Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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61 lines
2.8 KiB
61 lines
2.8 KiB
5 years ago
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set(PACKAGE_VERSION "@protobuf_VERSION@")
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set(${PACKAGE_FIND_NAME}_VERSION_PRERELEASE "@protobuf_VERSION_PRERELEASE@" PARENT_SCOPE)
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# Prerelease versions cannot be passed in directly via the find_package command,
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# so we allow users to specify it in a variable
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if(NOT DEFINED "${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE")
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set("${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE}" "")
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else()
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set(PACKAGE_FIND_VERSION ${PACKAGE_FIND_VERSION}-${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE})
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endif()
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set(PACKAGE_FIND_VERSION_PRERELEASE "${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE}")
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# VERSION_EQUAL ignores the prerelease strings, so we use STREQUAL.
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if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
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set(PACKAGE_VERSION_EXACT TRUE)
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endif()
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set(PACKAGE_VERSION_COMPATIBLE TRUE) #Assume true until shown otherwise
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if(PACKAGE_FIND_VERSION) #Only perform version checks if one is given
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if(NOT PACKAGE_FIND_VERSION_MAJOR EQUAL "@protobuf_VERSION_MAJOR@")
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set(PACKAGE_VERSION_COMPATIBLE FALSE)
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elseif(PACKAGE_FIND_VERSION VERSION_GREATER PACKAGE_VERSION)
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set(PACKAGE_VERSION_COMPATIBLE FALSE)
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elseif(PACKAGE_FIND_VERSION VERSION_EQUAL PACKAGE_VERSION)
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# Do not match prerelease versions to non-prerelease version requests.
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if(NOT "@protobuf_VERSION_PRERELEASE@" STREQUAL "" AND PACKAGE_FIND_VERSION_PRERELEASE STREQUAL "")
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message(AUTHOR_WARNING "To use this prerelease version of ${PACKAGE_FIND_NAME}, set ${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE to '@protobuf_VERSION_PRERELEASE@' or greater.")
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set(PACKAGE_VERSION_COMPATIBLE FALSE)
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endif()
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# Not robustly SemVer compliant, but protobuf never uses '.' separated prerelease identifiers.
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if(PACKAGE_FIND_VERSION_PRERELEASE STRGREATER "@protobuf_VERSION_PRERELEASE@")
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set(PACKAGE_VERSION_COMPATIBLE FALSE)
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endif()
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endif()
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endif()
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# Check and save build options used to create this package
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macro(_check_and_save_build_option OPTION VALUE)
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if(DEFINED ${PACKAGE_FIND_NAME}_${OPTION} AND
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NOT ${PACKAGE_FIND_NAME}_${OPTION} STREQUAL ${VALUE})
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set(PACKAGE_VERSION_UNSUITABLE TRUE)
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endif()
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set(${PACKAGE_FIND_NAME}_${OPTION} ${VALUE} PARENT_SCOPE)
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endmacro()
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_check_and_save_build_option(WITH_ZLIB @protobuf_WITH_ZLIB@)
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_check_and_save_build_option(MSVC_STATIC_RUNTIME @protobuf_MSVC_STATIC_RUNTIME@)
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_check_and_save_build_option(BUILD_SHARED_LIBS @protobuf_BUILD_SHARED_LIBS@)
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# if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
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if(CMAKE_SIZEOF_VOID_P AND "@CMAKE_SIZEOF_VOID_P@")
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# check that the installed version has the same 32/64bit-ness as the one which is currently searching:
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if(NOT CMAKE_SIZEOF_VOID_P EQUAL "@CMAKE_SIZEOF_VOID_P@")
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math(EXPR installedBits "@CMAKE_SIZEOF_VOID_P@ * 8")
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set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
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set(PACKAGE_VERSION_UNSUITABLE TRUE)
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endif()
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endif()
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