[pdal] Trouble compiling PDAL with MATLAB Plugin on Mac OS

[Patrick Rennich]

Makes sense. I’ll debug on my end and report back when fixed.

From: Andrew Bell <andrew.bell.ia at gmail.com>
Date: Monday, June 3, 2024 at 11:45 AM
To: Patrick Rennich <patrick.rennich at aloftsensing.com>
Cc: karney at alum.mit.edu <karney at alum.mit.edu>, pdal at lists.osgeo.org <pdal at lists.osgeo.org>, Charles Karney <charles.karney at gmail.com>
Subject: Re: [pdal] Trouble compiling PDAL with MATLAB Plugin on Mac OS
This doesn't seem to have anything to do with PDAL, so I would do the normal debug process of making a simple reproducer. In this case that means using the most basic CMakeLists.txt that requires matlab and debug that. If you can recreate the error with something simple, you should be able to ask questions elsewhere to resolve the issue of go through it until you can figure it out.

On Mon, Jun 3, 2024 at 11:07 AM Patrick Rennich via pdal <pdal at lists.osgeo.org<mailto:pdal at lists.osgeo.org>> wrote:
Thanks for the pointers. I pulled the latest FindMatlab.cmake from the cmake repository. This latest file has updates for Matlab 2024a which is what I’m using, but it doesn’t seem to help. I still get the same error.

Patrick

From: pdal <pdal-bounces at lists.osgeo.org<mailto:pdal-bounces at lists.osgeo.org>> on behalf of Charles Karney via pdal <pdal at lists.osgeo.org<mailto:pdal at lists.osgeo.org>>
Date: Monday, June 3, 2024 at 10:50 AM
To: pdal at lists.osgeo.org<mailto:pdal at lists.osgeo.org> <pdal at lists.osgeo.org<mailto:pdal at lists.osgeo.org>>
Cc: Charles Karney <charles.karney at gmail.com<mailto:charles.karney at gmail.com>>
Subject: Re: [pdal] Trouble compiling PDAL with MATLAB Plugin on Mac OS
Note well that the error is occurring in find_library(Matlab REQUIRED)
before it gets to find_package.  (But I don't know why find_library
is needed in addition to find_package.)

On 6/3/24 10:34, Howard Butler via pdal wrote:
> I also no longer have access to Matlab but I remember the Find logic
> being extra finicky on MacOS with the frameworks and weird OSXisms that
> are possible. It might also be worth it to track down a more recent
> FindMatlab.cmake file out there.
>
>> On Jun 3, 2024, at 8:48 AM, Andrew Bell via pdal
>> <pdal at lists.osgeo.org<mailto:pdal at lists.osgeo.org>> wrote:
>>
>> I have no access to Matlab and I don't know who does at this point.
>>
>> Looking at the FindMatlab file, you might try just setting
>> Matlab_ROOT_DIR and lose the defines for the specific libraries. :shrug:
>>
>> On Mon, Jun 3, 2024 at 9:41 AM Patrick Rennich via pdal
>> <pdal at lists.osgeo.org<mailto:pdal at lists.osgeo.org> <mailto:pdal at lists.osgeo.org>> wrote:
>>
>>     Hello,____
>>
>>     ____
>>
>>     I’m having trouble compiling PDAL from source on Mac OS when
>>     turning on the BUILD_MATLAB_PLUGIN=ON. PDAL compiles fine without
>>     this, but when I execute cmake as follows:____
>>
>>     ____
>>
>>     cmake -G Ninja -DBUILD_PLUGIN_MATLAB=ON
>>     -DMatlab_MX_LIBRARY=/Applications/MATLAB_R2024a.app/bin/maca64
>>     -DMatlab_MAT_LIBRARY=/Applications/MATLAB_R2024a.app/bin/maca64
>>     -DMatlab_ENG_LIBRARY=/Applications/MATLAB_R2024a.app/bin/maca64
>>     -DMatlab_INCLUDE_DIRS=/Applications/MATLAB_R2024a.app/extern/include ..____
>>
>>     ____
>>
>>     I get the following error message:____
>>
>>     ____
>>
>>     CMake Error at cmake/matlab.cmake:4 (find_library):____
>>
>>       Could not find Matlab using the following names:____
>>
>>     Call Stack (most recent call first):____
>>
>>       plugins/matlab/CMakeLists.txt:3 (include)____
>>
>>     ____
>>
>>     Let me know if there’s any other info I can provide, and any help
>>     is much appreciated. Thanks.____
>>
>>     __ __
>>
>>     __ __
>>
>>     Patrick
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--
Andrew Bell
andrew.bell.ia at gmail.com<mailto:andrew.bell.ia at gmail.com>
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