeRequired6 in the testLibIncludeRequired5 directory
# with an error. If the includes from testLibIncludeRequired5 appear first,
# the error will be hit.
# Below, the '5' library appears before the '6' library
# but we are testing that when the installed IMPORTED target is used, from
# the Import side of this unit test, the '6' include from the '5' directory
# will not be used because it is in the BUILD_INTERFACE only.
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/testLibIncludeRequired5/testLibIncludeRequired6.h" "#error Should not be included\n")
add_include_lib(testLibIncludeRequired6)

set_property(TARGET testLibRequired APPEND PROPERTY
  INTERFACE_INCLUDE_DIRECTORIES
    $<TARGET_PROPERTY:testLibIncludeRequired1,INTERFACE_INCLUDE_DIRECTORIES>
    $<TARGET_PROPERTY:$<1:$<TARGET_NAME:testLibIncludeRequired2>>,INTERFACE_INCLUDE_DIRECTORIES>
    $<INSTALL_INTERFACE:$<TARGET_PROPERTY:testLibIncludeRequired3,INTERFACE_INCLUDE_DIRECTORIES>>
    $<BUILD_INTERFACE:$<TARGET_PROPERTY:testLibIncludeRequired4,INTERFACE_INCLUDE_DIRECTORIES>>
    $<BUILD_INTERFACE:$<TARGET_PROPERTY:testLibIncludeRequired5,INTERFACE_INCLUDE_DIRECTORIES>>
    $<INSTALL_INTERFACE:$<TARGET_PROPERTY:testLibIncludeRequired6,INTERFACE_INCLUDE_DIRECTORIES>>
)

set_property(TARGET testLibRequired APPEND PROPERTY
  INTERFACE_COMPILE_DEFINITIONS
    testLibRequired_IFACE_DEFINE
    $<BUILD_INTERFACE:BuildOnly_DEFINE>
    $<INSTALL_INTERFACE:InstallOnly_DEFINE>
)

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include(GenerateExportHeader)

add_library(testSharedLibRequired SHARED testSharedLibRequired.cpp)
generate_export_header(testSharedLibRequired)
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set_property(TARGET testSharedLibRequired
  PROPERTY
    INTERFACE_POSITION_INDEPENDENT_CODE ON
)
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set_property(TARGET testSharedLibRequired APPEND PROPERTY
  INCLUDE_DIRECTORIES "${CMAKE_CURRENT_BINARY_DIR}"
)
set_property(TARGET testSharedLibRequired APPEND PROPERTY
  INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_BINARY_DIR}"
                                "${CMAKE_CURRENT_SOURCE_DIR}"
)

add_library(testSharedLibDepends SHARED testSharedLibDepends.cpp)
set_property(TARGET testSharedLibDepends APPEND PROPERTY
  INCLUDE_DIRECTORIES "${CMAKE_CURRENT_BINARY_DIR}"
)
generate_export_header(testSharedLibDepends)

set_property(TARGET testSharedLibDepends APPEND PROPERTY
  INTERFACE_INCLUDE_DIRECTORIES
    $<TARGET_PROPERTY:testSharedLibRequired,INTERFACE_INCLUDE_DIRECTORIES>
)
set_property(TARGET testSharedLibDepends APPEND PROPERTY
  LINK_INTERFACE_LIBRARIES
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    $<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,EXECUTABLE>:$<TARGET_NAME:testSharedLibRequired>>
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)

# LINK_PRIVATE because the LINK_INTERFACE_LIBRARIES is specified above.
target_link_libraries(testSharedLibDepends LINK_PRIVATE testSharedLibRequired)

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install(TARGETS testLibRequired
                testLibIncludeRequired1
                testLibIncludeRequired2
                testLibIncludeRequired3
                testLibIncludeRequired4
                testLibIncludeRequired5
                testLibIncludeRequired6
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                testSharedLibRequired
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        EXPORT RequiredExp DESTINATION lib )
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install(EXPORT RequiredExp NAMESPACE Req:: FILE testLibRequiredConfig.cmake DESTINATION lib/cmake/testLibRequired)

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install(TARGETS testLibDepends testSharedLibDepends EXPORT DependsExp DESTINATION lib )
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install(EXPORT DependsExp FILE testLibDependsConfig.cmake DESTINATION lib/cmake/testLibDepends)


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# Install and export from install tree.
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install(
  TARGETS
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  testExe1 testLib1 testLib2 testExe2 testLib3 testLib4 testExe3
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  testExe2lib testLib4lib testLib4libdbg testLib4libopt
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  testLib6
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  testLibCycleA testLibCycleB
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  EXPORT exp
  RUNTIME DESTINATION bin
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  LIBRARY DESTINATION lib NAMELINK_SKIP
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  ARCHIVE DESTINATION lib
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  FRAMEWORK DESTINATION Frameworks
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  BUNDLE DESTINATION Applications
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  )
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install(
  TARGETS
  testExe2libImp testLib3Imp
  EXPORT exp
  RUNTIME DESTINATION bin
  LIBRARY DESTINATION lib/impl
  ARCHIVE DESTINATION lib/impl
  )
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install(
  TARGETS
  testLib3ImpDep
  EXPORT exp
  RUNTIME DESTINATION bin
  LIBRARY DESTINATION lib/impl/dep
  ARCHIVE DESTINATION lib/impl/dep
  )
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install(
  TARGETS testLib5
  EXPORT exp
  # Leave out RUNTIME DESTINATION to test implib-only export.
  LIBRARY DESTINATION lib
  ARCHIVE DESTINATION lib
  )
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install(EXPORT exp NAMESPACE exp_ DESTINATION lib/exp)

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# Install testLib5.dll outside the export.
if(WIN32)
  install(TARGETS testLib5 RUNTIME DESTINATION bin)
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endif()
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add_subdirectory(sublib) # For CMAKE_BUILD_INTERFACE_INCLUDES test.

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# Export from build tree.
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export(TARGETS testExe1 testLib1 testLib2 testLib3
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  testExe2libImp testLib3Imp testLib3ImpDep subdirlib
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  testSharedLibRequired testSharedLibDepends
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  NAMESPACE bld_
  FILE ExportBuildTree.cmake
  )
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export(TARGETS testExe2 testLib4 testLib5 testLib6 testExe3 testExe2lib
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  testLib4lib testLib4libdbg testLib4libopt
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  testLibCycleA testLibCycleB
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  NAMESPACE bld_
  APPEND FILE ExportBuildTree.cmake
  )