I believe there's a fix for this about to come out in boost 1.73 Until then it will work with clang9 -fcoroutines-ts -stdlib=libc++
It's because gcc went straight to the c++20 version of coroutines without stopping fot coroutines.ts. On Sun, 26 Apr 2020 at 00:49, Pedro Pinto via Boost-users < boost-users@lists.boost.org> wrote: > Hi there, I am trying to compile the asio co-routine example but as far as > I can tell boost is looking for an <experimental/coroutine> header that > does not exist on my system. I am using boost 1.71 and gcc on ubuntu 20.04. > I tried both stock gcc (v9 on ubuntu) which does not have a coroutine > header and gcc 10 which does have it but not under the experimental > directory. > > Here is the output with gcc 10: > /usr/lib/ccache/g++ -I../../src -g -Wall -pedantic -Wextra > -Werror -DASIO_HAS_CO_AWAIT -DBOOST_ASIO_HAS_CO_AWAIT -fcoroutines > --std=c++2a -fdiagnostics-color -MD -MT CMakeFiles/mcbridge.dir > /src/main.cpp.o -MF CMakeFiles/mcbridge.dir/src/main.cpp.o.d -o > CMakeFiles/mcbridge.dir/src/main.cpp.o -c ../../src/main.cpp > In file included from /usr/include/boost/asio/co_spawn.hpp:22, > from ../../src/main.cpp:4: > /usr/include/boost/asio/awaitable.hpp:22:10: fatal error: > experimental/coroutine: > No such file or directory > 22 | #include <experimental/coroutine> > > > > Any ideas on how to compile this example? > _______________________________________________ > Boost-users mailing list > Boost-users@lists.boost.org > https://lists.boost.org/mailman/listinfo.cgi/boost-users > -- Richard Hodges hodge...@gmail.com office: +442032898513 home: +376841522 mobile: +376380212
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