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b382866536645466f280ee658d9b4fd1be959b35
gnss-sdr/cmake/Modules/BuildProtobuf.cmake
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Carles Fernandez b382866536 CMake: improve BuildProtobuf module
2026-05-10 08:47:47 +02:00

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# GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
# This file is part of GNSS-SDR.
#
# SPDX-FileCopyrightText: 2023-2026 C. Fernandez-Prades cfernandez(at)cttc.es
# SPDX-License-Identifier: BSD-3-Clause
# Downloads and builds the protoc compiler and static libraries of Protocol
# Buffers >= v22.0 (see https://protobuf.dev/) It requires CMake >= 3.10 and the
# abseil-cpp >= 20230117 libraries (see https://github.com/abseil/abseil-cpp)
# already installed. Zlib is used if found.
#
# Creates protobuf::libprotobuf and protobuf::protoc imported targets.
if(NOT COMMAND set_package_properties)
include(FeatureSummary)
endif()
if(NOT COMMAND ExternalProject_Add)
include(ExternalProject)
endif()
include(GNUInstallDirs)
if(CMAKE_VERSION VERSION_LESS "3.10")
message(FATAL_ERROR
"Building bundled Protocol Buffers requires CMake >= 3.10. "
"Use a system Protobuf package with this CMake version."
)
endif()
if(NOT GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION)
set(GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION "22.0")
endif()
if((NOT GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION VERSION_LESS "30.0") AND
CMAKE_VERSION VERSION_LESS "3.16")
message(FATAL_ERROR
"Building bundled Protocol Buffers ${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION} "
"requires CMake >= 3.16. Use a system Protobuf package, or select "
"an older bundled Protobuf version."
)
endif()
if(NOT GNSSSDR_BINARY_DIR)
set(GNSSSDR_BINARY_DIR "${PROJECT_BINARY_DIR}")
endif()
if(NOT ZLIB_FOUND)
find_package(ZLIB)
set_package_properties(ZLIB PROPERTIES
URL "https://www.zlib.net/"
PURPOSE "Enables gzip stream support in Protocol Buffers."
TYPE RECOMMENDED
)
if(ZLIB_FOUND AND ZLIB_VERSION_STRING)
set_package_properties(ZLIB PROPERTIES
DESCRIPTION "A Massively Spiffy Yet Delicately Unobtrusive Compression Library (found: v${ZLIB_VERSION_STRING})"
)
else()
set_package_properties(ZLIB PROPERTIES
DESCRIPTION "A Massively Spiffy Yet Delicately Unobtrusive Compression Library"
)
endif()
if(ZLIB_FOUND)
set(ZLIB_LIBRARIES_ ${ZLIB_LIBRARIES})
set(USE_ZLIB_ -Dprotobuf_WITH_ZLIB=ON)
else()
set(ZLIB_LIBRARIES_ "")
set(USE_ZLIB_ -Dprotobuf_WITH_ZLIB=OFF)
endif()
else()
set(ZLIB_LIBRARIES_ ${ZLIB_LIBRARIES})
set(USE_ZLIB_ -Dprotobuf_WITH_ZLIB=ON)
endif()
set(UTF8_LIBRARIES
${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}/${CMAKE_INSTALL_LIBDIR}/${CMAKE_STATIC_LIBRARY_PREFIX}utf8_validity${CMAKE_STATIC_LIBRARY_SUFFIX}
${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}/${CMAKE_INSTALL_LIBDIR}/${CMAKE_STATIC_LIBRARY_PREFIX}utf8_range${CMAKE_STATIC_LIBRARY_SUFFIX}
)
set(ABSL_DIR_OPTION_ "")
if(DEFINED absl_DIR)
set(ABSL_DIR_OPTION_ "-Dabsl_DIR=${absl_DIR}")
endif()
