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Telegram/ThirdParty/range-v3/cmake/gtest.cmake

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+# Copyright 2019 Eric Niebler
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+# Download and unpack googletest at configure time
+configure_file(cmake/GoogleTest.cmake.in google-test-download/CMakeLists.txt)
+
+execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
+  RESULT_VARIABLE result
+  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/google-test-download )
+
+if(result)
+  message(FATAL_ERROR "CMake step for google-test failed: ${result}")
+endif()
+
+execute_process(COMMAND ${CMAKE_COMMAND} --build .
+  RESULT_VARIABLE result
+  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/google-test-download )
+
+if(result)
+  message(FATAL_ERROR "Build step for google-test failed: ${result}")
+endif()
+
+# Prevent overriding the parent project's compiler/linker
+# settings on Windows
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+# Add google-test directly to our build. This defines
+# the gtest and gtest_main targets.
+add_subdirectory(${CMAKE_CURRENT_BINARY_DIR}/google-test-src
+                 ${CMAKE_CURRENT_BINARY_DIR}/google-test-build
+                 EXCLUDE_FROM_ALL)