can't get boost asio working

[cambp4]

Hi,

I'm trying to get boost asio working. I tried setting it up with the examples you gave. I tried with boost and with the asio standalone, none of which work.

It seems like cmake is downloading and putting things in my build folder, I can see folders related to boost or asio.

However when I compile a simple project that requires

#include <boost/asio.hpp>
// #include "asio.hpp"

I cannot compile it because it can't find boost asio.

this is my cmake

set (THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)


CPMAddPackage("gh:chriskohlhoff/asio#[email protected]")
if(asio_ADDED)
  add_library(asio INTERFACE)
  target_include_directories(asio SYSTEM INTERFACE ${asio_SOURCE_DIR}/asio/include)
  target_compile_definitions(asio INTERFACE ASIO_STANDALONE ASIO_NO_DEPRECATED)
  target_link_libraries(asio INTERFACE Threads::Threads)
endif()

add_library(FrameworkLibrary
        src/framework/event_manager/EventManager.cpp
        src/framework/event_manager/ControllerInterface.cpp
        src/framework/timer/TimerInterface.cpp
        src/framework/event_manager/SensorsActuatorsAndControllers.cpp
        src/framework/event_manager/EventDataStore.cpp
        src/framework/state_machine/State.cpp
        src/framework/logging/Logger.cpp
        src/framework/timer/Timer.cpp
        src/framework/event_manager/DelayTimer.cpp
        )
target_link_libraries(FrameworkLibrary
    PUBLIC
        Threads::Threads
        # Boost::asio
        asio
    )

[cambp4]

I managed to get boost asio working in the end, I had to add this in my cmake:

set(Boost_USE_STATIC_LIBS ON)
set(Boost_USE_MULTITHREADED ON)
set(Boost_USE_STATIC_RUNTIME OFF)
CPMAddPackage(
  NAME Boost
  VERSION 1.77.0
  GITHUB_REPOSITORY "boostorg/boost"
  GIT_TAG "boost-1.77.0"
)
if(Boost_ADDED)
    message("boost asio downloaded at " ${Boost_SOURCE_DIR}/libs/asio/include)

    file(GLOB files "${Boost_SOURCE_DIR}/libs/*/include")
    foreach(filename ${files})
        include_directories(${filename})
    endforeach()

    file(GLOB files "${Boost_SOURCE_DIR}/libs/*/*/include")
    foreach(filename ${files})
        include_directories(${filename})
    endforeach()
endif()

[OlivierLDff]

I've made this to use standalone asio: asio.cmake

set(ASIO_REPOSITORY
    "https://github.com/chriskohlhoff/asio"
    CACHE STRING "Repository of asio"
)
set(ASIO_TAG
    "asio-1-18-2"
    CACHE STRING "Git tag of asio"
)

set(ASIOCMAKE_REPOSITORY
    "https://github.com/OlivierLDff/asio.cmake"
    CACHE STRING "Repository of asio.cmake"
)
set(ASIOCMAKE_TAG
    "v1.1.1"
    CACHE STRING "Git tag of asio.cmake"
)

include(cmake/CPM.cmake)

CPMAddPackage(
  NAME asiocmake
  GIT_REPOSITORY ${ASIOCMAKE_REPOSITORY}
  GIT_TAG ${ASIOCMAKE_TAG}
  OPTIONS "ASIO_USE_CPM ON"
)

[ClausKlein]

The fasted way I know to build boost is to use boost-cmake :

# ---- Add dependencies via CPM ----
# see https://github.com/cpm-cmake/CPM.cmake for more info

include(cmake/CPM.cmake)

# PackageProject.cmake will be used to make our target installable
CPMAddPackage("gh:TheLartians/[email protected]")

if(EXISTS "$ENV{HOME}/.cache/CPM/boost_1_79_0")
  set(FETCHCONTENT_SOURCE_DIR_BOOST "$ENV{HOME}/.cache/CPM/boost_1_79_0" CACHE PATH "Boost source DIR")
endif()

CPMAddPackage(
  NAME boost-cmake GITHUB_REPOSITORY ClausKlein/boost-cmake
  GIT_TAG b7c741f42b089117221622c72783d2cb821843dc # feature/upgrade-to-boost-v1.79-0
)

target_link_libraries(
    tftpd PUBLIC Boost::filesystem Boost::boost
)
# ...

