Control: severity -1 normal Control: tags -1 + wontfix For now, I have worked around this in glib2.0 by removing the libmount dependency. It looks as though a libmount maintainer (upstream or in Debian, whoever gets there first!) is going to make this dependency non-problematic in practice, either by loading libcryptsetup on-demand with dlopen() (upstream) or by disabling that feature until that happens (in Debian). When that has happened, I'll re-enable libmount in glib2.0. Either of these workarounds should be enough to stop Steam crashing, so I'm lowering the severity of this bug.
It is still a bug that the Steam client crashes when its dependencies pull in OpenSSL, but that is a bug that Debian cannot solve, because it is to do with Valve's proprietary binaries; so I'm also tagging this wontfix. In this case please interpret it as "can't fix". smcv