FindGTest: Add imported targets and update documentation
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Roger Leigh
Roger Leigh
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611735e76e
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#
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# Locate the Google C++ Testing Framework.
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#
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# Defines the following variables:
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# Imported targets
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# ^^^^^^^^^^^^^^^^
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#
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# ::
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# This module defines the following :prop_tgt:`IMPORTED` targets:
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#
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# GTEST_FOUND - Found the Google Testing framework
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# GTEST_INCLUDE_DIRS - Include directories
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# ``GTest::GTest``
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# The Google Test ``gtest`` library, if found; adds Thread::Thread
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# automatically
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# ``GTest::Main``
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# The Google Test ``gtest_main`` library, if found
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#
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#
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# Result variables
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# ^^^^^^^^^^^^^^^^
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#
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# Also defines the library variables below as normal variables. These
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# This module will set the following variables in your project:
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#
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# ``GTEST_FOUND``
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# Found the Google Testing framework
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# ``GTEST_INCLUDE_DIRS``
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# the directory containing the Google Test headers
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#
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# The library variables below are set as normal variables. These
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# contain debug/optimized keywords when a debugging library is found.
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#
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# ::
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# ``GTEST_LIBRARIES``
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# The Google Test ``gtest`` library; note it also requires linking
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# with an appropriate thread library
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# ``GTEST_MAIN_LIBRARIES``
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# The Google Test ``gtest_main`` library
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# ``GTEST_BOTH_LIBRARIES``
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# Both ``gtest`` and ``gtest_main``
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#
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# GTEST_BOTH_LIBRARIES - Both libgtest & libgtest-main
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# GTEST_LIBRARIES - libgtest
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# GTEST_MAIN_LIBRARIES - libgtest-main
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# Cache variables
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# ^^^^^^^^^^^^^^^
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#
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# The following cache variables may also be set:
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#
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# ``GTEST_ROOT``
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# The root directory of the Google Test installation (may also be
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# set as an environment variable)
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# ``GTEST_MSVC_SEARCH``
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# If compiling with MSVC, this variable can be set to ``MD`` or
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# ``MT`` (the default) to enable searching a GTest build tree
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#
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#
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#
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# Accepts the following variables as input:
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#
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# ::
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#
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# GTEST_ROOT - (as a CMake or environment variable)
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# The root directory of the gtest install prefix
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#
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#
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#
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# ::
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#
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# GTEST_MSVC_SEARCH - If compiling with MSVC, this variable can be set to
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# "MD" or "MT" to enable searching a GTest build tree
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# (defaults: "MD")
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#
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#
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#
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# Example Usage:
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# Example usage
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# ^^^^^^^^^^^^^
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#
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# ::
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#
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# enable_testing()
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# find_package(GTest REQUIRED)
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# include_directories(${GTEST_INCLUDE_DIRS})
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#
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#
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#
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# ::
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#
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# add_executable(foo foo.cc)
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# target_link_libraries(foo ${GTEST_BOTH_LIBRARIES})
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#
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#
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#
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# ::
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# target_link_libraries(foo GTest::GTest GTest::Main)
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#
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# add_test(AllTestsInFoo foo)
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#
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#
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#
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#
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# Deeper integration with CTest
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# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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#
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# If you would like each Google test to show up in CTest as a test you
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# may use the following macro. NOTE: It will slow down your tests by
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# running an executable for each test and test fixture. You will also
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# have to rerun CMake after adding or removing tests or test fixtures.
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# may use the following macro::
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#
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# GTEST_ADD_TESTS(executable extra_args ARGN)
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# GTEST_ADD_TESTS(executable extra_args files...)
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#
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# ::
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# ``executable``
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# the path to the test executable
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# ``extra_args``
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# a list of extra arguments to be passed to executable enclosed in
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# quotes (or ``""`` for none)
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# ``files...``
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# a list of source files to search for tests and test fixtures. Or
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# ``AUTO`` to find them from executable target
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#
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# executable = The path to the test executable
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# extra_args = Pass a list of extra arguments to be passed to
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# executable enclosed in quotes (or "" for none)
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# ARGN = A list of source files to search for tests & test
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# fixtures. Or AUTO to find them from executable target.
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# However, note that this macro will slow down your tests by running
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# an executable for each test and test fixture. You will also have to
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# re-run CMake after adding or removing tests or test fixtures.
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#
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# Example usage::
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#
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#
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# ::
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#
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# Example:
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# set(FooTestArgs --foo 1 --bar 2)
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# add_executable(FooTest FooUnitTest.cc)
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# GTEST_ADD_TESTS(FooTest "${FooTestArgs}" AUTO)
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@ -208,5 +209,60 @@ if(GTEST_FOUND)
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_gtest_append_debugs(GTEST_LIBRARIES GTEST_LIBRARY)
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_gtest_append_debugs(GTEST_MAIN_LIBRARIES GTEST_MAIN_LIBRARY)
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set(GTEST_BOTH_LIBRARIES ${GTEST_LIBRARIES} ${GTEST_MAIN_LIBRARIES})
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endif()
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include(CMakeFindDependencyMacro)
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find_dependency(Threads)
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if(NOT TARGET GTest::GTest)
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add_library(GTest::GTest UNKNOWN IMPORTED)
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set_target_properties(GTest::GTest PROPERTIES
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INTERFACE_LINK_LIBRARIES "Threads::Threads")
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if(GTEST_INCLUDE_DIRS)
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set_target_properties(GTest::GTest PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${GTEST_INCLUDE_DIRS}")
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endif()
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if(EXISTS "${GTEST_LIBRARY}")
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set_target_properties(GTest::GTest PROPERTIES
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IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
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IMPORTED_LOCATION "${GTEST_LIBRARY}")
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endif()
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if(EXISTS "${GTEST_LIBRARY_DEBUG}")
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set_property(TARGET GTest::GTest APPEND PROPERTY
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IMPORTED_CONFIGURATIONS DEBUG)
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set_target_properties(GTest::GTest PROPERTIES
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IMPORTED_LINK_INTERFACE_LANGUAGES_DEBUG "CXX"
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IMPORTED_LOCATION_DEBUG "${GTEST_LIBRARY_DEBUG}")
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endif()
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if(EXISTS "${GTEST_LIBRARY_RELEASE}")
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set_property(TARGET GTest::GTest APPEND PROPERTY
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IMPORTED_CONFIGURATIONS RELEASE)
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set_target_properties(GTest::GTest PROPERTIES
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IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "CXX"
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IMPORTED_LOCATION_RELEASE "${GTEST_LIBRARY_RELEASE}")
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endif()
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endif()
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if(NOT TARGET GTest::Main)
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add_library(GTest::Main UNKNOWN IMPORTED)
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set_target_properties(GTest::Main PROPERTIES
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INTERFACE_LINK_LIBRARIES "GTest::GTest")
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if(EXISTS "${GTEST_MAIN_LIBRARY}")
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set_target_properties(GTest::Main PROPERTIES
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IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
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IMPORTED_LOCATION "${GTEST_MAIN_LIBRARY}")
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endif()
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if(EXISTS "${GTEST_MAIN_LIBRARY_DEBUG}")
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set_property(TARGET GTest::Main APPEND PROPERTY
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IMPORTED_CONFIGURATIONS DEBUG)
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set_target_properties(GTest::Main PROPERTIES
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IMPORTED_LINK_INTERFACE_LANGUAGES_DEBUG "CXX"
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IMPORTED_LOCATION_DEBUG "${GTEST_MAIN_LIBRARY_DEBUG}")
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endif()
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if(EXISTS "${GTEST_MAIN_LIBRARY_RELEASE}")
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set_property(TARGET GTest::Main APPEND PROPERTY
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IMPORTED_CONFIGURATIONS RELEASE)
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set_target_properties(GTest::Main PROPERTIES
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IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "CXX"
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IMPORTED_LOCATION_RELEASE "${GTEST_MAIN_LIBRARY_RELEASE}")
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endif()
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endif()
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endif()
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