Note:

• the Boost git repo takes to long to clone!
• with the cmake based build, there is not longer Boost::asio lib in boost!
• you habe to use the Boost::headers or Boost::boost interface lib
• I extracted the Boost tar archive to $ENV{HOME}/.cache/CPM/boost_1_79_0 manually

bash-3.2$ make distclean
rm -rf ../.build-netkit-tftp-Debug .configure-Debug compile_commands.json *~ .*~ tags
find . -name '*~' -delete
bash-3.2$ time make
mkdir -p ../.build-netkit-tftp-Debug
cd ../.build-netkit-tftp-Debug && cmake -G Ninja -Wdeprecated -Wdev \
      -DUSE_LCOV=OFF -DCMAKE_BUILD_TYPE=Debug \
      -DCMAKE_PREFIX_PATH="/usr/local;/usr/local;/usr" \
      -DCMAKE_STAGING_PREFIX=/usr/local \
      -DCMAKE_MODULE_PATH=/Users/clausklein/Workspace/cmake \
      -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_C_COMPILER=cc -DCMAKE_CXX_COMPILER=c++ /Users/clausklein/Workspace/cpp/netkit-tftp
-- use ccache
-- The CXX compiler identification is AppleClang 13.1.6.13160021
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Git: /usr/local/bin/git (found version "2.36.1") 
-- CPM: adding package [email protected] (v1.9.0 at /Users/clausklein/.cache/CPM/packageproject.cmake/e3848b31ae54d78683c7e47eb420383f05024bdf)
-- The C compiler identification is AppleClang 13.1.6.13160021
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Fetching Boost
-- Fetching Boost - done
-- Boost found: 1.79.0 /Users/clausklein/.cache/CPM/boost_1_79_0
-- Looking for __linux__
-- Looking for __linux__ - not found
-- Looking for _WIN32
-- Looking for _WIN32 - not found
-- Looking for __APPLE__
-- Looking for __APPLE__ - found
-- Looking for __ANDROID__
-- Looking for __ANDROID__ - not found
-- Looking for __FreeBSD__
-- Looking for __FreeBSD__ - not found
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE  
-- The ASM compiler identification is Clang with GNU-like command-line
-- Found assembler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
-- Found BZip2: /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.3.sdk/usr/lib/libbz2.tbd (found version "1.0.8") 
-- Looking for BZ2_bzCompressInit
-- Looking for BZ2_bzCompressInit - found
-- Found ZLIB: /usr/local/lib/libz.dylib (found version "1.2.11.1") 
-- Found the following ICU libraries:
--   uc (required)
--   dt (required)
--   i18n (required)
-- Failed to find all ICU components (missing: ICU_LIBRARY) (found version "70.1")
-- Found iconv library: /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.3.sdk/usr/lib/libiconv.tbd
-- CPM: adding package boost-cmake@0 (b7c741f42b089117221622c72783d2cb821843dc at /Users/clausklein/.cache/CPM/boost-cmake/7554d4bef168447f7af609d08f14400b5f978434)
-- CPM: adding package asio@0 (fea320c422a5de8d2c48cd02ae42e6251acf0030 at /Users/clausklein/.cache/CPM/asio/94e352fdf00c46cd2003e0c20605ad11b336d4ed)
-- Configuring done
-- Generating done
CMake Warning:
  Manually-specified variables were not used by the project:

    USE_LCOV


-- Build files have been written to: /Users/clausklein/Workspace/cpp/.build-netkit-tftp-Debug
touch .configure-Debug
ln -sf /Users/clausklein/Workspace/cpp/netkit-tftp/../.build-netkit-tftp-Debug/compile_commands.json .
cmake --build ../.build-netkit-tftp-Debug
[17/20] Linking CXX static library lib/libboost_filesystem.a
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: lib/libboost_filesystem.a(windows_file_codecvt.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: lib/libboost_filesystem.a(windows_file_codecvt.o) has no symbols
[20/20] Linking CXX executable bin/tftpd_test

real	0m4.836s
user	0m2.103s
sys	0m1.825s
bash-3.2$ 

[Arniiiii]

https://github.com/cpm-cmake/CPM.cmake/issues/501 here's working example with boost