mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
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73 lines
2.3 KiB
73 lines
2.3 KiB
# If protobuf is found - libprotobuf target is available |
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set(HAVE_PROTOBUF FALSE) |
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if(NOT WITH_PROTOBUF) |
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return() |
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endif() |
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ocv_option(BUILD_PROTOBUF "Force to build libprotobuf from sources" ON) |
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ocv_option(PROTOBUF_UPDATE_FILES "Force rebuilding .proto files (protoc should be available)" OFF) |
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function(get_protobuf_version version include) |
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file(STRINGS "${include}/google/protobuf/stubs/common.h" ver REGEX "#define GOOGLE_PROTOBUF_VERSION [0-9]+") |
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string(REGEX MATCHALL "[0-9]+" ver ${ver}) |
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math(EXPR major "${ver} / 1000000") |
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math(EXPR minor "${ver} / 1000 % 1000") |
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math(EXPR patch "${ver} % 1000") |
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set(${version} "${major}.${minor}.${patch}" PARENT_SCOPE) |
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endfunction() |
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if(BUILD_PROTOBUF) |
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add_subdirectory("${OpenCV_SOURCE_DIR}/3rdparty/protobuf") |
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set(HAVE_PROTOBUF TRUE) |
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else() |
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unset(Protobuf_VERSION CACHE) |
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find_package(Protobuf QUIET) |
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# Backwards compatibility |
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# Define camel case versions of input variables |
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foreach(UPPER |
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PROTOBUF_FOUND |
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PROTOBUF_LIBRARY |
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PROTOBUF_INCLUDE_DIR |
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PROTOBUF_VERSION |
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) |
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if (DEFINED ${UPPER}) |
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string(REPLACE "PROTOBUF_" "Protobuf_" Camel ${UPPER}) |
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if (NOT DEFINED ${Camel}) |
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set(${Camel} ${${UPPER}}) |
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endif() |
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endif() |
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endforeach() |
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# end of compatibility block |
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if(Protobuf_FOUND) |
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if(TARGET protobuf::libprotobuf) |
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add_library(libprotobuf INTERFACE) |
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target_link_libraries(libprotobuf INTERFACE protobuf::libprotobuf) |
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else() |
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add_library(libprotobuf UNKNOWN IMPORTED) |
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set_target_properties(libprotobuf PROPERTIES |
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IMPORTED_LOCATION "${Protobuf_LIBRARY}" |
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INTERFACE_INCLUDE_SYSTEM_DIRECTORIES "${Protobuf_INCLUDE_DIR}" |
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) |
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get_protobuf_version(Protobuf_VERSION "${Protobuf_INCLUDE_DIR}") |
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endif() |
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set(HAVE_PROTOBUF TRUE) |
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endif() |
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endif() |
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if(HAVE_PROTOBUF AND PROTOBUF_UPDATE_FILES AND NOT COMMAND PROTOBUF_GENERATE_CPP) |
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find_package(Protobuf QUIET) |
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if(NOT COMMAND PROTOBUF_GENERATE_CPP) |
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message(FATAL_ERROR "PROTOBUF_GENERATE_CPP command is not available") |
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endif() |
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endif() |
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if(HAVE_PROTOBUF) |
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list(APPEND CUSTOM_STATUS protobuf) |
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list(APPEND CUSTOM_STATUS_protobuf " Protobuf:" |
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BUILD_PROTOBUF THEN "build (${Protobuf_VERSION})" |
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ELSE "${Protobuf_LIBRARY} (${Protobuf_VERSION})") |
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endif()
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