Yes, my VTK application calls PROG functions. I submitted a description of this odd behavior to the PROJ email list, and a response claims that PROJ-8.1.0 does in fact add $PROJ_LIB to the searchpath, contrary to what I see with the PROJ-8.1.0 shipped with VTK-9.2.0.
Is there some way I can easily disable VTK’s use of its “internal” PROJ code, i.e. so that my VTK application invokes the “external” PROG headers/libraries already installed on my system?
Thanks!