pcl: add v1.14.0, use llvm-openmp for OpenMP

[valgur]

I scanned the diff against previous version and there were no changes to the list of components or their dependencies, either internal or external ones.

[perseoGI]

Hi @valgur, thank you for your contributions!
As mentioned in #24562 v1.14.1 has fixed some errors which were being patched.
Instead of adding v1.14.0 could you better add the latest release?

Thank you in advance!

[weypro]

I want PCL 1.14.1, and I'm really looking forward to it being merged.

[perseoGI]

Hi @valgur is this PR still in draft?

[valgur]

It should be ready to be merged. Needs a build to verify that, though.

Of course, I would love to use openmp/system instead of copying the flag export logic for the hundredth time (#22360), but it should work regardless of that.

[perseoGI]

It should be ready to be merged. Needs a build to verify that, though.

We are under maintaining right now, I'll launch them manually

Of course, I would love to use openmp/system instead of copying the flag export logic for the hundredth time (#22360), but it should work regardless of that.

We have been discussing with the team and the potential risk of mixing different openMP backends and other problems we sow do not compensate the extra copy-paste code.
I know how you feel, I also do not like to repeat myself.
We will study more in deep in a near future to find a robust solution. Until that, this is a good to go way :)

[valgur]

We have been discussing with the team and the potential risk of mixing different openMP backends and other problems we sow do not compensate the extra copy-paste code.

Thanks, I appreciate the consideration and caution you have put into the topic with the team. The mixing of OpenMP runtimes was a valid concern for the initial compromise suggestion of defaulting to llvm-openmp as the OpenMP provider on CCI. The openmp/system recipe avoids that altogether and only uses llvm-openmp for CLang and AppleClang, so it is worth another look, if you haven't already. Unless you are concerned about the minor risk of mixing system libomp with one from Conan as well?

[conan-center-bot]

Conan v1 pipeline ❌

Failure in build 18 (8b12b8df50e97a93b2bf5bf0eb896559beacf60f):

An unexpected error happened and has been reported. Help is on its way! 🏇

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Failure in build 18 (8b12b8df50e97a93b2bf5bf0eb896559beacf60f):

• pcl/1.14.1:
  An unexpected error happened and has been reported

• pcl/1.13.1:
  Didn't run or was cancelled before finishing

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