Don't Trip on the Red Carpet, Evolve with GNOME CVS
A Good Week for Compulsive Updaters

Michael Hall
Friday, February 23, 2001 09:00:10 AM
I bet there's a malady common to all Debian users, courtesy of the
addictive simplicity of apt-get: it involves running apt-get
update ten times a day looking to see if any of the archives have
changed, heralding the arrival of something good, like a nagging bug
that's been fixed, or the latest release of a closely watched
program. It's a sickness, but when you have a sources.list that
includes everything from Galeon's latest builds to Evolution to the
ever-evolving KDE2 archives maintained by Ivan Moore, there's always a
chance something's changed.
This last week has been a great one for GNOME watchers, and it
provided plenty of opportunities for a lot of apt-getting. Last
Saturday, GNOME 1.4's first beta release came out. Ximian had it packaged and ready to
go in remarkably short time. A few days later, Ximian was at it
again,rolling
out Red Carpet 0.9, which we'll look at further along in this column.
GNOME 1.4 Beta One: Hold Your Horses and Give it a Week
GNOME 1.4 Beta One provided a lot of people with their first look at
the upcoming 1.4 release, including the first chance a lot of people
just following along have had to see Eazel's Nautilus running on their
machine. There's a lot of interesting stuff to see in the release,
but it's a good one to stay away from for the moment unless you're
genuinely interested in helping the developers find bugs. I
emphasize that last because this is a case where they're making a
widespread release to get the word out, get some eyeballs trained on
potential problems, and prime Bugzilla with some fodder. They aren't
releasing a new stable version you can get work done with, so people
approaching it should take stock of whether they want to download it
out of a desire to help or a need to have the latest and greatest
because it's there.
Sometimes helping out your favorite project by compulsively
downloading the latest snapshot or refreshing your copy of the CVS
tree of a favorite project is hard. It involves things breaking, or
going wrong, or not working as billed, and this particular release is
no exception. Though the version of gdm, the GNOME X display
manager, that ships with the beta has a "GNOME Classic" option for
using GNOME 1.2, there are a lot of core libraries that get updated
for this beta, and some things break as a result.
Download this with your eyes open or, better yet, give it another
week or two: a second beta that will likely take care of the worst of
the bugs unearthed by the more adventurous is supposed to be making
its way out in a week (February 28).
Opportunity knocks in the form of a broken library
This brings us around to another issue, preparatory to getting a
long-deferred hands-on with Red Carpet, Ximian's package manager,
which is the price you sometimes pay for following a lot of
cutting-edge projects closely: mangled dependencies. The latest
victim of this particular syndrome is Evolution.
Evolution and Red Carpet both depend on the gtkhtml library.
Evolution, for instance, uses it in part to render HTML mail and in
part for composition of messages. A version of gtkhtml was shipped
out that broke elements of the library needed to compose messages in
Evolution, leaving a lot of people curious about Red Carpet with a
broken mail client to contend with.
By the time this hits the web, there's a chance the snapshots Ximian
is shipping will have corrected the problem (they're reportedly moving
their servers this week, contributing to a slowdown), but in case it
doesn't, this is an excellent opportunity for the curious to learn a
little about GNOME CVS, because all that's needed to get both Red
Carpet up and running and restore Evolution to proper
functionality is a build of gtkhtml from CVS.
The GNOME project has provided a page that teaches a little about how to use anonymous
CVS to get the latest elements of the GNOME project. There's no
point in replicating all the information that link provides, since
it's clear and concise and even I can follow along. The thing to keep
in mind is just that in order to have both Red Carpet and Evolution
running alongside each other at this point, you want to get a copy of
gtkhtml with cvs -z3 checkout gtkhtml once you've set the
proper environmental variables. You'll need to build the library and
replace the existing gtkhtml once you've installed Red Carpet, because
most of the means for obtaining it will automate the installation of
the newer, broken version of the library.
Building from CVS, just to provide one more caveat for newer users,
isn't the same as building from a tarball. CVS builds involve using
the autogen.sh script found in the package's directory and
passing appropriate variables to it much as you would with a typical
configure script found in source tarballs. In the case of
building for GNOME packages, putting new builds in right place is
key. You'll likely want to use the line:
./autogen.sh --prefix=/usr --sysconfdir=/etc
if you're building against a GNOME installation you downloaded as
binary packages for your distribution.
You can probably install the library over the existing one Red Carpet
will install, but if you can, force the removal of the package using
either the dpkg -r --force-depends command or RPM's rpm
-e --force. Your package manager may complain for a day or two,
but it's tidier when it comes time to resync with whoever's providing
your binary packages, because you'll be able to simply make
uninstall the library you built from CVS and replace it with a
normal binary package when the time's right without worry of cruft
being left laying around in your directories.
Next: Looking at Red Carpet »