Closing as not-a-bug given discussion below. Please reply if you have additional comments/etc. Thanks.
Andy On Fri 24 Jun 2016 14:32, Andy Wingo <wi...@pobox.com> writes: > On Tue 29 Sep 2015 20:21, Wilhelm Schuster <wilh...@wilhelm.re> writes: > >> The basic run down: When I try to unload (using dlclose() ) a shared >> object that is linked to libguile after calling scm_init_guile() OR >> scm_with_guile(), a Segfault is triggered. > > Hummmmmmmmmmmm! Well, so this is quite tricky. Loading Guile loads > Guile which might start threads (some helper threads behind the scenes > for finalization (see section on scm_set_automatic_finalization_enabled > in tha manual), perhaps a thread to listen for signals, and then the > garbage collector that we use (libgc) might start parallel marking > threads (though you can control that parameter too). > > Guile doesn't really provide an interface to allow it to shut down > cleanly and I don't know if it can. (I guess it could.) However it > would take quite some amount of work and I don't see us doing it any > time soon. In any case simply trying to dlclose() is never likely to > work, as you aren't synchronizing with Guile itself. > > Sorry for the bad news! > > Andy