Port to CMake >= 3.30 (see policy CMP0167)

[kordejong]

Before configuring HPX, patch this CMake script:

sed -i'' '135 s/MODULE/CONFIG/' $hpx_source_directory/cmake/HPX_SetupBoost.cmake

Probably provide a patch file and reference it in meta.yaml.

[hkaiser]

I think we should apply this to HPX upstream...

[hkaiser]

@kordejong see STEllAR-GROUP/hpx#6576

[kordejong]

Aha, thanks for heads-up @hkaiser . I am now thinking that I may be able to solve the issue I am seeing with configuring an HPX client project by manipulating the CMake policy stack, setting the CMP0167 policy to OLD locally, when calling find_package(HPX). If that works I will close this issue again. No need to create a patch then, when HPX 1.11 will solve things anyway.