> -----Original Message----- > From: Jeff Layton [mailto:jlayton@xxxxxxxxxx] > Sent: Saturday, June 06, 2009 4:12 AM > To: Mike Frysinger > Cc: linux-nfs@xxxxxxxxxxxxxxx > Subject: Re: should we make --enable-tirpc the default in > current nfs-utils? > > On Fri, 5 Jun 2009 16:50:41 -0400 > Mike Frysinger <vapier@xxxxxxxxxx> wrote: > > > On Friday 05 June 2009 13:36:34 Jeff Layton wrote: > > > On Fri, 5 Jun 2009 12:24:39 -0400 Mike Frysinger wrote: > > > > On Friday 05 June 2009 07:36:48 Jeff Layton wrote: > > > > > Doing this now would add wider testing exposure for these > > > > > codepaths and help flush out bugs in TIRPC+IPV4 > codepaths. OTOH, > > > > > it means adding a new library dependency for packagers, or > > > > > they'll need to take the conscious step to > --disable-tirpc when they configure. > > > > > > > > or have the configure script dump a warning whenever > libtirpc is > > > > not used ... > > > > > > The problem there is that these sorts of warnings tend to > get lost > > > in the noise. So then you have the situation where people aren't > > > sure whether they built against libtirpc or not. Only running ldd > > > against the binaries will tell you. > > > > the configure script knows whether it's going to be > building against libtirpc. > > it isnt going to happen randomly during `make`. > > AC_MSG_WARNING([ > > > > You really should think about switching to libtirpc > > > > ]) > > > > maybe it's different in Gentoo, but people report configure > warnings > > all the time ;) > > > > Well, Gentoo probably has a larger percentage of people > compiling the sources. Other distros generally distribute the > binaries. But to be fair, it's not unreasonable to expect > people who are compiling from sources to know what they're doing. > > > > > > We could make it so that configure looks for libtirpc and if > > > > > it's not available, configures the build against legacy RPC > > > > > interfaces. I think this is a bad idea however. While > it should > > > > > "just work" either way, there are some small behavioral > > > > > differences when TIRPC support is built in. I think it's > > > > > probably better to make enabling and disabling TIRPC > a conscious step. > > > > > > > > i think this is the correct behavior for unspecified configure > > > > flags > > > > > > In general, yes. In this case though I think it's reasonable to > > > force people compiling the package without tirpc > installed to take > > > the conscious step to either install the right libs and > headers, or > > > to add --disable-tirpc. > > > > > > I think doing so will lead to a more deterministic > outcome in this > > > situation. If that's a problem however, I'm willing to > listen to the > > > reasoning and reconsider... > > > > i just dont agree with having to re-run configure to "fix" > a condition > > that the configure script should already be able to handle. > but i'm > > speaking in general terms here, not specific to what you propose as > > that isnt exactly the same thing. i dont feel too strongly here, > > especially since it doesnt affect me in any realistic way. > > -mike > > Ok, fair enough. I don't feel terribly strongly about this > either and that is the the conventional way that configure > options work (don't fail unless absolutely necessary). I'll > see about coding up a patch that makes --enable-tirpc the > default but falls back to legacy RPC code with a warning if > TIRPC libs/headers aren't present. Changing the default because the code isn't sufficiently tested strikes me as a particularly bad idea. If Red Hat wants more testing, distribute nfs-utils with TIRPC enabled in Fedora, and _then_ change the default in nfs-utils after more testing has occurred. Delegating testing to unsuspecting end-users (especially people who need to rebuild in production environments) seems like an ideal way to cause real problems. And ffs, don't change the existing configure behavior. When nfs-utils is supposed to build with TIRPC (e.g., when TIRPC is the default), the configure should fail if TIRPC isn't installed. Perhaps the error message on failure could suggest running configure with --disable-tirpc. -Dan > > Thanks for the input... > > -- > Jeff Layton <jlayton@xxxxxxxxxx> > -- > To unsubscribe from this list: send the line "unsubscribe > linux-nfs" in the body of a message to > majordomo@xxxxxxxxxxxxxxx More majordomo info at > http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
