d396df723f
There is no need to use the embedded gtest code copy in Linux systems, if they already provide the googletest framework system-wide. Search for it, and fallback to the embedded one if the system one is not detected. This patch has been also contributed by Simon Quigley <tsimonq2@debian.org>
212 lines
6.9 KiB
CMake
212 lines
6.9 KiB
CMake
# 3.5 is actually available almost everywhere, but this a good minimum.
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# 3.14 as the upper policy limit avoids CMake deprecation warnings.
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cmake_minimum_required(VERSION 3.4...3.14)
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# enable MSVC_RUNTIME_LIBRARY target property
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# see https://cmake.org/cmake/help/latest/policy/CMP0091.html
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if(POLICY CMP0091)
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cmake_policy(SET CMP0091 NEW)
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endif()
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project(YAML_CPP VERSION 0.8.0 LANGUAGES CXX)
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set(YAML_CPP_MAIN_PROJECT OFF)
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if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
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set(YAML_CPP_MAIN_PROJECT ON)
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endif()
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include(CMakePackageConfigHelpers)
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include(CMakeDependentOption)
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include(CheckCXXCompilerFlag)
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include(GNUInstallDirs)
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include(CTest)
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option(YAML_CPP_BUILD_CONTRIB "Enable yaml-cpp contrib in library" ON)
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option(YAML_CPP_BUILD_TOOLS "Enable parse tools" ON)
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option(YAML_BUILD_SHARED_LIBS "Build yaml-cpp shared library" ${BUILD_SHARED_LIBS})
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option(YAML_CPP_INSTALL "Enable generation of yaml-cpp install targets" ${YAML_CPP_MAIN_PROJECT})
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option(YAML_CPP_FORMAT_SOURCE "Format source" ${YAML_CPP_MAIN_PROJECT})
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option(YAML_CPP_DISABLE_UNINSTALL "Disable uninstallation of yaml-cpp" OFF)
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option(YAML_USE_SYSTEM_GTEST "Use system googletest if found" OFF)
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cmake_dependent_option(YAML_CPP_BUILD_TESTS
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"Enable yaml-cpp tests" OFF
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"BUILD_TESTING;YAML_CPP_MAIN_PROJECT" OFF)
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cmake_dependent_option(YAML_MSVC_SHARED_RT
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"MSVC: Build yaml-cpp with shared runtime libs (/MD)" ON
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"CMAKE_SYSTEM_NAME MATCHES Windows" OFF)
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set(YAML_CPP_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/yaml-cpp"
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CACHE STRING "Path to install the CMake package to")
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if (YAML_CPP_FORMAT_SOURCE)
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find_program(YAML_CPP_CLANG_FORMAT_EXE NAMES clang-format)
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endif()
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if (YAML_BUILD_SHARED_LIBS)
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set(yaml-cpp-type SHARED)
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set(yaml-cpp-label-postfix "shared")
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else()
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set(yaml-cpp-type STATIC)
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set(yaml-cpp-label-postfix "static")
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endif()
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set(build-shared $<BOOL:${YAML_BUILD_SHARED_LIBS}>)
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set(build-windows-dll $<AND:$<BOOL:${CMAKE_HOST_WIN32}>,${build-shared}>)
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set(not-msvc $<NOT:$<CXX_COMPILER_ID:MSVC>>)
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set(msvc-shared_rt $<BOOL:${YAML_MSVC_SHARED_RT}>)
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if (NOT DEFINED CMAKE_MSVC_RUNTIME_LIBRARY)
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set(CMAKE_MSVC_RUNTIME_LIBRARY
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MultiThreaded$<$<CONFIG:Debug>:Debug>$<${msvc-shared_rt}:DLL>)
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endif()
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set(contrib-pattern "src/contrib/*.cpp")
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set(src-pattern "src/*.cpp")
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if (CMAKE_VERSION VERSION_GREATER 3.12)
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list(INSERT contrib-pattern 0 CONFIGURE_DEPENDS)
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list(INSERT src-pattern 0 CONFIGURE_DEPENDS)
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endif()
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file(GLOB yaml-cpp-contrib-sources ${contrib-pattern})
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file(GLOB yaml-cpp-sources ${src-pattern})
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set(msvc-rt $<TARGET_PROPERTY:MSVC_RUNTIME_LIBRARY>)
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set(msvc-rt-mtd-static $<STREQUAL:${msvc-rt},MultiThreadedDebug>)
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set(msvc-rt-mt-static $<STREQUAL:${msvc-rt},MultiThreaded>)
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set(msvc-rt-mtd-dll $<STREQUAL:${msvc-rt},MultiThreadedDebugDLL>)
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set(msvc-rt-mt-dll $<STREQUAL:${msvc-rt},MultiThreadedDLL>)
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set(backport-msvc-runtime $<VERSION_LESS:${CMAKE_VERSION},3.15>)
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add_library(yaml-cpp ${yaml-cpp-type} "")
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add_library(yaml-cpp::yaml-cpp ALIAS yaml-cpp)
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set_property(TARGET yaml-cpp
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PROPERTY
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MSVC_RUNTIME_LIBRARY ${CMAKE_MSVC_RUNTIME_LIBRARY})
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set_property(TARGET yaml-cpp
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PROPERTY
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CXX_STANDARD_REQUIRED ON)
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if (NOT YAML_BUILD_SHARED_LIBS)
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set_property(TARGET yaml-cpp PROPERTY POSITION_INDEPENDENT_CODE ON)
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endif()
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target_include_directories(yaml-cpp
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PUBLIC
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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PRIVATE
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src>)
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if (NOT DEFINED CMAKE_CXX_STANDARD)
