Boost 1.89 removed the system stub

[leakingmemory]

Apparently the system stub was removed from boost 1.89. This causes projects depending on cpprestsdk to fail to build in case they use cmake to find and configure cpprestsdk.

[PPN-SD]

And to fix cppressdk here: https://github.com/microsoft/cpprestsdk/blob/master/Release/cmake/cpprest_find_boost.cmake#L49

[leakingmemory]

Sure there might be permutations of this depending on the target platform and similar. But just to confirm, it failed to find boost (specificly Boost::system) and removing Boost::system from the file fixed it?

Just to clarify, I'm the maintainer of the FreeBSD port now, and I at least intermittently observed issues that were solved by the original patch while trying to build for the new FreeBSD 15.0 in december.

[PPN-SD]

But just to confirm, it failed to find boost (specificly Boost::system) and removing Boost::system from the file fixed it?

Yes. Because boost_system is header only since a while (1.69) and the stub lib is now removed as you said.