# Protobuf < 30.0 uses the protobuf_ABSL_PROVIDER option. For newer
# releases, request local dependencies only so the external build uses the
# dependencies already found or installed by the main project.
set(GNSSSDR_ABSL_PROVIDER_ "")
if(GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION VERSION_LESS "30.0")
set(GNSSSDR_ABSL_PROVIDER_ "-Dprotobuf_ABSL_PROVIDER=package")
else()
set(GNSSSDR_ABSL_PROVIDER_ "-Dprotobuf_LOCAL_DEPENDENCIES_ONLY=ON")
endif()
if(NOT DEFINED PROTOBUF_PATCH_COMMAND)
set(PROTOBUF_PATCH_COMMAND "")
endif()
set(PROTOBUF_CXX_STANDARD_ "14")
if(NOT GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION VERSION_LESS "30.0")
set(PROTOBUF_CXX_STANDARD_ "17")
endif()
set(PROTOBUF_LIBPROTOBUF_
${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}/${CMAKE_INSTALL_LIBDIR}/${CMAKE_STATIC_LIBRARY_PREFIX}protobuf${CMAKE_STATIC_LIBRARY_SUFFIX}
)
set(PROTOBUF_LIBPROTOBUF_DEBUG_
${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}/${CMAKE_INSTALL_LIBDIR}/${CMAKE_STATIC_LIBRARY_PREFIX}protobufd${CMAKE_STATIC_LIBRARY_SUFFIX}
)
set(PROTOBUF_PROTOC_EXECUTABLE_
${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}/bin/protoc${CMAKE_EXECUTABLE_SUFFIX}
)
set(PROTOBUF_BUILD_BYPRODUCTS_
${PROTOBUF_PROTOC_EXECUTABLE_}
${UTF8_LIBRARIES}
)
if(CMAKE_CONFIGURATION_TYPES)
list(APPEND PROTOBUF_BUILD_BYPRODUCTS_
${PROTOBUF_LIBPROTOBUF_}
${PROTOBUF_LIBPROTOBUF_DEBUG_}
)
elseif(CMAKE_BUILD_TYPE MATCHES "^(Debug|NoOptWithASM|Coverage|ASAN)$")
list(APPEND PROTOBUF_BUILD_BYPRODUCTS_
${PROTOBUF_LIBPROTOBUF_DEBUG_}
)
else()
list(APPEND PROTOBUF_BUILD_BYPRODUCTS_
${PROTOBUF_LIBPROTOBUF_}
)
endif()
set(CMAKE_PREFIX_PATH_OPTION_ "")
if(CMAKE_PREFIX_PATH)
string(REPLACE ";" "|" CMAKE_PREFIX_PATH_EXTERNAL_ "${CMAKE_PREFIX_PATH}")
set(CMAKE_PREFIX_PATH_OPTION_
"-DCMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH_EXTERNAL_}"
)
endif()
ExternalProject_Add(protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}
PREFIX ${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}
GIT_REPOSITORY https://github.com/protocolbuffers/protobuf
GIT_TAG v${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}
GIT_PROGRESS ON
UPDATE_COMMAND ""
PATCH_COMMAND ${PROTOBUF_PATCH_COMMAND}
SOURCE_DIR ${GNSSSDR_BINARY_DIR}/thirdparty/protobuf/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}
BINARY_DIR ${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}
LIST_SEPARATOR |
CMAKE_ARGS
-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
-DCMAKE_CXX_STANDARD=${PROTOBUF_CXX_STANDARD_}
-DCMAKE_CXX_STANDARD_REQUIRED=ON
-DCMAKE_CXX_EXTENSIONS=OFF
${CMAKE_PREFIX_PATH_OPTION_}
-DBUILD_SHARED_LIBS=OFF
-DCMAKE_BUILD_TYPE=$<$<CONFIG:Debug>:Debug>$<$<CONFIG:Release>:Release>$<$<CONFIG:RelWithDebInfo>:RelWithDebInfo>$<$<CONFIG:MinSizeRel>:MinSizeRel>$<$<CONFIG:NoOptWithASM>:Debug>$<$<CONFIG:Coverage>:Debug>$<$<CONFIG:O2WithASM>:RelWithDebInfo>$<$<CONFIG:O3WithASM>:RelWithDebInfo>$<$<CONFIG:ASAN>:Debug>
-DCMAKE_CXX_VISIBILITY_PRESET=hidden
-DCMAKE_VISIBILITY_INLINES_HIDDEN=1
-DCMAKE_INSTALL_PREFIX=${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}
"-DCMAKE_INSTALL_LIBDIR:PATH=${CMAKE_INSTALL_LIBDIR}"
-Dprotobuf_BUILD_TESTS=OFF
${ABSL_DIR_OPTION_}
${GNSSSDR_ABSL_PROVIDER_}
${USE_ZLIB_}
BUILD_COMMAND ${CMAKE_COMMAND}
"--build" "${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}"
"--config" $<$<CONFIG:Debug>:Debug>$<$<CONFIG:Release>:Release>$<$<CONFIG:RelWithDebInfo>:RelWithDebInfo>$<$<CONFIG:MinSizeRel>:MinSizeRel>$<$<CONFIG:NoOptWithASM>:Debug>$<$<CONFIG:Coverage>:Debug>$<$<CONFIG:O2WithASM>:RelWithDebInfo>$<$<CONFIG:O3WithASM>:RelWithDebInfo>$<$<CONFIG:ASAN>:Debug>
"--target" install
BUILD_BYPRODUCTS ${PROTOBUF_BUILD_BYPRODUCTS_}
INSTALL_COMMAND ""
)
file(MAKE_DIRECTORY ${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}/include)
file(MAKE_DIRECTORY ${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}/${CMAKE_INSTALL_LIBDIR})
set(PROTOBUF_EXTRA_LIBRARIES_ "")
if("${CMAKE_SYSTEM_NAME}" MATCHES "Darwin")
find_library(GNSSSDR_COREFOUNDATION_LIBRARY CoreFoundation)
if(GNSSSDR_COREFOUNDATION_LIBRARY)
list(APPEND PROTOBUF_EXTRA_LIBRARIES_
${GNSSSDR_COREFOUNDATION_LIBRARY}
)
endif()
endif()
set(PROTOBUF_ABSL_USED_TARGETS
absl::absl_check
absl::absl_log
absl::algorithm
absl::base
absl::bind_front
absl::bits
absl::btree
absl::cleanup
absl::cord
absl::core_headers
absl::debugging
absl::die_if_null
absl::dynamic_annotations
absl::flags
absl::flat_hash_map
absl::flat_hash_set
absl::function_ref
absl::hash
absl::layout
absl::log_initialize
absl::log_severity
absl::memory
absl::node_hash_map
absl::node_hash_set
absl::optional
absl::span
absl::status
absl::statusor
absl::strings
absl::synchronization
absl::time
absl::type_traits
absl::utility
absl::variant
)
if(GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION VERSION_LESS "30.0")
foreach(_gnsssdr_absl_target ${PROTOBUF_ABSL_USED_TARGETS})
if(NOT TARGET ${_gnsssdr_absl_target})
message(FATAL_ERROR
"Required Abseil target ${_gnsssdr_absl_target} was not found. "
"Install a compatible abseil-cpp package before building bundled "
"Protocol Buffers ${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}."
