Update documentation to syntax highlight code
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@@ -115,60 +115,64 @@ pulled into the main build with `add_subdirectory()`. For example:
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New file `CMakeLists.txt.in`:
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cmake_minimum_required(VERSION 2.8.2)
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``` cmake
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cmake_minimum_required(VERSION 2.8.2)
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project(googletest-download NONE)
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project(googletest-download NONE)
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include(ExternalProject)
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ExternalProject_Add(googletest
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GIT_REPOSITORY https://github.com/google/googletest.git
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GIT_TAG master
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SOURCE_DIR "${CMAKE_BINARY_DIR}/googletest-src"
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BINARY_DIR "${CMAKE_BINARY_DIR}/googletest-build"
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CONFIGURE_COMMAND ""
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BUILD_COMMAND ""
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INSTALL_COMMAND ""
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TEST_COMMAND ""
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)
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include(ExternalProject)
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ExternalProject_Add(googletest
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GIT_REPOSITORY https://github.com/google/googletest.git
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GIT_TAG master
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SOURCE_DIR "${CMAKE_BINARY_DIR}/googletest-src"
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BINARY_DIR "${CMAKE_BINARY_DIR}/googletest-build"
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CONFIGURE_COMMAND ""
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BUILD_COMMAND ""
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INSTALL_COMMAND ""
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TEST_COMMAND ""
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)
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```
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Existing build's `CMakeLists.txt`:
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# Download and unpack googletest at configure time
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configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)
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execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
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RESULT_VARIABLE result
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )
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if(result)
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message(FATAL_ERROR "CMake step for googletest failed: ${result}")
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endif()
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execute_process(COMMAND ${CMAKE_COMMAND} --build .
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RESULT_VARIABLE result
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )
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if(result)
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message(FATAL_ERROR "Build step for googletest failed: ${result}")
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endif()
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``` cmake
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# Download and unpack googletest at configure time
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configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)
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execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
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RESULT_VARIABLE result
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )
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if(result)
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message(FATAL_ERROR "CMake step for googletest failed: ${result}")
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endif()
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execute_process(COMMAND ${CMAKE_COMMAND} --build .
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RESULT_VARIABLE result
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )
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if(result)
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message(FATAL_ERROR "Build step for googletest failed: ${result}")
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endif()
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# Prevent overriding the parent project's compiler/linker
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# settings on Windows
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set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
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# Prevent overriding the parent project's compiler/linker
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# settings on Windows
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set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
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# Add googletest directly to our build. This defines
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# the gtest and gtest_main targets.
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add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
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${CMAKE_BINARY_DIR}/googletest-build
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EXCLUDE_FROM_ALL)
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# Add googletest directly to our build. This defines
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# the gtest and gtest_main targets.
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add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
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${CMAKE_BINARY_DIR}/googletest-build
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EXCLUDE_FROM_ALL)
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# The gtest/gtest_main targets carry header search path
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# dependencies automatically when using CMake 2.8.11 or
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# later. Otherwise we have to add them here ourselves.
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if (CMAKE_VERSION VERSION_LESS 2.8.11)
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include_directories("${gtest_SOURCE_DIR}/include")
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endif()
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# The gtest/gtest_main targets carry header search path
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# dependencies automatically when using CMake 2.8.11 or
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# later. Otherwise we have to add them here ourselves.
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if (CMAKE_VERSION VERSION_LESS 2.8.11)
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include_directories("${gtest_SOURCE_DIR}/include")
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endif()
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# Now simply link against gtest or gtest_main as needed. Eg
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add_executable(example example.cpp)
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target_link_libraries(example gtest_main)
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add_test(NAME example_test COMMAND example)
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# Now simply link against gtest or gtest_main as needed. Eg
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add_executable(example example.cpp)
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target_link_libraries(example gtest_main)
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add_test(NAME example_test COMMAND example)
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```
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Note that this approach requires CMake 2.8.2 or later due to its use of the
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`ExternalProject_Add()` command. The above technique is discussed in more detail
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