I'm trying to build a minimal Cobalt library sample. I'm getting link errors: Build and installed Boost with: ./bootstrap.sh --prefix=$HOME/.local ./b2 install Sample: #include <boost/cobalt.hpp> #include <iostream> boost::cobalt::main co_main(int, char *[]) { std::cout << "Hello world\n"; co_return 0; } CMakeLists.txt cmake_minimum_required(VERSION 3.20) project(coro_study) set(CMAKE_EXPORT_COMPILE_COMMANDS ON) set(CMAKE_CXX_STANDARD 20) set(CMAKE_VERBOSE_MAKEFILE ON) set(Boost_VERBOSE 1) set(Boost_DEBUG 1) find_package(Boost REQUIRED COMPONENTS system) add_executable(sample sample.cpp) target_include_directories(sample4 PRIVATE ${Boost_INCLUDE_DIRS}) target_link_libraries(sample4 PRIVATE ${Boost_LIBRARIES}) cmake output: dev ~/Projects/coroutines/x64-linux-debug $ cmake .. -- The C compiler identification is GNU 11.4.0 -- The CXX compiler identification is GNU 11.4.0 -- 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 -- 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 Boost 1.84.0 at /home/dev/.local/lib/cmake/Boost-1.84.0 -- Requested configuration: QUIET REQUIRED COMPONENTS system -- BoostConfig: find_package(boost_headers 1.84.0 EXACT CONFIG REQUIRED QUIET HINTS /home/dev/.local/lib/cmake) -- Found boost_headers 1.84.0 at /home/dev/.local/lib/cmake/boost_headers-1.84.0 -- BoostConfig: find_package(boost_system 1.84.0 EXACT CONFIG REQUIRED QUIET HINTS /home/dev/.local/lib/cmake) -- Found boost_system 1.84.0 at /home/dev/.local/lib/cmake/boost_system-1.84.0 -- Boost toolset is gcc11 (GNU 11.4.0) -- Scanning /home/dev/.local/lib/cmake/boost_system-1.84.0/libboost_system-variant*.cmake -- Including /home/dev/.local/lib/cmake/boost_system-1.84.0/libboost_system-variant-shared.cmake -- [x] libboost_system.so.1.84.0 -- Including /home/dev/.local/lib/cmake/boost_system-1.84.0/libboost_system-variant-static.cmake -- [ ] libboost_system.a -- Adding boost_system dependencies: headers -- Found Boost: /home/dev/.local/lib/cmake/Boost-1.84.0/BoostConfig.cmake (found version "1.84.0") found components: system -- Configuring done -- Generating done -- Build files have been written to: /home/dev/Projects/coroutines/x64-linux-debug make output: dev ~/Projects/coroutines/x64-linux-debug $ make /usr/bin/cmake -S/home/dev/Projects/coroutines -B/home/dev/Projects/coroutines/x64-linux-debug --check-build-system CMakeFiles/Makefile.cmake 0 /usr/bin/cmake -E cmake_progress_start /home/dev/Projects/coroutines/x64-linux-debug/CMakeFiles /home/dev/Projects/coroutines/x64-linux-debug//CMakeFiles/progress.marks make -f CMakeFiles/Makefile2 all make[1]: Entering directory '/home/dev/Projects/coroutines/x64-linux-debug' make -f CMakeFiles/sample4.dir/build.make CMakeFiles/sample4.dir/depend make[2]: Entering directory '/home/dev/Projects/coroutines/x64-linux-debug' cd /home/dev/Projects/coroutines/x64-linux-debug && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /home/dev/Projects/coroutines /home/dev/Projects/coroutines /home/dev/Projects/coroutines/x64-linux-debug /home/dev/Projects/coroutines/x64-linux-debug /home/dev/Projects/coroutines/x64-linux-debug/CMakeFiles/sample4.dir/DependInfo.cmake --color= make[2]: Leaving directory '/home/dev/Projects/coroutines/x64-linux-debug' make -f CMakeFiles/sample4.dir/build.make CMakeFiles/sample4.dir/build make[2]: Entering directory '/home/dev/Projects/coroutines/x64-linux-debug' [ 50%] Building CXX object CMakeFiles/sample4.dir/sample4.cpp.o /usr/bin/c++ -DBOOST_SYSTEM_DYN_LINK -DBOOST_SYSTEM_NO_LIB -isystem /home/dev/.local/include -std=gnu++20 -MD -MT CMakeFiles/sample4.dir/sample4.cpp.o -MF CMakeFiles/sample4.dir/sample4.cpp.o.d -o CMakeFiles/sample4.dir/sample4.cpp.o -c /home/dev/Projects/coroutines/sample4.cpp [100%] Linking CXX executable sample4 /usr/bin/cmake -E cmake_link_script CMakeFiles/sample4.dir/link.txt --verbose=1 /usr/bin/c++ CMakeFiles/sample4.dir/sample4.cpp.o -o sample4 /home/dev/.local/lib/libboost_system.so.1.84.0 /usr/bin/ld: CMakeFiles/sample4.dir/sample4.cpp.o: in function `co_main(co_main(int, char**)::_Z7co_mainiPPc.Frame*) [clone .actor]': sample4.cpp:(.text+0x2a9): undefined reference to `boost::cobalt::detail::main_promise::final_suspend()' /usr/bin/ld: CMakeFiles/sample4.dir/sample4.cpp.o: in function `main::reset_res::operator()(std::pmr::memory_resource*)': sample4.cpp:(.text._ZZ4mainEN9reset_resclEPNSt3pmr15memory_resourceE[_ZZ4mainEN9reset_resclEPNSt3pmr15memory_resourceE]+0x1c): undefined reference to `boost::cobalt::this_thread::set_default_resource(std::pmr::memory_resource*)' /usr/bin/ld: CMakeFiles/sample4.dir/sample4.cpp.o: in function `main': sample4.cpp:(.text.main[main]+0x5b): undefined reference to `boost::cobalt::this_thread::set_default_resource(std::pmr::memory_resource*)' /usr/bin/ld: sample4.cpp:(.text.main[main]+0xc2): undefined reference to `boost::cobalt::detail::main_promise::run_main(boost::cobalt::main)' /usr/bin/ld: CMakeFiles/sample4.dir/sample4.cpp.o: in function `bool boost::cobalt::detail::promise_receiver<void>::awaitable::await_suspend<boost::cobalt::detail::fork::promise_type>(std::__n4861::coroutine_handle<boost::cobalt::detail::fork::promise_type>)': sample4.cpp:(.text._ZN5boost6cobalt6detail16promise_receiverIvE9awaitable13await_suspendINS1_4fork12promise_typeEEEbNSt7__n486116coroutine_handleIT_EE[_ZN5boost6cobalt6detail16promise_receiverIvE9awaitable13await_suspendINS1_4fork12promise_typeEEEbNSt7__n486116coroutine_handleIT_EE]+0x7f): undefined reference to `boost::cobalt::detail::already_awaited()' /usr/bin/ld: CMakeFiles/sample4.dir/sample4.cpp.o: in function `boost::cobalt::detail::promise_receiver<void>::awaitable::interrupt_await() &': sample4.cpp:(.text._ZNR5boost6cobalt6detail16promise_receiverIvE9awaitable15interrupt_awaitEv[_ZNR5boost6cobalt6detail16promise_receiverIvE9awaitable15interrupt_awaitEv]+0x33): undefined reference to `boost::cobalt::detail::detached_exception()' collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/sample4.dir/build.make:101: sample4] Error 1 make[2]: Leaving directory '/home/dev/Projects/coroutines/x64-linux-debug' make[1]: *** [CMakeFiles/Makefile2:86: CMakeFiles/sample4.dir/all] Error 2 make[1]: Leaving directory '/home/dev/Projects/coroutines/x64-linux-debug' make: *** [Makefile:94: all] Error 2
CMake doesn't support cobalt (even the latest cmake 3.28.1 doesn't support it). On 12/21/23 22:29, Josué Andrade Gomes via Boost-users wrote:
cmake_minimum_required(VERSION 3.20) project(coro_study)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON) set(CMAKE_CXX_STANDARD 20) set(CMAKE_VERBOSE_MAKEFILE ON)
set(Boost_VERBOSE 1) set(Boost_DEBUG 1)
find_package(Boost REQUIRED COMPONENTS system)
add_executable(sample sample.cpp)
target_include_directories(sample4 PRIVATE ${Boost_INCLUDE_DIRS}) target_link_libraries(sample4 PRIVATE ${Boost_LIBRARIES})
Same error when building manually: $ g++ -I~/.local/include -L~/.local/lib -o sample ../sample4.cpp -std=c++20 -fcoroutines -lboost_system /usr/bin/ld: /tmp/ccr6j1MG.o: in function `co_main(co_main(int, char**)::_Z7co_mainiPPc.Frame*) [clone .actor]': sample4.cpp:(.text+0x2a9): undefined reference to `boost::cobalt::detail::main_promise::final_suspend()' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `main::reset_res::operator()(std::pmr::memory_resource*)': sample4.cpp:(.text._ZZ4mainEN9reset_resclEPNSt3pmr15memory_resourceE[_ZZ4mainEN9reset_resclEPNSt3pmr15memory_resourceE]+0x1c): undefined reference to `boost::cobalt::this_thread::set_default_resource(std::pmr::memory_resource*)' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `main': sample4.cpp:(.text.main[main]+0x5b): undefined reference to `boost::cobalt::this_thread::set_default_resource(std::pmr::memory_resource*)' /usr/bin/ld: sample4.cpp:(.text.main[main]+0xc2): undefined reference to `boost::cobalt::detail::main_promise::run_main(boost::cobalt::main)' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `bool