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set_target_properties(yaml-cpp
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PROPERTIES
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CXX_STANDARD 11)
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endif()
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if(YAML_CPP_MAIN_PROJECT)
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target_compile_options(yaml-cpp
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PRIVATE
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$<${not-msvc}:-Wall -Wextra -Wshadow -Weffc++ -Wno-long-long>
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$<${not-msvc}:-pedantic -pedantic-errors>)
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endif()
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target_compile_options(yaml-cpp
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PRIVATE
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$<$<AND:${backport-msvc-runtime},${msvc-rt-mtd-static}>:-MTd>
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$<$<AND:${backport-msvc-runtime},${msvc-rt-mt-static}>:-MT>
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$<$<AND:${backport-msvc-runtime},${msvc-rt-mtd-dll}>:-MDd>
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$<$<AND:${backport-msvc-runtime},${msvc-rt-mt-dll}>:-MD>
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# /wd4127 = disable warning C4127 "conditional expression is constant"
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# http://msdn.microsoft.com/en-us/library/6t66728h.aspx
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# /wd4355 = disable warning C4355 "'this' : used in base member initializer list
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# http://msdn.microsoft.com/en-us/library/3c594ae3.aspx
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$<$<CXX_COMPILER_ID:MSVC>:/W3 /wd4127 /wd4355>)
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target_compile_definitions(yaml-cpp
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PUBLIC
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$<$<NOT:$<BOOL:${YAML_BUILD_SHARED_LIBS}>>:YAML_CPP_STATIC_DEFINE>
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PRIVATE
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$<${build-windows-dll}:${PROJECT_NAME}_DLL>
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$<$<NOT:$<BOOL:${YAML_CPP_BUILD_CONTRIB}>>:YAML_CPP_NO_CONTRIB>)
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target_sources(yaml-cpp
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PRIVATE
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$<$<BOOL:${YAML_CPP_BUILD_CONTRIB}>:${yaml-cpp-contrib-sources}>
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${yaml-cpp-sources})
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if (NOT DEFINED CMAKE_DEBUG_POSTFIX)
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set(CMAKE_DEBUG_POSTFIX "d")
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endif()
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set_target_properties(yaml-cpp PROPERTIES
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VERSION "${PROJECT_VERSION}"
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SOVERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}"
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PROJECT_LABEL "yaml-cpp ${yaml-cpp-label-postfix}"
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DEBUG_POSTFIX "${CMAKE_DEBUG_POSTFIX}")
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set(EXPORT_TARGETS yaml-cpp::yaml-cpp)
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configure_package_config_file(
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"${PROJECT_SOURCE_DIR}/yaml-cpp-config.cmake.in"
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"${PROJECT_BINARY_DIR}/yaml-cpp-config.cmake"
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INSTALL_DESTINATION "${YAML_CPP_INSTALL_CMAKEDIR}"
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PATH_VARS CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR)
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unset(EXPORT_TARGETS)
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write_basic_package_version_file(
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"${PROJECT_BINARY_DIR}/yaml-cpp-config-version.cmake"
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COMPATIBILITY AnyNewerVersion)
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configure_file(yaml-cpp.pc.in yaml-cpp.pc @ONLY)
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if (YAML_CPP_INSTALL)
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install(TARGETS yaml-cpp
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EXPORT yaml-cpp-targets
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
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install(DIRECTORY ${PROJECT_SOURCE_DIR}/include/
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DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
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FILES_MATCHING PATTERN "*.h")
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install(EXPORT yaml-cpp-targets
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NAMESPACE yaml-cpp::
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DESTINATION "${YAML_CPP_INSTALL_CMAKEDIR}")
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install(FILES
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"${PROJECT_BINARY_DIR}/yaml-cpp-config.cmake"
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"${PROJECT_BINARY_DIR}/yaml-cpp-config-version.cmake"
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DESTINATION "${YAML_CPP_INSTALL_CMAKEDIR}")
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install(FILES "${PROJECT_BINARY_DIR}/yaml-cpp.pc"
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DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
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endif()
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if(YAML_CPP_BUILD_TESTS)
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add_subdirectory(test)
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endif()
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if(YAML_CPP_BUILD_TOOLS)
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add_subdirectory(util)
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endif()
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if (YAML_CPP_FORMAT_SOURCE AND YAML_CPP_CLANG_FORMAT_EXE)
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add_custom_target(format
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COMMAND clang-format --style=file -i $<TARGET_PROPERTY:yaml-cpp,SOURCES>
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COMMAND_EXPAND_LISTS
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COMMENT "Running clang-format"
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VERBATIM)
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endif()
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# uninstall target
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if(YAML_CPP_INSTALL AND NOT YAML_CPP_DISABLE_UNINSTALL AND NOT TARGET uninstall)
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configure_file(
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
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"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
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IMMEDIATE @ONLY)
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add_custom_target(uninstall
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COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
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endif()
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