[plt-scheme] Re: PLT Scheme v4.0.2

From: Eli Barzilay (eli at barzilay.org)
Date: Tue Jul 8 09:09:28 EDT 2008

On Jul  8, Matthew Flatt wrote:
> Did you pick the name "PLT Scheme v4.0.1" when previously installing
> v4.0.1 on the same machine?

Yes, you would need to do that -- and not uninstall 4.0.1 when you
install 4.0.2.  That will make the installer pick up the previous
values when used.  This is, AFAICT, standard practice with NSIS
installers, and the intention is that if you choose an unconventional
directory (for example, "C:\bin\PLT" instead of "C:\Program
Files\PLT"), then when you try to install a newer version it will
default to putting it in the same place.

This is all due to the assumption that you should have a single PLT
installation, and that you upgrade it from release to release.  This
assumption is implemented by using `PLT' in the registry keys.  It is
different for the nightly builds -- in that case, the registry key
will be `PLT-<version>', and that follows the assumption that you
almost always want that in addition to some other version (like the
last stable release).

Another problem with this is that if you run the 4.0.1 uninstaller, it
will read out the registry keys that were overwritten by the 4.0.2
installer, and remove that instead of itself.

So, all of this make it sound like it's better to use a
version-specific key for the start menu directory and for the
installation directory.  (If it was a convenient language, I could
make it remember the base name too, and use that as future defaults,
but the NSIS language is extremely limited and will make such string
manipulation pretty difficult.)

> I think the default is "PLT Scheme", but the installer remembers an
> alternate name that you pick, and then suggests the same name next time
> you install. I always add a version number, so I see this same effect
> where the suggested name has the version that I most recently installed
> before.
> Matthew
> At Tue, 08 Jul 2008 15:41:02 +0900, Benjamin L.Russell wrote:
> > "PLT Scheme v4.0.1" also appears, instead of "PLT Scheme v4.0.2," as
> > the default Start Menu folder name in the official build version 4.0.2
> > of DrScheme.
> > 
> > -- Benjamin L. Russell
> > 
> > On Fri, 4 Jul 2008 21:03:38 -0400, Eli Barzilay
> > <eli at barzilay.org> wrote:
> > 
> > >PLT Scheme version 4.0.2 is now available from
> > >
> > >  http://plt-scheme.org/
> > >
> > >This release fixes a bug that caused PLaneT packages to install
> > >abnormally slow in 4.0.1.
> > >
> > >[ For those that use the nightly builds, subversion, or
> > >4.0.1tsrj2008, you already have this fix (and even more fixes).
> > >You do not need to upgrade.  The version in svn is now to
> > >minimize confusion. ]
> > >
> > >Feedback Welcome,
> > 
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          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                  http://www.barzilay.org/                 Maze is Life!

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