protobuf-config-version.cmake.in 2.83 KB
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set(PACKAGE_VERSION "@protobuf_VERSION@")
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set(${PACKAGE_FIND_NAME}_VERSION_PRERELEASE "@protobuf_VERSION_PRERELEASE@" PARENT_SCOPE)

# Prerelease versions cannot be passed in directly via the find_package command,
# 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}" "")
else()
  set(PACKAGE_FIND_VERSION ${PACKAGE_FIND_VERSION}-${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE})
endif()
set(PACKAGE_FIND_VERSION_PRERELEASE "${${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)
  set(PACKAGE_VERSION_EXACT TRUE)
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
  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)
    # Do not match prerelease versions to non-prerelease version requests.
      if(NOT "@protobuf_VERSION_PRERELEASE@" STREQUAL "" AND PACKAGE_FIND_VERSION_PRERELEASE STREQUAL "")
      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.")
      set(PACKAGE_VERSION_COMPATIBLE FALSE)
    endif()

    # Not robustly SemVer compliant, but protobuf never uses '.' separated prerelease identifiers.
    if(PACKAGE_FIND_VERSION_PRERELEASE STRGREATER "@protobuf_VERSION_PRERELEASE@")
      set(PACKAGE_VERSION_COMPATIBLE FALSE)
    endif()
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  endif()
endif()

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# Check and save build options used to create this package
macro(_check_and_save_build_option OPTION VALUE)
  if(DEFINED ${PACKAGE_FIND_NAME}_${OPTION} AND
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    NOT ${PACKAGE_FIND_NAME}_${OPTION} STREQUAL ${VALUE})
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    set(PACKAGE_VERSION_UNSUITABLE TRUE)
  endif()
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  set(${PACKAGE_FIND_NAME}_${OPTION} ${VALUE} PARENT_SCOPE)
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endmacro()
_check_and_save_build_option(WITH_ZLIB @protobuf_WITH_ZLIB@)
_check_and_save_build_option(MSVC_STATIC_RUNTIME @protobuf_MSVC_STATIC_RUNTIME@)
_check_and_save_build_option(BUILD_SHARED_LIBS @protobuf_BUILD_SHARED_LIBS@)
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# if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
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if(CMAKE_SIZEOF_VOID_P AND "@CMAKE_SIZEOF_VOID_P@")
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  # check that the installed version has the same 32/64bit-ness as the one which is currently searching:
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  if(NOT CMAKE_SIZEOF_VOID_P EQUAL "@CMAKE_SIZEOF_VOID_P@")
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    math(EXPR installedBits "@CMAKE_SIZEOF_VOID_P@ * 8")
    set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
    set(PACKAGE_VERSION_UNSUITABLE TRUE)
  endif()
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endif()
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