boost::cobalt::detail::promise_receiver<void>::awaitable::await_suspend<boost::cobalt::detail::fork::promise_type>(std::__n4861::coroutine_handle<boost::cobalt::detail::fork::promise_type>)': sample4.cpp:(.text._ZN5boost6cobalt6detail16promise_receiverIvE9awaitable13await_suspendINS1_4fork12promise_typeEEEbNSt7__n486116coroutine_handleIT_EE[_ZN5boost6cobalt6detail16promise_receiverIvE9awaitable13await_suspendINS1_4fork12promise_typeEEEbNSt7__n486116coroutine_handleIT_EE]+0x7f): undefined reference to `boost::cobalt::detail::already_awaited()' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `boost::cobalt::detail::promise_receiver<void>::awaitable::interrupt_await() &': sample4.cpp:(.text._ZNR5boost6cobalt6detail16promise_receiverIvE9awaitable15interrupt_awaitEv[_ZNR5boost6cobalt6detail16promise_receiverIvE9awaitable15interrupt_awaitEv]+0x33): undefined reference to `boost::cobalt::detail::detached_exception()' collect2: error: ld returned 1 exit status Em sáb., 23 de dez. de 2023 às 05:22, accelerator0099 via Boost-users <boost-users@lists.boost.org> escreveu:
CMake doesn't support cobalt (even the latest cmake 3.28.1 doesn't support it).
On 12/21/23 22:29, Josué Andrade Gomes via Boost-users wrote:
cmake_minimum_required(VERSION 3.20) project(coro_study)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON) set(CMAKE_CXX_STANDARD 20) set(CMAKE_VERBOSE_MAKEFILE ON)
set(Boost_VERBOSE 1) set(Boost_DEBUG 1)
find_package(Boost REQUIRED COMPONENTS system)
add_executable(sample sample.cpp)
target_include_directories(sample4 PRIVATE ${Boost_INCLUDE_DIRS}) target_link_libraries(sample4 PRIVATE ${Boost_LIBRARIES})
Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users
Don’t you need to actually link the library? Richard Hodges hodges.r@gmail.com On Sat, 23 Dec 2023 at 22:17, Josué Andrade Gomes via Boost-users < boost-users@lists.boost.org> wrote:
Same error when building manually:
$ g++ -I~/.local/include -L~/.local/lib -o sample ../sample4.cpp -std=c++20 -fcoroutines -lboost_system /usr/bin/ld: /tmp/ccr6j1MG.o: in function `co_main(co_main(int, char**)::_Z7co_mainiPPc.Frame*) [clone .actor]': sample4.cpp:(.text+0x2a9): undefined reference to `boost::cobalt::detail::main_promise::final_suspend()' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `main::reset_res::operator()(std::pmr::memory_resource*)':
sample4.cpp:(.text._ZZ4mainEN9reset_resclEPNSt3pmr15memory_resourceE[_ZZ4mainEN9reset_resclEPNSt3pmr15memory_resourceE]+0x1c): undefined reference to
`boost::cobalt::this_thread::set_default_resource(std::pmr::memory_resource*)' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `main': sample4.cpp:(.text.main[main]+0x5b): undefined reference to
`boost::cobalt::this_thread::set_default_resource(std::pmr::memory_resource*)' /usr/bin/ld: sample4.cpp:(.text.main[main]+0xc2): undefined reference to `boost::cobalt::detail::main_promise::run_main(boost::cobalt::main)' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `bool
boost::cobalt::detail::promise_receiver<void>::awaitable::await_suspend<boost::cobalt::detail::fork::promise_type>(std::__n4861::coroutine_handle<boost::cobalt::detail::fork::promise_type>)':
sample4.cpp:(.text._ZN5boost6cobalt6detail16promise_receiverIvE9awaitable13await_suspendINS1_4fork12promise_typeEEEbNSt7__n486116coroutine_handleIT_EE[_ZN5boost6cobalt6detail16promise_receiverIvE9awaitable13await_suspendINS1_4fork12promise_typeEEEbNSt7__n486116coroutine_handleIT_EE]+0x7f): undefined reference to `boost::cobalt::detail::already_awaited()' /usr/bin/ld: /tmp/ccr6j1MG.o: in function
`boost::cobalt::detail::promise_receiver<void>::awaitable::interrupt_await() &':
sample4.cpp:(.text._ZNR5boost6cobalt6detail16promise_receiverIvE9awaitable15interrupt_awaitEv[_ZNR5boost6cobalt6detail16promise_receiverIvE9awaitable15interrupt_awaitEv]+0x33): undefined reference to `boost::cobalt::detail::detached_exception()' collect2: error: ld returned 1 exit status
Em sáb., 23 de dez. de 2023 às 05:22, accelerator0099 via Boost-users <boost-users@lists.boost.org> escreveu:
CMake doesn't support cobalt (even the latest cmake 3.28.1 doesn't support it).
