[question] What are the obstacles of merging PCL library for now?

[hwhsu1231]

PCL(Point Cloud Library) is a famous C++ library. However, I noticed that it is not supported in ConanCenter for now.

Originally, I decided to post a library request for it. Then, I found that there were already some PRs trying to merging this PCL library. However, they failed. What are the obstacles of merging PCL library for now?

• Add PCL package #1891
• [Test Only] pcl recipe #4982
• [DO NOT MERGE!] pcl - check how much can we actually allocate #9055
• [DO NOT MERGE!] pcl - check how much can we actually allocate #9057
• [DO NOT MERGE] PCL : profile build via time #9078

For now, I'm not capable of helping this ,but I just hope PCL can be supported in ConanCenter as soon as possible.

[SSE4]

@jgsogo @davidsanfal we need to resume our investigation here.

@hwhsu1231 the problem is PCL requires a significant amout of memory to compile.
we have created a special cluster which contains nodes (=build agents) with more memory, but compilation still terminates in the nodes (perhaps, compiler got killed by OOM killer). my investigation shows it gots terminated before memory limit has been reached. moreover, it doesn't reproduce locally for me, so it's a bit tricky to figure out what's going on (probably, something is misconfigured).

[jcar87]

Closed via #18389 - thanks @EstebanDugueperoux2 for your efforts.

Thanks to the PCL maintainers and contributors as well - there is an investigation here related to high memory consumption during compilation due to template instantiations PointCloudLibrary/pcl#3414 (comment), which is addressed upstream in PointCloudLibrary/pcl#5764, as well as the PCL_ONLY_CORE_POINT_TYPES cmake option, which is enabled on all of PCLs CI plans.