Problem compiling project: error ld with -lproxTV

fonsocm · December 17, 2020, 10:32am

Hi.

I am compiling a project with ITK 5.1.2 over KDE Neon (based on Ubuntu 20.04 LTS) and I obtain the error: /usr/bin/ld: cannot find -lproxTV. However, if I go to ./itk/lib there is libitkproxTV-5.1.a. And ITK compiled without problem (some warning).

I tried to compile ITK with gcc (9.3.0) and clang (10.0.1) but it shows the same error. I have defined in my .profile:

export VTK_DIR=/opt/vtk/lib/cmake/vtk-9.0
export ITK_DIR=/opt/itk/lib/cmake/ITK-5.1

Can someone help me?

Many thanks.

phcerdan · December 17, 2020, 11:39am

Are you enabling Module_TotalVariation:BOOL=ON when you compile ITK?
proxTV is fetched when using the TotalVariation module: https://github.com/InsightSoftwareConsortium/ITKTotalVariation

fonsocm · December 17, 2020, 12:40pm

Yes.

And I have USE_SYSTEM_PROXTV to off.

phcerdan · December 17, 2020, 1:53pm

I cannot reproduce using itk master, and a external example requiring ITK TotalVaration module.
The library associated with the target proxTV::proxTV is indeed libitkproxTV (no -lproxTV).

Was this working before and now failing with that release, or is it a new project?
In your project, do you have any logic specific to the library proxTV?
Have you tried a clean build of your project?

fonsocm · December 18, 2020, 6:09pm

It is a project in ITK v4 we are translating to ITK v5? In ITK v4, it worked without problem.
No. The only “special” logic we have in the project it is the use of: itkConnectedRegionEdgeThresholdImageFilter (from David Doria): https://github.com/daviddoria/itkConnectedRegionEdgeThresholdImageFilter.
Yes and the error persists.

phcerdan · December 18, 2020, 6:32pm

Running out of ideas, but I suspect that if it is asking for -lproxTV is because an option in the CACHE is set to use the system proxTV (instead of the internal libitkproxTV).

Double checking, the option is named: ITK_USE_SYSTEM_proxTV, not USE_SYSTEM_PROXTV as you reported. Try setting ITK_USE_SYSTEM_proxTV to OFF.