Signed-off-by: Björn Baumbach <bb@sernet.de>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>

Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>

Only lib/util uses the systemd library, so it makes sense to have the
checks there. This also removes the need for the ctdb build script to
specify an empty tag for the systemd library.

Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>

On some platforms you can not debug coredumps after the default signal handler
gets done dumping core.  This allows waf to have an option to disable our
default signal handler.