On Wed, Nov 16, 2022 at 10:00 PM James Begley <james.begley@gmail.com> wrote:
I'm aware of this issue - I'm currently struggling to build therion under fedora 37 (which has proj v9 installed). I had hoped that it would be a simple task to rebuild therion to pick up the new proj libraries, but that doesnt appear to be the case.

Hi,
switching to cmake-based build should help. Make-based build uses "pkg-config proj --libs --static" to get the required libraries and for Proj9 it returns a lot of weird dependencies which are not installed by default when you install Proj 9. Cmake build uses dynamic linking and avoids this problem.
Martin