We/I *could* add cmake/pc file generation to that tool, which would make things work nicely with PostgreSQL 17 of course.
For giggles, I took a crack at doing that, manually creating .pc files for everything I've been working with so far. It seems to work as expected, except that unlike everything else libintl is detected entirely based on whether the header and library can be found. I had to pass extra lib and include dirs: