Right, what a stupid error, thanks for spotting this.
On Tuesday, April 25, 2023 at 5:36:55 PM UTC+2 Adam Cozzette wrote:
> I think the include directory
> ${Protobuf_SOURCE_DIR}/third_party/abseil-cpp/absl should be just
> ${Protobuf_SOURCE_DIR}/third_party/abseil-cpp.
>
> On Tue, Apr 25, 2023 at 3:48 AM 'Gabriele Baldoni' via Protocol Buffers <
> [email protected]> wrote:
>
>> Hi all,
>>
>> I'm experiencing some issue when trying to use protobuf within CMake with
>> fetch content when building/generating.
>>
>> I got this error:
>> /root/example/car-pub/build/_deps/protobuf-src/src/google/protobuf/stubs/common.h:44:10:
>>
>> fatal error: absl/strings/string_view.h: No such file or directory
>> 44 | #include "absl/strings/string_view.h"
>> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> Here my CMakeLists.txt
>> cmake_minimum_required(VERSION 3.20)
>> include(FetchContent)
>>
>> set(CMAKE_BUILD_TYPE Debug)
>>
>> project(
>> car-pub
>> LANGUAGES C CXX)
>>
>>
>> # set(PROTOC protoc)
>> set(CMAKE_CXX_STANDARD 17)
>>
>> FetchContent_Declare(
>> argparse
>> GIT_REPOSITORY https://github.com/p-ranav/argparse.git
>> )
>> FetchContent_MakeAvailable(argparse)
>>
>> FetchContent_Declare(
>> Protobuf
>> GIT_REPOSITORY https://github.com/protocolbuffers/protobuf
>> GIT_TAG v22.0
>> )
>> FetchContent_MakeAvailable(Protobuf)
>> FetchContent_GetProperties(Protobuf SOURCE_DIR Protobuf_SOURCE_DIR)
>> FetchContent_GetProperties(Protobuf INCLUDE_DIRS Protobuf_INCLUDE_DIRS)
>> include(${Protobuf_SOURCE_DIR}/cmake/protobuf-generate.cmake)
>>
>> include_directories(
>> ${Protobuf_SOURCE_DIR}/src
>> ${Protobuf_SOURCE_DIR}/third_party/abseil-cpp/absl
>> ${Protobuf_SOURCE_DIR}/third_party/googletest/googletest/include
>> ${Protobuf_SOURCE_DIR}/third_party/googletest/googlemock/include
>> ${Protobuf_SOURCE_DIR}/third_party/jsoncpp/include
>> )
>>
>> add_library(vss
>> OBJECT
>> ${CMAKE_SOURCE_DIR}/proto/vss_rel_4.0-develop.proto
>> )
>> target_link_libraries(vss PRIVATE Protobuf)
>>
>> target_include_directories(
>> vss PUBLIC
>> $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/proto>
>> $<INSTALL_INTERFACE:include>
>> ${INCLUDE_DIRECTORIES}
>> )
>> file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/proto)
>> protobuf_generate(
>> TARGET vss
>> LANGUAGE cpp
>> IMPORT_DIRS ${CMAKE_SOURCE_DIR}/proto
>> PROTOC_OUT_DIR ${CMAKE_CURRENT_BINARY_DIR}/proto
>> )
>>
>>
>>
>> add_executable(publisher "src/pub.cpp")
>> target_link_libraries(publisher PRIVATE argparse vss)
>>
>>
>> Any suggestion?
>>
>> --
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>>
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>> .
>>
>
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