Build breaks with boost-1.87+: fatal error: no type named 'io_service' in namespace 'websocketpp::lib::asio'

[yurivict]

In file included from /wrkdirs/usr/ports/science/ttk/work/ttk-1.3.0/core/vtk/ttkWebSocketIO/ttkWebSocketIO.cpp:1:
In file included from /wrkdirs/usr/ports/science/ttk/work/ttk-1.3.0/core/vtk/ttkWebSocketIO/ttkWebSocketIO.h:36:
In file included from /wrkdirs/usr/ports/science/ttk/work/ttk-1.3.0/core/base/webSocketIO/WebSocketIO.h:38:
In file included from /usr/local/include/websocketpp/config/asio_no_tls.hpp:32:
In file included from /usr/local/include/websocketpp/transport/asio/endpoint.hpp:32:
/usr/local/include/websocketpp/transport/asio/connection.hpp:89:24: fatal error: no type named 'io_service' in namespace 'websocketpp::lib::asio'
   89 |     typedef lib::asio::io_service * io_service_ptr;
      |             ~~~~~~~~~~~^
1 error generated.

The class in question was deprecated in Boost and replaced with another class.

Could you please fix it and make a release?

Thanks,
Yuri

[julien-tierny]

Dear Yuri,
thanks a lot for your issue!

@JonasLukasczyk
could you have a look at this websocket problem?

@yurivict
Unfortunately, we do not have any release currently scheduled.
A quick workaround would consist in disabling the websocketio support (by passing -DTTK_ENABLE_WEBSOCKETPP=OFF on cmake's command line). I hope this helps!

[yurivict]

-DTTK_ENABLE_WEBSOCKETPP=OFF worked, thank you!

I am leaving this open as a reminder to fix the underlying problem.