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214 lines
8.5 KiB
CMake
214 lines
8.5 KiB
CMake
# vim: et ts=4 sts=4 sw=4 tw=0
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# ==== Define cmake build policies that affect compilation and linkage default behaviors
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#
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# Set the JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION string to the newest cmake version
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# policies that provide successful builds. By setting JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION
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# to a value greater than the oldest policies, all policies between
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# JSONCPP_OLDEST_VALIDATED_POLICIES_VERSION and CMAKE_VERSION (used for this build)
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# are set to their NEW behaivor, thereby suppressing policy warnings related to policies
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# between the JSONCPP_OLDEST_VALIDATED_POLICIES_VERSION and CMAKE_VERSION.
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#
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# CMake versions greater than the JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION policies will
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# continue to generate policy warnings "CMake Warning (dev)...Policy CMP0XXX is not set:"
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#
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set(JSONCPP_OLDEST_VALIDATED_POLICIES_VERSION "3.8.0")
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set(JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION "3.13.2")
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cmake_minimum_required(VERSION ${JSONCPP_OLDEST_VALIDATED_POLICIES_VERSION})
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if("${CMAKE_VERSION}" VERSION_LESS "${JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION}")
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#Set and use the newest available cmake policies that are validated to work
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set(JSONCPP_CMAKE_POLICY_VERSION "${CMAKE_VERSION}")
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else()
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set(JSONCPP_CMAKE_POLICY_VERSION "${JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION}")
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endif()
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cmake_policy(VERSION ${JSONCPP_CMAKE_POLICY_VERSION})
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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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#
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# Now enumerate specific policies newer than JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION
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# that may need to be individually set to NEW/OLD
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#
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foreach(pnew "") # Currently Empty
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if(POLICY ${pnew})
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cmake_policy(SET ${pnew} NEW)
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endif()
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endforeach()
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foreach(pold "") # Currently Empty
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if(POLICY ${pold})
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cmake_policy(SET ${pold} OLD)
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endif()
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endforeach()
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# Build the library with C++11 standard support, independent from other including
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# software which may use a different CXX_STANDARD or CMAKE_CXX_STANDARD.
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set(CMAKE_CXX_STANDARD 11)
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set(CMAKE_CXX_EXTENSIONS OFF)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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# Ensure that CMAKE_BUILD_TYPE has a value specified for single configuration generators.
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if(NOT DEFINED CMAKE_BUILD_TYPE AND NOT DEFINED CMAKE_CONFIGURATION_TYPES)
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set(CMAKE_BUILD_TYPE Release CACHE STRING
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"Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel Coverage.")
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endif()
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set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
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# ---------------------------------------------------------------------------
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# use ccache if found, has to be done before project()
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# ---------------------------------------------------------------------------
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find_program(CCACHE_EXECUTABLE "ccache" HINTS /usr/local/bin /opt/local/bin)
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if(CCACHE_EXECUTABLE)
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message(STATUS "use ccache")
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set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_EXECUTABLE}" CACHE PATH "ccache" FORCE)
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set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_EXECUTABLE}" CACHE PATH "ccache" FORCE)
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endif()
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project(jsoncpp
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# Note: version must be updated in three places when doing a release. This
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# annoying process ensures that amalgamate, CMake, and meson all report the
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# correct version.
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# 1. ./meson.build
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# 2. ./include/json/version.h
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# 3. ./CMakeLists.txt
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# IMPORTANT: also update the PROJECT_SOVERSION!!
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VERSION 1.9.5 # <major>[.<minor>[.<patch>[.<tweak>]]]
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LANGUAGES CXX)
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message(STATUS "JsonCpp Version: ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")
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set(PROJECT_SOVERSION 25)
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include(${CMAKE_CURRENT_SOURCE_DIR}/include/PreventInSourceBuilds.cmake)
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include(${CMAKE_CURRENT_SOURCE_DIR}/include/PreventInBuildInstalls.cmake)
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option(JSONCPP_WITH_TESTS "Compile and (for jsoncpp_check) run JsonCpp test executables" ON)
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option(JSONCPP_WITH_POST_BUILD_UNITTEST "Automatically run unit-tests as a post build step" ON)
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option(JSONCPP_WITH_WARNING_AS_ERROR "Force compilation to fail if a warning occurs" OFF)
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option(JSONCPP_WITH_STRICT_ISO "Issue all the warnings demanded by strict ISO C and ISO C++" ON)
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option(JSONCPP_WITH_PKGCONFIG_SUPPORT "Generate and install .pc files" ON)
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option(JSONCPP_WITH_CMAKE_PACKAGE "Generate and install cmake package files" ON)
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option(JSONCPP_WITH_EXAMPLE "Compile JsonCpp example" OFF)
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option(JSONCPP_STATIC_WINDOWS_RUNTIME "Use static (MT/MTd) Windows runtime" OFF)
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option(BUILD_SHARED_LIBS "Build jsoncpp_lib as a shared library." ON)
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option(BUILD_STATIC_LIBS "Build jsoncpp_lib as a static library." ON)
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option(BUILD_OBJECT_LIBS "Build jsoncpp_lib as a object library." ON)
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# Adhere to GNU filesystem layout conventions
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include(GNUInstallDirs)
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set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib" CACHE PATH "Archive output dir.")
