Lyndon wrote: > On 2012-02-05, at 8:49 AM, David Levine wrote: > > > Or to really > > play it safe, have configure determine which are available > > and use them all? > > At the same time? Sounds like a recipe for deadlock to me. And it won't > work correctly, if at all, on platforms that implement one or more of > fcntl/flock/lockf as wrappers around one of the others (e.g. Solaris).
So it sounds like picking one default for each platform and allowing run-time selection is the way to go. > configure should be able to set this on a per-platform basis. It can't because it depends on what other applications use. > As for internal locking, it's a toss-up between flock and lockf. To me > the tie breaker is which of the two gets along best with network mounted > filesystems these days (and think AFP and CIFS in addition to NFS). > > And forget about fcntl -- the semantics are too broken for > consideration. If neither of flock/lockf are available, we can fall back > to dot locking. Fedora /bin/mail uses fcntl and Mutt recommends it. procmail can use it. I haven't had any problems since I starting using fcntl. I did see problems with dot locking, I expect because other applications weren't using it. David _______________________________________________ Nmh-workers mailing list Nmh-workers@nongnu.org https://lists.nongnu.org/mailman/listinfo/nmh-workers
