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macro(_build_gtest gtest_root)
include(ExternalProject)
set(gtest_library ${CMAKE_STATIC_LIBRARY_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX})
set(gtest_main_library ${CMAKE_STATIC_LIBRARY_PREFIX}gtest_main${CMAKE_STATIC_LIBRARY_SUFFIX})
set(gmock_library ${CMAKE_STATIC_LIBRARY_PREFIX}gmock${CMAKE_STATIC_LIBRARY_SUFFIX})
set(gmock_main_library ${CMAKE_STATIC_LIBRARY_PREFIX}gmock_main${CMAKE_STATIC_LIBRARY_SUFFIX})
ExternalProject_Add(googletest
SOURCE_DIR ${gtest_root}
CMAKE_ARGS -DBUILD_GMOCK=OFF -DBUILD_GTEST=ON
BUILD_BYPRODUCTS
<BINARY_DIR>/lib/${gtest_library}
<BINARY_DIR>/lib/${gtest_main_library}
<BINARY_DIR>/lib/${gmock_library}
<BINARY_DIR>/lib/${gmock_main_library}
INSTALL_COMMAND ""
LOG_CONFIGURE ON
LOG_BUILD ON)
ExternalProject_Get_Property(googletest source_dir)
find_path(GTEST_INCLUDE_DIRS
NAMES gtest/gtest.h
PATHS ${source_dir}/include /usr/include)
find_path(GMOCK_INCLUDE_DIRS
NAMES gmock/gmock.h
PATHS ${source_dir}/googlemock/include /usr/include)
find_package(Threads REQUIRED)
ExternalProject_Get_Property(googletest binary_dir)
set(GTEST_LIBRARY_PATH ${binary_dir}/lib/${gtest_library})
unset(gtest_library)
set(GTEST_LIBRARY GTest::GTest)
add_library(${GTEST_LIBRARY} STATIC IMPORTED)
set_target_properties(${GTEST_LIBRARY} PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${GTEST_INCLUDE_DIRS}"
IMPORTED_LOCATION ${GTEST_LIBRARY_PATH}
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LINK_INTERFACE_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
add_dependencies(${GTEST_LIBRARY} googletest)
set(GTEST_LIBRARIES ${GTEST_LIBRARY})
set(GTEST_MAIN_LIBRARY_PATH ${binary_dir}/lib/${gtest_main_library})
unset(gtest_main_library)
set(GTEST_MAIN_LIBRARY GTest::Main)
add_library(${GTEST_MAIN_LIBRARY} STATIC IMPORTED)
set_target_properties(${GTEST_MAIN_LIBRARY} PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${GTEST_INCLUDE_DIRS}"
IMPORTED_LOCATION ${GTEST_MAIN_LIBRARY_PATH}
IMPORTED_LINK_INTERFACE_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
add_dependencies(${GTEST_MAIN_LIBRARY} googletest)
set(GMOCK_LIBRARY_PATH ${binary_dir}/lib/${gmock_library})
unset(gmock_library)
set(GMOCK_LIBRARY GMock::GMock)
add_library(${GMOCK_LIBRARY} STATIC IMPORTED)
set_target_properties(${GMOCK_LIBRARY} PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${GMOCK_INCLUDE_DIRS}"
IMPORTED_LOCATION "${GMOCK_LIBRARY_PATH}"
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LINK_INTERFACE_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
add_dependencies(${GMOCK_LIBRARY} googletest)
set(GMOCK_MAIN_LIBRARY_PATH ${binary_dir}/lib/${gmock_main_library})
unset(gmock_main_library)
set(GMOCK_MAIN_LIBRARY GMock::Main)
add_library(${GMOCK_MAIN_LIBRARY} STATIC IMPORTED)
set_target_properties(${GMOCK_MAIN_LIBRARY} PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${GMOCK_INCLUDE_DIRS}"
IMPORTED_LOCATION ${GMOCK_MAIN_LIBRARY_PATH}
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LINK_INTERFACE_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
add_dependencies(${GMOCK_MAIN_LIBRARY} ${GTEST_LIBRARY})
endmacro()
find_path(GTEST_ROOT src/gtest.cc
HINTS $ENV{GTEST_ROOT}
PATHS /usr/src/googletest/googletest /usr/src/gtest)
if(EXISTS ${GTEST_ROOT})
message(STATUS "Found googletest: ${GTEST_ROOT}")
_build_gtest(${GTEST_ROOT})
else()
message(SEND_ERROR "Could NOT find googletest")
endif()
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