Public bug reported:
As discussed in https://github.com/PointCloudLibrary/pcl/issues/6094,
including PCL in a cmake project produces this warning:
```
CMake Warning (dev) at
/usr/lib/x86_64-linux-gnu/cmake/pcl/Modules/FindFLANN.cmake:45 (find_package):
Policy CMP0144 is not set: find_package uses upper-case <PACKAGENAME>_ROOT
variables. Run "cmake --help-policy CMP0144" for policy details. Use the
cmake_policy command to set the policy and suppress this warning.
CMake variable FLANN_ROOT is set to:
/usr
For compatibility, find_package is ignoring the variable, but code in a
.cmake module might still use it.
Call Stack (most recent call first):
/usr/lib/x86_64-linux-gnu/cmake/pcl/PCLConfig.cmake:261 (find_package)
/usr/lib/x86_64-linux-gnu/cmake/pcl/PCLConfig.cmake:306 (find_flann)
/usr/lib/x86_64-linux-gnu/cmake/pcl/PCLConfig.cmake:570
(find_external_library)
[... calling find_package(PCL) in our own config ...]
This warning is for project developers. Use -Wno-dev to suppress it.
```
This warning shows up upon a find_package call to PCL, and is not a
warning directed at users of the pcl package. This warning was fixed
upstream recently, in this commit
https://github.com/PointCloudLibrary/pcl/commit/da76ad9c827a4598e57b3850de4ef368b02330ca.
I would like to request this patch to be included in the debian releases
on Ubuntu Jazzy. Currently, any project that depends directly or even
**transitively depends** on PCL, gets this error unless developer
warnings are disabled across their whole project with ``-Wno-dev``,
which isn't ideal. This includes many ROS packages.
** Affects: pcl (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2111295
Title:
Warning in all downstream packages - Policy CMP0144 is not set
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