[Bug 272173] graphics/opencv ATLAS knob cannot depend on cblas and cmake cannot find lapacke for this knob

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272173

            Bug ID: 272173
           Summary: graphics/opencv ATLAS knob cannot depend on cblas and
                    cmake cannot find lapacke for this knob
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: desktop@FreeBSD.org
          Reporter: alt2600@icloud.com
          Assignee: desktop@FreeBSD.org
             Flags: maintainer-feedback?(desktop@FreeBSD.org)

Created attachment 242958
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=242958&action=edit
opencv_Makefile-fixatlas.diff

maybe fallout from my 13.2 update that I lost track of, but I thought I had
this package while trying to get blender installed. Anyway, noticed cblas and
atlas-math cannot coexist, cblas says things are broken, they clobber. after
clearing this depend and checking the configure's output I noticed lapack
wasn't being found, actually lapacke, so had to force its path using a CMAKE_ON
with Atlas_CLAPACK_INCLUDE_DIR.

opencv now builds with the ATLAS blas option selected. 

Its possible openblas maybe has this issue? not sure, worth a quick check, but
I have no easy way to do that at the moment. it would def be using a different
cmake variable though. maybe the openblas cmake routines check
/usr/local/include/lapacke by default though too. the variable would seemingly
be OpenBLAS_INCLUDE_DIR based on the OpenCVFindLAPACK.cmake routines that don't
include the full path that was tripping up the Atlas routines in the same file.

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