[Lazarus] multiple versions and portable lazarus

[Marco van de Voort]

On Tue, May 31, 2011 at 11:37:35PM +0200, Mattias Gaertner wrote:
> > I do agree that installers should ask if the old config should be reused.
> > They seem to be versioned, so that should be possible.
> 
> The version is for the format. The IDE upgrades automatically old
> configs. But it does not automatically change paths.
> The problem is that some 0.9.30 installers install Lazarus and/or FPC to
> another directory than the 0.9.28 installers, but do not adapt the
> paths in the configs.
> Therefore 0.9.31 now checks a few more things and
> shows a setup dialog.

Good. It bit me several times that I put a lazarus on some machine that had
Lazarus before, and it would refuse to start (since the version the config
was from had packages installed that were not installed in the new version,
don't exist anymore, or were 3rd party)