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      1 set(PACKAGE_VERSION "@protobuf_VERSION@")
      2 set(${PACKAGE_FIND_NAME}_VERSION_PRERELEASE "@protobuf_VERSION_PRERELEASE@" PARENT_SCOPE)
      3 
      4 # Prerelease versions cannot be passed in directly via the find_package command,
      5 # so we allow users to specify it in a variable
      6 if(NOT DEFINED "${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE")
      7   set("${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE}" "")
      8 else()
      9   set(PACKAGE_FIND_VERSION ${PACKAGE_FIND_VERSION}-${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE})
     10 endif()
     11 set(PACKAGE_FIND_VERSION_PRERELEASE "${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE}")
     12 
     13 # VERSION_EQUAL ignores the prerelease strings, so we use STREQUAL.
     14 if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
     15   set(PACKAGE_VERSION_EXACT TRUE)
     16 endif()
     17 
     18 set(PACKAGE_VERSION_COMPATIBLE TRUE) #Assume true until shown otherwise
     19 
     20 if(NOT PACKAGE_FIND_VERSION_MAJOR EQUAL "@protobuf_VERSION_MAJOR@")
     21   set(PACKAGE_VERSION_COMPATIBLE FALSE)
     22 elseif(PACKAGE_FIND_VERSION VERSION_GREATER PACKAGE_VERSION)
     23   set(PACKAGE_VERSION_COMPATIBLE FALSE)
     24 elseif(PACKAGE_FIND_VERSION VERSION_EQUAL PACKAGE_VERSION)
     25   # Do not match prerelease versions to non-prerelease version requests.
     26   if(NOT "@protobuf_VERSION_PRERELEASE@" STREQUAL "" AND PACKAGE_FIND_VERSION_PRERELEASE STREQUAL "")
     27     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.")
     28     set(PACKAGE_VERSION_COMPATIBLE FALSE)
     29   endif()
     30 
     31   # Not robustly SemVer compliant, but protobuf never uses '.' separated prerelease identifiers.
     32   if(PACKAGE_FIND_VERSION_PRERELEASE STRGREATER "@protobuf_VERSION_PRERELEASE@")
     33     set(PACKAGE_VERSION_COMPATIBLE FALSE)
     34   endif()
     35 endif()
     36 
     37 # Check and save build options used to create this package
     38 macro(_check_and_save_build_option OPTION VALUE)
     39   if(DEFINED ${PACKAGE_FIND_NAME}_${OPTION} AND
     40     NOT ${PACKAGE_FIND_NAME}_${OPTION} EQUAL VALUE)
     41     set(PACKAGE_VERSION_UNSUITABLE TRUE)
     42   endif()
     43   set(${PACKAGE_FIND_NAME}_${OPTION} ${VALUE})
     44 endmacro()
     45 _check_and_save_build_option(WITH_ZLIB @protobuf_WITH_ZLIB@)
     46 _check_and_save_build_option(MSVC_STATIC_RUNTIME @protobuf_MSVC_STATIC_RUNTIME@)
     47 _check_and_save_build_option(BUILD_SHARED_LIBS @protobuf_BUILD_SHARED_LIBS@)
     48 
     49 # if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
     50 if(NOT "${CMAKE_SIZEOF_VOID_P}" STREQUAL "" AND NOT "@CMAKE_SIZEOF_VOID_P@" STREQUAL "")
     51   # check that the installed version has the same 32/64bit-ness as the one which is currently searching:
     52   if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "@CMAKE_SIZEOF_VOID_P@")
     53     math(EXPR installedBits "@CMAKE_SIZEOF_VOID_P@ * 8")
     54     set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
     55     set(PACKAGE_VERSION_UNSUITABLE TRUE)
     56   endif()
     57 endif()
     58 
     59