Re: [boost] [cmake] Problem with dependencies for configure checks

On 04/06/2021 10:12, Andrey Semashev via Boost wrote:

My stance on this is that Boost.Filesystem must be built on a system with kernel headers matching or older than the systems that will run the binary. This matches the same requirements for Windows. I don't support configs with headers newer than runtime kernel.

It's trivially easy to do a runtime check for statx kernel support and fall back on older syscalls if needed. This is LLFIO doing so, and it works on Linux kernel 2.6: https://github.com/ned14/llfio/blob/develop/include/llfio/v2.0/detail/impl/p... Niall