Hi Christian,
It sounds like what might be happening is that your project is
preferrentially picking up a system boost rather than the one that
you've compiled deal.II with. Marc's suggestion of building the
development version with that patch (
#11024)
would likely confirm that. You could also compile your project with
"make VERBOSE=1" and see
if a system boost appears in the link line. If so, then you'll
probably need to either setup a spack environment for deal.II to
make sure that all of its (spack) dependencies take preference when
the environment is active, or you can load the appropriate boost
module (I believe that this would have the same effect). With either
of these, you should clean your project build directory and then
configure it once more.
I hope that this helps you solve your problem.
Best,
Jean-Paul