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GTest: Use tribits_external_package_create_imported_all_libs_target_and_config_file() (TriBITSPub/TriBITS#299) #322

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Jul 12, 2022
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GTest: Use tribits_external_package_create_imported_all_libs_target_and_config_file() (TriBITSPub/TriBITS#299) #322

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38 changes: 4 additions & 34 deletions cmake/TPLs/FindTPLGTest.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -53,37 +53,7 @@
# ************************************************************************
# @HEADER

# First, set up the variables for the (backward-compatible) TriBITS way of
# finding GTest. These are used in case FIND_PACKAGE(GTest ...) is
# not called or does not find GTest. Also, these variables need to be
# non-null in order to trigger the right behavior in the function
# TRIBITS_TPL_FIND_INCLUDE_DIRS_AND_LIBRARIES().
set(REQUIRED_HEADERS gtest.h)
set(REQUIRED_LIBS_NAMES gtest)

# Second, search for GTest components (if allowed) using the standard
# FIND_PACKAGE(GTest ...).
tribits_tpl_allow_pre_find_package(GTest GTest_ALLOW_PREFIND)
if (GTest_ALLOW_PREFIND)
message("-- Using FIND_PACKAGE(GTest ...) ...")
find_package(GTest CONFIG)
if (GTest_FOUND)
get_target_property(GTest_INCLUDE_DIRS GTest::gtest INTERFACE_INCLUDE_DIRECTORIES)
get_target_property(GTest_CONFIGURATION GTest::gtest IMPORTED_CONFIGURATIONS)
get_target_property(GTest_LIBRARIES GTest::gtest IMPORTED_LOCATION_${GTest_CONFIGURATION})
# Tell TriBITS that we found GTest and there no need to look any further!
set(TPL_GTest_INCLUDE_DIRS ${GTest_INCLUDE_DIRS} CACHE PATH "...")
set(TPL_GTest_LIBRARIES ${GTest_LIBRARIES} CACHE FILEPATH "...")
set(TPL_GTest_LIBRARY_DIRS ${GTest_LIBRARY_DIRS} CACHE PATH "...")
endif()
endif()

# Third, call `tribits_tpl_find_include_dirs_and_libraries()`
tribits_tpl_find_include_dirs_and_libraries( GTest
REQUIRED_HEADERS ${REQUIRED_HEADERS}
REQUIRED_LIBS_NAMES ${REQUIRED_LIBS_NAMES}
)
# NOTE: If `find_package(GTest ...)` was called and successfully found
# GTest, then `tribits_tpl_find_include_dirs_and_libraries()` will use the
# already-set variables and just print them out. This is the final "hook"
# into the TriBITS TPL system.
find_package(GTest CONFIG REQUIRED)
tribits_external_package_create_imported_all_libs_target_and_config_file(GTest
INNER_FIND_PACKAGE_NAME GTest
IMPORTED_TARGETS_FOR_ALL_LIBS GTest::gtest )