[Bug 266279] devel/cmake: cmake fails to find *.cmake files in /usr/local/lib/cmake

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266279

            Bug ID: 266279
           Summary: devel/cmake: cmake fails to find *.cmake files in
                    /usr/local/lib/cmake
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ports-bugs@FreeBSD.org
          Reporter: yuri@freebsd.org

This CMakeLists.txt file:
> cmake_minimum_required(VERSION 3.12)
> find_package(OpenCASCADE REQUIRED)

fails to find OpenCASCADE:
> $ cmake -DCMAKE_MODULE_PATH=/usr/local .
> ...skipped...
> CMake Error at CMakeLists.txt:10 (find_package):
>   By not providing "FindOpenCASCADE.cmake" in CMAKE_MODULE_PATH this project
>   has asked CMake to find a package configuration file provided by
>   "OpenCASCADE", but CMake did not find one.
> 
>   Could not find a package configuration file provided by "OpenCASCADE" with
>   any of the following names:
> 
>     OpenCASCADEConfig.cmake
>     opencascade-config.cmake
> 
>   Add the installation prefix of "OpenCASCADE" to CMAKE_PREFIX_PATH or set
>   "OpenCASCADE_DIR" to a directory containing one of the above files.  If
>   "OpenCASCADE" provides a separate development package or SDK, be sure it
>   has been installed.

opencascade-7.6.0_6 does install the file
/usr/local/lib/cmake/OpenCASCADEConfig.cmake,
I am not sure if -DCMAKE_MODULE_PATH=/usr/local is required, it probably isn't.

There are at least 2 other ports that suffer from the same problem:
science/axom and science/serac - they also install *.cmake files into
lib/cmake.

Why aren't these projects discovered by cmake? Is it wrong to place *.cmake
files into lib/cmake?
Should cmake be altered to look in lib/cmake?

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