Build with CMake < 3.24 and openMP fails

[MarDiehl]

Describe the bug
Building with CMake < 3.24 fails because

find_package ( OpenMP GLOBAL )

in SuiteSparse_config/CMakeLists.txt which has cmake_minimum_required ( VERSION 3.22 ) but according to https://cmake.org/cmake/help/latest/command/find_package.html 3.24 is required.

3.24 is about 1.5 years old (https://www.kitware.com/cmake-3-24-0-is-available-for-download/)

Screenshots

CMake Error at SuiteSparse_config/CMakeLists.txt:73 (find_package):
  find_package called with invalid argument "GLOBAL"

Desktop (please complete the following information):
linux-pkgs-dbg-ftn-interfaces configuration on GitLab CI of PETSc (https://gitlab.com/petsc/petsc/-/jobs/5840470517)

Additional context
https://gitlab.com/petsc/petsc/-/merge_requests

[mmuetzel]

Thanks for reporting.
#670 should work around that issue with older CMake versions.

[DrTimothyAldenDavis]

Would it be helpful to post a SuiteSparse 7.5.0.betaX release with this update?

[DrTimothyAldenDavis]

I've posted a 7.5.0.beta3 with this fix: https://github.com/DrTimothyAldenDavis/SuiteSparse/releases/tag/v7.5.0.beta3

[DrTimothyAldenDavis]

Fixed in 7.5.0 (to be released today).