Support more current Boost for supporting VS2022 and probably VS2026

[aholzinger]

Latest officially supported Boost version is 1.83.
Boost 1.83 is supporting up to MSC_VER 1939 (LESS 1940) which is VS2022 17.8 which is EOL.
Only VS2022 that is not EOL is VS2022 17.14 which is MSC_VER 1944 which obviously is not supported by Boost version 1.83.

Since Boost version 1.86 MSC_VER up to 1949 (LESS 1950) is supported, but in Development/cpprest/host_utils.cpp there is #include <boost/asio/io_service.hpp> which in Boost version 1.86 is no more existing. It's well probable that this is not the only isse with Boost version 1.86.

So currently nmos-cpp does not support VS2022 non-EOL. Neither it does support V2026.

Since Boost version 1.91 (current Boost version as of writing this issue) VS2026 is supported up to MSC_VER 1959 (LESS 1960). Latest VS2026 18.8 comes with MSC_VER 1952.

So as a minum step forward for nmos-cpp would be to support Boost version 1.86.

A better step forward would be support Bost version 1.91.

[garethsb]

I've been working on fixes for VS 2026 intermittently, I got it building with Boost 1.83.0 but can look at bumping Boost as well. Ref: NVIDIA/nvnmos#60

[aholzinger]

Correcting my own text:
boost/asio/io_service.hpp is still available in Boost 1.86, it's in 1.87 that's no more there.

So Boost version 1.86 could be an intermediate step to support current VS2022.

[garethsb]

Yes, I think the removal of the old ASIO APIs that are used by nmos-cpp, cpprestsdk and websocketpp are a bit of a challenge. I'll see what I can do with Boost 1.86.0.

[garethsb]

Component	Boost ≥1.87 status
websocketpp	zaphoyd/websocketpp#1164 not merged. Distros (FreeBSD, Gentoo, …) carry their own patches. Proposal for a patch for the Conan Center recipe was rejected (conan-io/conan-center-index#26732)
cpprestsdk	microsoft/cpprestsdk#1815 indicates there’s a fork branch and vcpkg / FreeBSD patches. Microsoft’s repo is archived. We've had a long-time plan to fork and maintain for nmos-cpp.
nmos-cpp	Old Asio names in a handful of places (io_service, expires_from_now, websocketpp get_io_service()). We're not testing Ubuntu 14.04 any longer 😆 so I think we could reasonably bump nmos-cpp minimum Boost from 1.54 to 1.66?!

TL;DR we would likely have to maintain forks of websocketpp and cpprestsdk as well as fixing nmos-cpp Asio usage.