On 12/21/23 22:29, Josué Andrade Gomes via Boost-users wrote:
cmake_minimum_required(VERSION 3.20) project(coro_study)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON) set(CMAKE_CXX_STANDARD 20) set(CMAKE_VERBOSE_MAKEFILE ON)
set(Boost_VERBOSE 1) set(Boost_DEBUG 1)
find_package(Boost REQUIRED COMPONENTS system)
add_executable(sample sample.cpp)
target_include_directories(sample4 PRIVATE ${Boost_INCLUDE_DIRS}) target_link_libraries(sample4 PRIVATE ${Boost_LIBRARIES})
Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users
_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users
No Cobalt library was built by b2. Em sáb., 23 de dez. de 2023 às 18:45, Richard Hodges via Boost-users <boost-users@lists.boost.org> escreveu:
Don’t you need to actually link the library?
Richard Hodges hodges.r@gmail.com
On Sat, 23 Dec 2023 at 22:17, Josué Andrade Gomes via Boost-users <boost-users@lists.boost.org> wrote:
Same error when building manually:
$ g++ -I~/.local/include -L~/.local/lib -o sample ../sample4.cpp -std=c++20 -fcoroutines -lboost_system /usr/bin/ld: /tmp/ccr6j1MG.o: in function `co_main(co_main(int, char**)::_Z7co_mainiPPc.Frame*) [clone .actor]': sample4.cpp:(.text+0x2a9): undefined reference to `boost::cobalt::detail::main_promise::final_suspend()' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `main::reset_res::operator()(std::pmr::memory_resource*)': sample4.cpp:(.text._ZZ4mainEN9reset_resclEPNSt3pmr15memory_resourceE[_ZZ4mainEN9reset_resclEPNSt3pmr15memory_resourceE]+0x1c): undefined reference to `boost::cobalt::this_thread::set_default_resource(std::pmr::memory_resource*)' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `main': sample4.cpp:(.text.main[main]+0x5b): undefined reference to `boost::cobalt::this_thread::set_default_resource(std::pmr::memory_resource*)' /usr/bin/ld: sample4.cpp:(.text.main[main]+0xc2): undefined reference to `boost::cobalt::detail::main_promise::run_main(boost::cobalt::main)' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `bool boost::cobalt::detail::promise_receiver<void>::awaitable::await_suspend<boost::cobalt::detail::fork::promise_type>(std::__n4861::coroutine_handle<boost::cobalt::detail::fork::promise_type>)': sample4.cpp:(.text._ZN5boost6cobalt6detail16promise_receiverIvE9awaitable13await_suspendINS1_4fork12promise_typeEEEbNSt7__n486116coroutine_handleIT_EE[_ZN5boost6cobalt6detail16promise_receiverIvE9awaitable13await_suspendINS1_4fork12promise_typeEEEbNSt7__n486116coroutine_handleIT_EE]+0x7f): undefined reference to `boost::cobalt::detail::already_awaited()' /usr/bin/ld: /tmp/ccr6j1MG.o: in function `boost::cobalt::detail::promise_receiver<void>::awaitable::interrupt_await() &': sample4.cpp:(.text._ZNR5boost6cobalt6detail16promise_receiverIvE9awaitable15interrupt_awaitEv[_ZNR5boost6cobalt6detail16promise_receiverIvE9awaitable15interrupt_awaitEv]+0x33): undefined reference to `boost::cobalt::detail::detached_exception()' collect2: error: ld returned 1 exit status
Em sáb., 23 de dez. de 2023 às 05:22, accelerator0099 via Boost-users <boost-users@lists.boost.org> escreveu:
CMake doesn't support cobalt (even the latest cmake 3.28.1 doesn't support it).
On 12/21/23 22:29, Josué Andrade Gomes via Boost-users wrote:
cmake_minimum_required(VERSION 3.20) project(coro_study)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON) set(CMAKE_CXX_STANDARD 20) set(CMAKE_VERBOSE_MAKEFILE ON)
set(Boost_VERBOSE 1) set(Boost_DEBUG 1)
find_package(Boost REQUIRED COMPONENTS system)
add_executable(sample sample.cpp)
target_include_directories(sample4 PRIVATE ${Boost_INCLUDE_DIRS}) target_link_libraries(sample4 PRIVATE ${Boost_LIBRARIES})
Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users
_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users
_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users
participants (3)
-
accelerator0099 -
Josué Andrade Gomes -
Richard Hodges