)
endif()
endforeach()
unset(_gnsssdr_absl_target)
endif()
if(NOT TARGET protobuf::libprotobuf)
add_library(protobuf::libprotobuf STATIC IMPORTED)
add_dependencies(protobuf::libprotobuf protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION})
set_target_properties(protobuf::libprotobuf PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_CONFIGURATIONS "None;Debug;Release;RelWithDebInfo;MinSizeRel"
MAP_IMPORTED_CONFIG_NOOPTWITHASM Debug
MAP_IMPORTED_CONFIG_COVERAGE Debug
MAP_IMPORTED_CONFIG_O2WITHASM RelWithDebInfo
MAP_IMPORTED_CONFIG_O3WITHASM RelWithDebInfo
MAP_IMPORTED_CONFIG_ASAN Debug
IMPORTED_LOCATION ${PROTOBUF_LIBPROTOBUF_}
IMPORTED_LOCATION_NONE ${PROTOBUF_LIBPROTOBUF_}
IMPORTED_LOCATION_DEBUG ${PROTOBUF_LIBPROTOBUF_DEBUG_}
IMPORTED_LOCATION_RELEASE ${PROTOBUF_LIBPROTOBUF_}
IMPORTED_LOCATION_RELWITHDEBINFO ${PROTOBUF_LIBPROTOBUF_}
IMPORTED_LOCATION_MINSIZEREL ${PROTOBUF_LIBPROTOBUF_}
INTERFACE_INCLUDE_DIRECTORIES ${GNSSSDR_BINARY_DIR}/protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION}/include
INTERFACE_LINK_LIBRARIES "${ZLIB_LIBRARIES_};${PROTOBUF_EXTRA_LIBRARIES_};${UTF8_LIBRARIES};${PROTOBUF_ABSL_USED_TARGETS}"
)
endif()
if(NOT TARGET protobuf::protoc)
add_executable(protobuf::protoc IMPORTED)
add_dependencies(protobuf::protoc protobuf-${GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION})
set(Protobuf_PROTOC_EXECUTABLE "${PROTOBUF_PROTOC_EXECUTABLE_}")
set(PROTOBUF_PROTOC_EXECUTABLE "${PROTOBUF_PROTOC_EXECUTABLE_}")
set_target_properties(protobuf::protoc PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
MAP_IMPORTED_CONFIG_NOOPTWITHASM Debug
MAP_IMPORTED_CONFIG_COVERAGE Debug
MAP_IMPORTED_CONFIG_O2WITHASM RelWithDebInfo
MAP_IMPORTED_CONFIG_O3WITHASM RelWithDebInfo
MAP_IMPORTED_CONFIG_ASAN Debug
IMPORTED_LOCATION ${PROTOBUF_PROTOC_EXECUTABLE_}
)
endif()
unset(GNSSSDR_ABSL_PROVIDER_)
unset(USE_ZLIB_)
unset(ZLIB_LIBRARIES_)
unset(ABSL_DIR_OPTION_)
unset(PROTOBUF_EXTRA_LIBRARIES_)
unset(PROTOBUF_CXX_STANDARD_)
unset(PROTOBUF_LIBPROTOBUF_)
unset(PROTOBUF_LIBPROTOBUF_DEBUG_)
unset(PROTOBUF_PROTOC_EXECUTABLE_)
unset(PROTOBUF_BUILD_BYPRODUCTS_)
unset(CMAKE_PREFIX_PATH_OPTION_)
if(DEFINED CMAKE_PREFIX_PATH_EXTERNAL_)
unset(CMAKE_PREFIX_PATH_EXTERNAL_)
endif()
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