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set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib" CACHE PATH "Library output dir.")
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set(CMAKE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin" CACHE PATH "PDB (MSVC debug symbol)output dir.")
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin" CACHE PATH "Executable/dll output dir.")
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set(JSONCPP_USE_SECURE_MEMORY "0" CACHE STRING "-D...=1 to use memory-wiping allocator for STL")
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configure_file("${PROJECT_SOURCE_DIR}/version.in"
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"${PROJECT_BINARY_DIR}/version"
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NEWLINE_STYLE UNIX)
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macro(use_compilation_warning_as_error)
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if(MSVC)
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# Only enabled in debug because some old versions of VS STL generate
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# warnings when compiled in release configuration.
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add_compile_options($<$<CONFIG:Debug>:/WX>)
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elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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add_compile_options(-Werror)
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if(JSONCPP_WITH_STRICT_ISO)
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add_compile_options(-pedantic-errors)
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endif()
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endif()
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endmacro()
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# Include our configuration header
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include_directories(${jsoncpp_SOURCE_DIR}/include)
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if(MSVC)
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# Only enabled in debug because some old versions of VS STL generate
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# unreachable code warning when compiled in release configuration.
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add_compile_options($<$<CONFIG:Debug>:/W4>)
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if (JSONCPP_STATIC_WINDOWS_RUNTIME)
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set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
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endif()
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endif()
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if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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# using regular Clang or AppleClang
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add_compile_options(-Wall -Wconversion -Wshadow)
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if(JSONCPP_WITH_WARNING_AS_ERROR)
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add_compile_options(-Werror=conversion -Werror=sign-compare)
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endif()
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elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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# using GCC
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add_compile_options(-Wall -Wconversion -Wshadow -Wextra)
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# not yet ready for -Wsign-conversion
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if(JSONCPP_WITH_STRICT_ISO)
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add_compile_options(-Wpedantic)
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endif()
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if(JSONCPP_WITH_WARNING_AS_ERROR)
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add_compile_options(-Werror=conversion)
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endif()
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elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
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# using Intel compiler
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add_compile_options(-Wall -Wconversion -Wshadow -Wextra)
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if(JSONCPP_WITH_WARNING_AS_ERROR)
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add_compile_options(-Werror=conversion)
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elseif(JSONCPP_WITH_STRICT_ISO)
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add_compile_options(-Wpedantic)
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endif()
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endif()
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if(JSONCPP_WITH_WARNING_AS_ERROR)
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use_compilation_warning_as_error()
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endif()
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if(JSONCPP_WITH_PKGCONFIG_SUPPORT)
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include(JoinPaths)
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join_paths(libdir_for_pc_file "\${exec_prefix}" "${CMAKE_INSTALL_LIBDIR}")
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join_paths(includedir_for_pc_file "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
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configure_file(
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"pkg-config/jsoncpp.pc.in"
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"pkg-config/jsoncpp.pc"
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@ONLY)
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install(FILES "${CMAKE_CURRENT_BINARY_DIR}/pkg-config/jsoncpp.pc"
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DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
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endif()
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if(JSONCPP_WITH_CMAKE_PACKAGE)
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include(CMakePackageConfigHelpers)
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install(EXPORT jsoncpp
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DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/jsoncpp
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FILE jsoncpp-targets.cmake)
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configure_package_config_file(jsoncppConfig.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/jsoncppConfig.cmake
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INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/jsoncpp)
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write_basic_package_version_file("${CMAKE_CURRENT_BINARY_DIR}/jsoncppConfigVersion.cmake"
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VERSION ${PROJECT_VERSION}
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COMPATIBILITY SameMajorVersion)
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install(FILES
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${CMAKE_CURRENT_BINARY_DIR}/jsoncppConfigVersion.cmake ${CMAKE_CURRENT_BINARY_DIR}/jsoncppConfig.cmake
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${CMAKE_CURRENT_SOURCE_DIR}/jsoncpp-namespaced-targets.cmake
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DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/jsoncpp)
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endif()
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if(JSONCPP_WITH_TESTS)
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enable_testing()
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include(CTest)
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endif()
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# Build the different applications
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add_subdirectory(src)
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#install the includes
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add_subdirectory(include)
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#install the example
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if(JSONCPP_WITH_EXAMPLE)
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add_subdirectory(example)
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endif()
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